Mediastinum unremarkable

Nonneoplastic: mediastinitis, sclerosing myasthenia gravis other nonneoplastic thymic follicular hyperplasia true thymic hyperplasia. Cystic lesions: bronchogenic cyst enteric (esophageal) duplication cyst meningocele-cystic Müllerian cyst (Hattori cyst) pericardial cyst teratoma-cystic thymic cyst. Thymoma: thymoma thymolipoma.

Mediastinum unremarkable. SUMMARY Staging of the mediastinum has long been a part of essential best practice in lung cancer management. This review aims to provide an overview of important key issues, such as anatomical considerations from the 2009 International Association for the Study of Lung Cancer lymph node map, as well as noninvasive and invasive staging techniques for the mediastinum. A suggested sequence of ...

In proximal aortic dissection, if the outer layer of the dissected aorta bulges out, the mediastinum will be widened, but if the inner layer buckles in without the outer layer bulging out, the ...

Perhaps best known as the last home of Elisa Lam before her mysterious death, the Cecil Hotel has a sordid past full of murders and mayhem. Care to step inside? Advertisement Tucke...Cross-sectional imaging including computed tomography (CT) and magnetic resonance imaging (MRI) detect incidental thyroid nodules (ITNs) and can be used in the evaluation of thyroid cancers and goiter [ 1, 2 ]. The aim of this article is to provide a pictorial review of a broad spectrum of incidental and non-incidental thyroid findings on CT scans.Anatomy of the mediastinum on a computed tomogram. a Computed tomography reconstruction of the coronary section level.b–d Transverse sections of the mediastinum from caudal.abrachiocephalic veins, AA aorta ascendens, AD aorta descendens, AO aorta, AOB aortic arch, C carotid artery, LP left pulmonary artery, LV left ventricle, Ö esophagus, RA right atrium, RP right pulmonary artery, RV right ...The staging of mediastinal lymph nodes for lung cancer is crucial for planning treatments or reinterventions. In potentially curable patients the aim of mediastinal staging is to exclude the presence of malignancy in mediastinal lymph nodes with a high level of accuracy while also considering clinical factors and the balance of the benefits and risks of tissue sampling techniques.The left subclavian and axillary arteries were otherwise unremarkable, with good opacification of the arteries. (b) Coronal three-dimensional maximum intensity projection shows abrupt cutoff (arrow) of the left brachial artery. (c, d) Axial chest CT angiographic images show the typical appearance of lung changes in COVID-19 pneumonia (arrows in c).Although the thymus is centered in the superior mediastinum, frequently a radiologically detectable cervical component of the gland can be seen in children and young adults. 1 This cervical extension can mimic a pathologic mass or enlarged lymph node, potentially leading to unnecessary surgery and increased medical costs. Radiologists are often unaware of residual cervical thymus tissue as a ...Please read the disclaimer. Unremarkable is a term that can be found in radiology reports of all kinds. From X-rays all the way to advanced imaging modalities like CT and MRI. Unremarkable can be used in the body or conclusion of the report. Unremarkable may be used multiple times in a report referring to organs, structures, and even the entire ...

Mediastinal lymphadenopathy (swelling or enlargement of lymph nodes in the mediastinum, the central compartment of the chest) is not always indicative of cancer. When the lymph nodes in the mediastinum become enlarged, it is called mediastinal lymphadenopathy. Mediastinal lymph node enlargement can occur from a wide range of …Whether you obtained a copy of iOS 5 as a developer or through less-official channels, you can get a free me.com email address right now. Here's how. Whether you obtained a copy of... Annotated frontal and lateral chest x-ray with structures that account for the mediastinal outline labeled. Case Discussion A thorough understanding of the structures which normally contribute to cardiomediastinal outline is essential in being able to interpret chest x-rays and localize abnormalities. Bilateral renal cysts appear simple Kidneys and ureters: Unremarkable. Bowel: Gastric wall thickening. No small bowel dilation or wall thickening. Mild pancolonic wall thickening. Extensive sigmoid and to a lesser degree descending colonic diverticulosis. Moderate stool within the rectal vault. Bladder: Unremarkable. Reproductive organs ...Nonneoplastic: mediastinitis, sclerosing myasthenia gravis other nonneoplastic thymic follicular hyperplasia true thymic hyperplasia. Cystic lesions: bronchogenic cyst enteric (esophageal) duplication cyst meningocele-cystic Müllerian cyst (Hattori cyst) pericardial cyst teratoma-cystic thymic cyst. Thymoma: thymoma thymolipoma.

