Chordoma Key Facts Clinical Issues Chest pain Shortness of breath Backache Usually are slow-growing neoplasms that may often be asymptomatic May behave aggressively with frequent recurrences & metastasis and occasional…

Epithelioid Hemangioendothelioma Key Facts Terminology Epithelioid hemangioendothelioma (EH) Clinical Issues Incidence Unusual tumor in mediastinal compartment May account for < 1% of all mediastinal tumors May affect individuals ranging from…

Mesenchymal Chondrosarcoma Key Facts Clinical Issues Extremely rare tumor Predilection for young adults (15-35 years) Slight female predilection Incidental finding on routine chest x-rays Aggressive malignancy Approximately 50% 5-year survival…

Malignant Mesothelioma Key Facts Etiology/Pathogenesis Mesotheliomas have been linked closely to asbestos exposure Clinical Issues Rare tumor that accounts for approximately 4-7 cases per 1,000,000 individuals Tumor is more common…

MALT Lymphoma of the Thymus Key Facts Terminology Low-grade lymphoma derived from distinct native population of thymic postgerminal center stage parafollicular B cells Etiology/Pathogenesis Believed to represent thymic counterpart of…

Solitary Fibrous Tumor Key Facts Clinical Issues Asymptomatic; incidental finding on routine chest x-ray Cough Pleuritic pain Dyspnea Hypoglycemia (5% of patients) Pulmonary osteoarthropathy with clubbing of fingers Microscopic Pathology…

Paraganglioma Key Facts Terminology Synonyms Extraadrenal paraganglioma, carotid body tumor Clinical Issues Incidence May occur at any age More common in 3rd decade of life May occur in anterior and…

Lymphoblastic Lymphoma Key Facts Etiology/Pathogenesis Neoplastic proliferation of blastic precursor lymphocytes Clinical Issues Occurs more commonly in children than in adults Anterior superior and middle mediastinum Rapidly enlarging mediastinal mass…

Pleural Endometriosis Key Facts Terminology Endometrioma, deciduosis Clinical Issues Incidence Unusual occurrence in thoracic cavity Predominantly in women of reproductive age May be seen in older postmenopausal women Symptoms Cough…

Mucoepidermoid Carcinoma of the Pleura Key Facts Terminology MEC Clinical Issues Symptoms Chest pain Shortness of breath Image Findings Pleural-based mass Diffuse involvement of pleura has not been recorded for…