Intracapsular and Paraarticular Chondroma of the Infrapatellar Hoffa's Fat Pad: A Case Report

Intracapsular and paraarticular chondroma is a rare benign lesion of the large joints (mostly the knee). We report a case of intracapsular and paraarticular chondroma in the infrapatellar Hoffa's fat pad that presented as a painful palpable mass in 15-yearold woman. A physical examination revealed a firm, movable and tender mass in the infrapatellar area. Magnetic resonance images showed an ovoid, well-defined, soft tissue mass with focal calcification in the infrapatellar fat pad. The final pathology revealed an intracapsular and paraarticular chondroma.

Primary Malignant Fibrous Histiocytoma of the Mesentery: A Case Report

A malignant fibrous histiocytoma of the mesentery is rare, and multifocal involvement as a primary tumor is very rare. In this report, a case of malignant fibrous histiocytoma of the mesentery presenting with two masses and multiple peritoneal seeding in a 48-year-old man is described. A physical examination revealed a large, firm, and non-tender mass in the right lower abdomen of the patient. Computed tomography of the lesion revealed a partially, indistinctly marginated and heterogeneously enhancing mass with irregular peritumoral strands in the mesentery of the right lower abdomen, while sonograms of the lesion revealed an ill-defined low-echoic mass. The final pathology demonstrated the presence of a storiform-pleomorphic malignant fibrous histiocytoma.

Primary Mucosa-Associated Lymphoid Tissue Lymphoma of the Breast: A Case Report

A primary mucosa-associated lymphoid tissue lymphoma (MALT lymphoma) of the breast is extremely rare. We report a case of a MALT lymphoma of the breast that presented as a palpable left breast mass in a 37-year-old woman. A physical examination revealed a large firm, and fixed mass in the left inner breast. Mammograms showed a large, isodense mass in the lower inner quadrant of the left breast and an enlarged lymph node in the axilla. A sonogram demonstrated a 5 cm sized, oval, circumscribed, and heterogeneously hypoechoic mass with posterior acoustic enhancement. A surgical biopsy was performed, and the pathology revealed a MALT lymphoma.