Mediastinal tumors include thymomas, lymphomas, germ cell tumors and cysts, among others. They're masses of cells that appear in the space between your lungs, called the mediastinum. These tumors may be malignant (cancerous), but they're usually benign (noncancerous). Surgery is the most common treatment. Contents Overview Symptoms and ...Mediastinal lymphadenopathy is the swelling of lymph nodes in the chest, specifically the mediastinum (the area between the lungs containing the heart, trachea, and esophagus ). It is a sign of an underlying medical condition. Some of the conditions that may cause mediastinal lymphadenopathy include an infection such as tuberculosis, an ...Grossly Unremarkable Meaning. Grossly Unremarkable means that a close examination of an affected part of a body with the naked eye did not reveal anything peculiar. Therefore, it is ‘grossly’ understandable that nothing was worth diagnosing, or in other words, it is ‘unremarkable.’. This does not necessarily mean that everything is okay.The thymus can be seen on chest radiographs within 24 hours after birth, then becomes smaller after the age of 2 years. It is rarely seen after the age of 8 years 10. The thymus is seen as a triangular sail ( thymic sail sign) frequently towards the right of the mediastinum. It has no mass effect on vascular structures or airways.Dec 6, 2012 · Results. Tissular components of the mass, the degree of vascularisation and the relationships with mediastinal structures assessed by computed tomography (CT) or magnetic resonance imaging (MRI) are a leading edge of the radiological diagnosis. Special applications at MRI have been developed over the recent years in order to identify accurately ... mediastinum, diaphragm, or esophagus – who can comprehend it, and who are able to establish structural, functional, and imaging relationships. Together these two issues of Thoracic Surgery Clinics (part one was published in November 2007, Volume 17, Number 4) on thoracic anatomy provide not only a complete and in-depth revision

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The mediastinum is the thoracic area between the 2 pleural cavities. The mediastinum contains vital structures of the circulatory, respiratory, digestive, and nervous systems including the heart and esophagus, and major thoracic vessels including the superior vena cava, inferior vena cava, pulmonary arteries, pulmonary veins, and aorta.Cross-sectional imaging including computed tomography (CT) and magnetic resonance imaging (MRI) detect incidental thyroid nodules (ITNs) and can be used in the evaluation of thyroid cancers and goiter [ 1, 2 ]. The aim of this article is to provide a pictorial review of a broad spectrum of incidental and non-incidental thyroid findings on CT scans.The X-ray was unremarkable except two left sided possible granulomas. The CT scan (Figure 1), in addition to the X-ray findings, showed a 4.5 × 3.3 cm mildly enhancing soft tissue mass in the right posterior mediastinum at the cardiophrenic angle separate from the orthotopic liver. The radiology report suspected an enlarged lymph …Check out our guide for information on the best tiny house movers to help you move your tiny house with ease. Expert Advice On Improving Your Home Videos Latest View All Guides Lat...Practice Essentials. The mediastinum is an area of the body in which a wide range of tissue variability exists. Therefore, tumors and cysts that occur in this area can represent many different clinical entities and pathologic processes. An understanding of the embryology of this area and an awareness of the anatomic relations of the normal ...Cardiac silhouette refers to the outline of the heart as seen on frontal and lateral chest radiographs and forms part of the cardiomediastinal contour.. The size and shape of the cardiac silhouette provide useful clues for underlying disease. Radiographic features. From the frontal projection, the cardiac silhouette can be divided into right and left borders:

