Compartment Boundaries Major contents Prevascular Superior: Thoracic inlet Inferior: Diaphragm Anterior: Sternum Lateral: Parietal (mediastinal) pleural reflections; lateral margin of the bilateral internal thoracic arteries and veins, and superior and…

Fig. 7.1 A CT scan shows the appearance of a NUT carcinoma, as a hypoattenuating, heterogenously enhancing, necrotic mass with poorly defined, infiltrative borders It was in this rare cancer that…

Fig. 10.1 Lipoma with mature adipose tissue and uniform-sized adipocytes (H & E, 200×) Lipoma Variants Angiolipoma is an adipocytic tumor composed of proliferation of vascular channels, mostly capillaries, in adipose…

Fig. 8.1 H&E morphology of primary mediastinal large B cell lymphoma. a+b Low power view showing solid as well as diffuse infiltrative tumor areas. b Higher magnification shows interstitial infiltration of…

Fig. 2.1 Division of the mediastinum into prevascular, visceral, and paravertebral compartments, based on cross-sectional imaging as defined by the International Thymic Malignancy Interest Group. Panel A prevascular compartment. Panel B…

  Non-neoplastic Prevascular Thymic cyst True thymic hyperplasia Thymic follicular hyperplasia Thyroid goiter Parathyroid hyperplasia Fibrosing mediastinitis Castleman disease Visceral Pericardial cyst Bronchogenic cyst Paravertebral Esophageal cyst Gastric, enteric, or…

Fig. 6.1 Mature teratoma. A needle core biopsy shows skin with epidermis (a, arrow, b), and sebaceous glands. In another area (a, arrowhead, c), respiratory epithelium is present. These findings are…