title: Primary malignant fibrous histiocytoma of the lung. Fine needle aspiration cytologic features.
abstract: A case of primary malignant fibrous histiocytoma of the lung occurring in a 71-year-old woman is presented. The preoperative aspiration cytology showed a large-cell, undifferentiated, malignant neoplasm suggestive of carcinoma. Subsequent histologic examination revealed a primary malignant fibrous histiocytoma. The diagnosis was confirmed by electron microscopic and immunohistochemical studies. Cytologic features of this rare primary pulmonary sarcoma are discussed.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis* / Q000473:pathology / Q000648:ultrastructure; D006651:Histocytochemistry; D006801:Humans; D007124:Immunoenzyme Techniques; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000648:ultrastructure; D008854:Microscopy, Electron