mediastinal mass, Tc-99m pertechnetate or I-123 scintigraphy can be performed and can yield a specific diagnosis, although I-123 scintigraphy may be preferable because of its higher uptake in thyroid tissue and less background activity [38]. If extramedullary hematopoiesis is a diagnostic consideration for a paravertebral mass or multipleWe would like to show you a description here but the site won’t allow us.The posterior mediastinum is a potential space along the paravertebral sulci or between the posterior aspect of the pericardium and the vertebrae. This compartment is classically the most frequent location site of neurogenic tumors. Whereas neurofibroma and schwannoma are neurogenic tumors that commonly arise from peripheral nerves, sympathetic ...A wide variety of abnormalities may be encountered in the paravertebral mediastinum, ranging from congenital lesions to malignant neoplasms. A combination of localizing mediastinal masses to the paravertebral compartment, characterizing them with cross-sectional imaging techniques, and correlating the imaging findings with …A number of mediastinal reflections are visible at conventional radiography that represent points of contact between the mediastinum and adjacent lung. The presence or distortion of these reflections is the key to the detection and interpretation of mediastinal abnormalities. Anterior mediastinal masses can be identified when the hilum overlay sign is present and the posterior mediastinal ...The caudal mediastinum extends from the heart to the diaphragm. FIGURE 17.1 Schematic transverse image of the thorax at the level of the heart. The parietal pleura, which covers the inner margin of the thoracic wall, continues into the mediastinal pleura which separates the left and right pleural cavities.Between-center FDG-PET variability in absolute SUVmax obtained from the tumor and the hypermetabolic image with the highest FDG uptake in the mediastinum was statistically significant (p = 0.016 and p < 0.001 respectively; one way ANOVA) (Figs. 1a and 1b).This variability in the mediastinum values disappeared when the SUVmax of the …Dec 16, 2020 ... I got a chest x-ray at my local hospital. The report in my health app says that the results are “unremarkable.” Just…. nothing worth commenting ...

The cardiac silhouette was enlarged. The Cardio-Thoracic Ratio (CTR) measured 31/50 cm - 62%. A normal ratio should be less than 50%. The lungs and pleural spaces were clear. No evidence of alveolar or interstitial edema. No evidence of aortic or coronary artery calcification.

The mediastinum is the thoracic area between the 2 pleural cavities. The mediastinum contains vital structures of the circulatory, respiratory, digestive, and nervous systems including the heart and esophagus, and major thoracic vessels including the superior vena cava, inferior vena cava, pulmonary arteries, pulmonary veins, and aorta.Objective: We investigated whether the lung volume determined on CT, especially the volume of the normal lung, is correlated with mean pulmonary artery pressure (PAP) in patients with chronic fibrosing idiopathic interstitial pneumonia (IIP). Materials and methods: The subjects were 40 patients with IIP who underwent right heart catheterization (RHC) and chest CT.Rheumatoid factors were unremarkable. Shoulder magnetic resonance imaging (MRI) with contrast of the right shoulder revealed a partially captured, ring enhancing abscess formation in the right hemithorax and mediastinum. Neck and chest computed tomography (CT) with contrast showed an extensive cervical and mediastinal abscess formation and ...Jun 28, 2018 · Citation, DOI, disclosures and article data. Cardiac silhouette refers to the outline of the heart as seen on frontal and lateral chest radiographs and forms part of the cardiomediastinal contour . The size and shape of the cardiac silhouette provide useful clues for underlying disease. We would like to show you a description here but the site won’t allow us.Thyroid nodules are common, perhaps existing in almost half the population, as determined using ultrasonography (US). Only 4-7% of thyroid nodules detected with US are palpable in the adult population in the United States, with women affected more frequently than men. Although the thyroid is the most common endocrine organ to …A review of cardiomegaly, left atrial and right ventricular enlargement, mediastinal masses, and hilar enlargement.Video includes the following images (among...Dec 16, 2020 ... I got a chest x-ray at my local hospital. The report in my health app says that the results are “unremarkable.” Just…. nothing worth commenting ...

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We would like to show you a description here but the site won't allow us.Introduction. Anterior mediastinal masses are rare and account for approximately 50% of all mediastinal lesions (), with an estimated prevalence of nearly one percent in the general population ().Management of patients with anterior mediastinal masses incorporates clinical, laboratory and imaging features (Table 1) to first derive the most likely differential diagnoses and disease extent, and ...If the paraesophageal hernia causes symptoms, they can include severe chest pain, problems swallowing, stomach pain, and vomiting or retching. Complications can include strangulation (loss of blood supply), a twisted stomach, bleeding ulcers, and breathing problems.The Insider Trading Activity of O'Rear Brita Eve on Markets Insider. Indices Commodities Currencies StocksThis information is generally derived from the relationships among the normal anatomic structures of the mediastinum, pleura, and lungs, which represent the basis of the "cardiac silhouette" and "mediastinal lines-and-stripes" concepts that potentially play an important role in the establishment of a diagnosis or a spectrum of diagnoses before ...When an imaging report states “cardiomediastinal silhouette unremarkable,” it indicates that the shape, size, and appearance of the heart and mediastinum appear ...It says MEDIASTINAL STRUCTURES REMAIN UNREMARKABLE, NO OTHER SIGNIFICANT INTERVAL FINDING. What does this mean? Thanks. Submitted: 15 years ago. Category ... I have gotten a m i r and it say the visualized nerve roots of the cauda equina are unremarkable in appearance aside from increased T 1 signal within the filum terminale,likely ...Feb 24, 2014 ... An explanation of alveolar vs. interstitial opacities, including cardiogenic and non-cardiogenic pulmonary edema, and the 3 types of ... ….

