Basicmedical Key

Amyloid Tumor Key Facts Terminology Synonym Amyloidoma Definition Pulmonary mass composed of amyloid without evidence of systemic disease Etiology/Pathogenesis Specific cause to account for presence of amyloid in lung without…

Capillary Hemangiomatosis Key Facts Terminology Benign condition characterized by proliferation of small capillaries in pulmonary interstitium Etiology/Pathogenesis Possible autosomal recessive inheritance has been mentioned May also appear as an incidental…

Metastatic/Dendriform Calcification Key Facts Terminology Nonneoplastic condition characterized by the deposition of calcified material in the lung parenchyma Etiology/Pathogenesis This condition may appear in response to different clinical conditions that…

Placental Transmogrification Key Facts Terminology Synonyms: Placentoid bullous lesion, giant bullous emphysema, pulmonary lipomatosis Benign unusual condition characterized by bizarre changes in shape of normal lung parenchyma Etiology/Pathogenesis Some cases…

Nonspecific Interstitial Pneumonia Key Facts Clinical Issues 25-60 years (average: 50 years) Diffuse, bilateral process, predominantly distributed in lower lobes Dyspnea Cough Fever Disease has insidious onset with slowly progressive…

Diffuse Alveolar Damage Key Facts Terminology Acute inflammatory reaction involving endothelial and epithelial cells of the alveolus Clinical Issues Nonspecific histologic pattern of acute lung injury that may occur in…

Rosai-Dorfman Disease Key Facts Terminology Synonym: Sinus histiocytosis with massive lymphadenopathy (SHML) Etiology/Pathogenesis Unknown Possible infectious origin Possible immunologic response Clinical Issues R-D disease is unusual tumoral condition more commonly…

Hyalinizing Granuloma Key Facts Etiology/Pathogenesis Unusual condition of unknown origin May have autoimmune origin PHG may be associated with conditions with similar histological features, including Retroperitoneal fibrosis Sclerosing mediastinitis Clinical…

Diffuse Large Cell Lymphoma Key Facts Etiology/Pathogenesis May arise from progressive transformation of preexisting low-grade MALT lymphoma Clinical Issues Adults from 50-70 years of age Usually peripheral in location Microscopic…

Benign Metastasizing Leiomyoma Key Facts Clinical Issues 30-50 years of age Exclusively observed in women Lesions are usually multiple and may be bilateral, suggesting metastatic disease Macroscopic Features Well-circumscribed, tan-white…