title: [Undifferentiated adenocarcinoma of the lung associated with sarcoidosis--differential diagnosis].
abstract: A 51-year-old male with undifferentiated adenocarcinoma of the lung associated with sarcoidosis is reported. Scalenus node biopsy and open thoracotomy revealed sarcoid granuloma. High levels of serum angiotensin-converting enzyme and ocular findings also suggested sarcoidosis. No malignant cells were recognized by repeat lymph node biopsy. However, post-mortem examination showed bronchial carcinoma; no sarcoid granuloma was found. The diagnostically difficult points of our case are discussed.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000473:pathology*; D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications / Q000473:pathology*; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012507:Sarcoidosis / Q000150:complications / Q000473:pathology*