Family Medicine 22 years experience. Portion of the chest: The mediastinum is the compartment in the middle of the chest between the lungs that contains the heart and esophagus. Created for people with ongoing healthcare needs but benefits everyone. Learn how we can help. 5.9k views Reviewed >2 years ago. This information is generally derived from the relationships among the normal anatomic structures of the mediastinum, pleura, and lungs, which represent the basis of the "cardiac silhouette" and "mediastinal lines-and-stripes" concepts that potentially play an important role in the establishment of a diagnosis or a spectrum of diagnoses before ... Radiological, macroscopic and microscopic views of thymic hyperplasia (A) CT obtained after i.v. administration of contrast showed a homogeneous thymus with soft tissue density in the anterior mediastinum (arrows).(B) There was reactive hyperplasia in the axillary lymph nodes on both sides (arrows).(C) The thymectomy material was macroscopically 20 cm × 10 cm × 1.5 cm in size and weighed 118 g.A chest CT confirmed bilateral hilar and mediastinal lymphadenopathy as well as perilymphatic nodules less than a centimeter in diameter throughout the lungs. In addition, a positron emission tomography (PET) scan revealed uptake in several mediastinal lymph nodes with a standard uptake value of 8. The patient denied any cough, weight loss ...Although one could expect that nodules attached to the costal, mediastinal, and diaphragmatic pleura would be of a similar nature to PFNs, the literature has paid little attention to these pleural-attached nodules. As a result, the ACR Lung-RADS committee cited insufficient evidence to support the same approach for considering other pleural ...Multiple different types of anterior mediastinal masses may be encountered on computed tomography (CT) imaging, and many of these lesions are neoplastic in etiology. These include masses arising from the thymus, thyroid and parathyroid glands, as well as lymph nodes, pericardium, and vessels and nerves. Often, the CT attenuation of the mass can ...Her medical history was unremarkable. Physical examination found that her left arm muscles were thicker than the contralateral ones (Fig. 1a). Breath sounds on auscultation were diminished at the upper left lung. Plain X-ray of the chest revealed a mass in the superior mediastinum (Fig. 1b).Best Answer. Pulmonary vascular means that the blood vessels in the heart and lung region looks normal and no problems were found. If something was found then it is possible to have pulmonary ...The middle mediastinum contains the heart, the great vessels, and the trachea. The posterior mediastinum is bordered by the chest wall and includes the descending aorta, oesophagus, vagus nerve, thoracic duct, and the sympathetic chain. The mediastinal lymph nodes are divided into visceral and parietal groups.Jun 28, 2018 · Citation, DOI, disclosures and article data. Cardiac silhouette refers to the outline of the heart as seen on frontal and lateral chest radiographs and forms part of the cardiomediastinal contour . The size and shape of the cardiac silhouette provide useful clues for underlying disease. Mediastinum unremarkable, Feb 24, 2014 ... An explanation of alveolar vs. interstitial opacities, including cardiogenic and non-cardiogenic pulmonary edema, and the 3 types of ..., Cardiovascular magnetic resonance (CMR) is an established non-invasive technique to comprehensively assess cardiovascular structure and function in a variety of acquired and inherited cardiac conditions. A significant amount of the neck, thorax and upper abdomen are imaged at the time of routine clinical CMR, particularly in the initial multi-slice axial and coronal images. The discovery of ..., Dec 3, 2014 ... - No gross pleural effusion is detected - Bony structures are intact. IMPRESSION : Unremarkable study เราสงสัยว่า Pulmonary vasculature is noted นี่ ..., The assessment of the pulmonary hila on chest x-ray is important for detecting potential mediastinal and lung pathology. Several features of the hilum and hilar point can be assessed: shape. normally appear as K or C-shapes on either side. contents: pulmonary arteries and veins, bronchi, lymph nodes. position, Mediastinal masses by Peter Mark; Annotated anatomy by Sachi Hapugoda #12 Heart, mediastinum. by Petro Chukur; Annotated Anatomy by Ben Ball Cardiothoracic anatomy by Karolina Brzegowy; mediastinum by Ioana Hutuca; CT CHEST by Raeesa Kabir; Surg_2 by Alexander Kirwan; 2. Corazón y Mediastino by Tito Alfredo Atencia