Chondroma of the diaphragm--report of a case.

A rare case of chondroma of the diaphragm is reported. The patient was a 23-year-old female who had had recurrent upper abdominal pain for 4 years. Her symptoms and physical findings on admission suggested an intra-abdominal tumor. Roentgenological study disclosed a mass with a thick calcified wall in the upper abdomen. Laparoscopy revealed a multinodular white mass protruding from the left hemidiaphragm. The mass was surgically enucleated from the diaphragm. The resected tumor had a thick, calcified wall and a narrow lumen containing colorless fluid. Microscopic examination disclosed a hyaline chondroid matrix with mature chondrocytes, as well as extensive ossification. Primary tumor of the diaphragm is an uncommon disease. Only one case of chondroma of the diaphragm has been reported in the literature. Laparoscopy was useful in confirming the tumor's location and in speculating on its nature.