M J Rosenholtz

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It is well recognized that cocaine use can be associated with serious cardiovascular complications, including myocardial infarction. Several case reports have recently linked the use of cocaine with ischemic events of the small bowel and colon. We report a case of ischemic colitis complicated by perforation in a 47-yr-old diabetic man which occurred after(More)
The case of an 11-year-old boy with prepubertal gynecomastia is presented. Endocrine workup, including sex steroid and pituitary hormone concentrations, as well as chromosome analysis, was normal. Microscopy of the mastectomy specimen demonstrated, in addition to ductal proliferation and fibrosis, formation of lobules and acini, simulating female breast(More)
The authors report a case of leiomyosarcoma in the mediastinum presenting with superior vena cava obstruction, and also demonstrate the aggressive nature of this tumor in spite of radiotherapy. Where technically feasible, surgery appears to be the treatment of choice. The pathologic and electron microscopic features of this tumor are also described.
Squamous metaplasia arising in nonneoplastic breast parenchyma is reportedly rare. We present a unique case which occurred following severe blunt trauma to the right breast of a 59-yr-old woman. The lesion contained sheets of squamous cells with a lobular growth pattern, bland cytology with few mitoses, and keratin and keratohyalin granules. It bore a(More)