Rincón; Thorax by Moulion ..., When the lymph nodes in the mediastinum become enlarged, it is called mediastinal lymphadenopathy. Mediastinal lymph node enlargement can occur from a wide range of diseases, either on its own or in association with other lung conditions. It usually stays less than 10 mm in diameter. The mediastinum is a bag-like area located in the thorax. It contains the heart, lungs, esophagus, and other ..., Mediastinum. Enlarged mediastinal lymph nodes are a common INCF in both cardiac MRI and CT, and may be identified in 2.4 to 4.7% of patients undergoing MRI [6, 31] and 1.7% of patients undergoing cardiac CT [2•]. These lymph nodes can indicate underlying malignancy or inflammation, and therefore are essential to detect and interpret., An unremarkable cardiomediastinal Silhouette is one that appears normal in shape and size, without any abnormalities present. This can provide important information to medical professionals in diagnosing certain conditions or diseases. ... The Silhouette is composed of the heart, mediastinum, lungs, and other structures in the chest cavity. It ..., The Middle Mediastinum. The mediastinum is the central compartment of the thoracic cavity, located between the two pleural sacs. It contains most of the thoracic organs, and acts as a conduit for structures traversing the thorax on their way into the abdomen. Anatomically, the mediastinum is divided into two parts by an imaginary line …, Although one could expect that nodules attached to the costal, mediastinal, and diaphragmatic pleura would be of a similar nature to PFNs, the literature has paid little attention to these pleural-attached nodules. As a result, the ACR Lung-RADS committee cited insufficient evidence to support the same approach for considering other pleural ..., Atelectasis (at-uh-LEK-tuh-sis) is the collapse of a lung or part of a lung, also known as a lobe. It happens when tiny air sacs within the lung, called alveoli, lose air. Atelectasis is one of the most common breathing complications after surgery. It's also a possible complication of other respiratory problems, including cystic fibrosis, lung ..., We would like to show you a description here but the site won’t allow us. , Mediastinal lymphadenopathy is the swelling of lymph nodes in the chest, specifically the mediastinum (the area between the lungs containing the heart, trachea, and esophagus ). It is a sign of an underlying medical condition. Some of the conditions that may cause mediastinal lymphadenopathy include an infection such as tuberculosis, an ..., The visceral mediastinum contains important vascular and non-vascular structures including the heart, great vessels, lymph nodes, and portions of the esophagus and trachea. Multiple imaging modalities, including chest radiography, computed tomography, MR imaging, and nuclear medicine studies, can be used to detect, …, Enlargement of the cardiac silhouette on a frontal (or PA) chest x-ray can be due to a number of causes 1: cardiomegaly (most common cause by far) pericardial effusion. anterior mediastinal mass. prominent epicardial fat pad. expiratory radiograph. AP projection (e.g supine radiographs taken with a portable machine) Recognizing enlargement ..., The thorax is the region of the trunk that lies between the neck above and the abdomen inferiorly. The thoracic cavity contains the laterally placed pleura and lungs separated by a median partition, called the mediastinum. Extent and boundaries of mediastinum are as follows: root of neck and thoracic outlet superiorly, diaphragm inferiorly ..., Lymphatic spread from RCC tends to follow the renal veins to involve the ipsilateral para-aortic nodes. There are also direct connections with the thoracic duct and mediastinum, which can account for the rare presence of mediastinal and hilar node involvement (Fig. 7a) at presentation (especially on the right side)., Your mediastinum is a space in your chest that holds your heart and other important structures. It’s the middle section of your thoracic cavity, between your left and right pleural cavities (which hold your lungs). Many conditions can affect the organs and tissues in your mediastinum, including tumors and infections., Mediastinal Lipomatosis. Mediastinal lipomatosis is the diffuse accumulation of excess unencapsulated fat within the mediastinum. This benign condition is usually seen in adult patients and may be associated with Cushing’s syndrome, exogenous steroid use, and obesity. Fat accumulation is usually most prominent in the anterior and superior ..., 縱膈 ( mediastinum )是指以 胸腔 為中心並由 疏鬆結締組織 所包圍的構造,它並無一個明顯的界限。. 