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The mediastinum has three main parts: the anterior mediastinum (front), the middle mediastinum, and the posterior mediastinum (back). Masses in the anterior portion of the mediastinum can include thymoma, lymphoma , pheochromocytoma , germ cell tumors including teratoma , thyroid tissue, and parathyroid lesions.
The diagnosis of a mediastinal germ cell tumor should be considered in all young males with a mediastinal mass. In addition to physical examination and routine laboratory studies, initial evaluation should include CT of the chest and abdomen, and determination of serum levels of HCG and alpha-fetoprotein.
Chronic sclerosing (or fibrosing) mediastinitis, while potentially serious, is caused by a long-standing inflammation of the mediastinum, leading to growth of acellular collagen and fibrous tissue within the chest and around the central vessels and airways. It has a different cause, treatment, and prognosis than acute infectious mediastinitis.
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The term "secular saint" has also been used with reference to the incel community, which has been observed referring to mass-killer Elliot Rodger as "Saint Elliot" within the online spaces and discourses of the community and celebrating the anniversary of the 2014 Isla Vista killings as "Saint Elliot Day".
Micrograph of a primary mediastinal large B-cell lymphoma, a cause of mediastinal lymphadenopathy. H&E stain. Mediastinal lymphadenopathy or mediastinal adenopathy is an enlargement of the mediastinal lymph nodes.
This PA chest radiograph demonstrates an abnormal contour in the right hilar region, with visualization of the pulmonary vessels through the mass (the hilar overlay sign) indicating its posterior mediastinal location. On resection this was found to be a benign solitary fibrous tumor of the pleura.
Sant differs from saint not merely in the etymological sense but also in usage. The word is used in various contexts: [2] [6] [8] In fifteenth- and sixteenth-century India under Islamic rule, it was used generally to describe teachers and poet-scholars who led worshippers and communities the praises of god or goddess within the Bhakti movement in Hinduism.