本區域包含許多解剖構造,包含 心臟 及其周圍血管系統、 食道 、 氣管 、 膈神經 、 心臟神經 (英语:cardiac nerve) 、 胸导管 、 胸腺 ,以及胸腔 淋巴結 。. , Primary mediastinal leiomyosarcomas (LMS) arising in the anterior mediastinum are rare. The origin is estimated to be soft tissues or smooth muscles of mediastinal vessels. ... with no major past medical history. Physical examinations and laboratory tests, including tumor markers, were unremarkable. The chest CT revealed the presence of an ..., Her medical history was unremarkable. Physical examination found that her left arm muscles were thicker than the contralateral ones (Fig. 1a). Breath sounds on auscultation were diminished at the upper left lung. Plain X-ray of the chest revealed a mass in the superior mediastinum (Fig. 1b)., The azygos-esophagel recess is not a typical mediastinal line or stripe, but is an interface caused by the difference in density between the mediastinum and the postero-medial portion of the right lower lobe (RLL). It is a space within the mediastinum, lying lateral or posterior to the intrathoracic esophagus and anterior to the spine., The retroperitoneal space (retroperitoneum) is the anatomical space (sometimes a potential space) behind (retro) the peritoneum.It has no specific delineating anatomical structures. Organs are retroperitoneal if they have peritoneum on their anterior side only. Structures that are not suspended by mesentery in the abdominal cavity and that lie between the parietal peritoneum and abdominal wall ..., The anamnesis didn’t relate any chest pain, cough, dyspnea nor hemoptysis. The clinical examination, in particular pleuropulmonary, was unremarkable. The workup (Chest X-Ray and CT scan) demonstrated a voluminous pleural mass at the expense of the right mediastinal pleura, rounded in shape, with calcified wall and fluid content., 18F-fluorodeoxyglucose (FDG) PET/CT is a pivotal imaging modality for cancer imaging, assisting diagnosis, staging of patients with newly diagnosed malignancy, restaging following therapy and surveillance. Interpretation requires integration of the metabolic and anatomic findings provided by the PET and CT components which transcend the knowledge base isolated in the worlds of nuclear medicine ..., The mediastinum is the central compartment of the thorax that is bounded by pleura on the right and left, by sternum anteriorly, and by vertebra posteriorly. It contains loose connective tissue and several vital structures, including the heart, great vessels, esophagus, trachea, phrenic and cardiac nerves, thoracic duct, lymph nodes, and thymus, Mediastinal lymphadenopathy is a condition where the lymph nodes in the mediastinum, the central part of the chest cavity between the lungs, become enlarged. Several conditions can cause lymph ..., The visceral mediastinum contains important vascular and non-vascular structures including the heart, great vessels, lymph nodes, and portions of the esophagus and trachea. Multiple imaging modalities, including chest radiography, computed tomography, MR imaging, and nuclear medicine studies, can be used to detect, …, Introduction. Primary mediastinal masses are heterogeneous and have their own predilections for a specific compartment. Masses that are usually located in the anterior compartment of mediastinum are thymoma, germ cell tumours, or lymphoma, and thymoma is one of the most common neoplasm in adult cases [].On the other hand, mediastinal cysts arising from viscera, neurogenic structures, or ..., A detailed understanding of the structures that make up the normal contours of the heart and mediastinum (cardiomediastinal contour) on chest radiography is essential if abnormalities are to be detected. Frontal view (PA/AP) Right cardiomediastinal contour. From superior to inferior: right paratracheal stripe. seen in two thirds of normal films 1, The term subsegmental atelectasis includes any loss of lung volume so small that it does not cause indirect signs of volume loss (as might be seen with larger atelectases). A subtype of subsegmental atelectasis is linear atelectasis (also known as discoid or plate-like atelectasis, and historically as Fleischner lines on chest radiographs )., Jul 18, 2022 · The mediastinum is the central compartment of the thoracic cavity, located between the two pleural sacs. It contains most of the thoracic organs, and acts as a conduit for structures traversing the thorax on their way into the abdomen. Anatomically, the mediastinum is divided into two parts by an imaginary line that runs from the sternal angle ...