Adenoid cystic carcinoma of the maxillary sinus with gradual histologic transformation to high-grade adenocarcinoma: a comparative report with dedifferentiated carcinoma.

We report a unique case of adenoid cystic carcinoma (ACC) of the maxillary sinus, with gradual histologic transformation from lower-grade ACC (cribriform and tubular types) to high-grade adenocarcinoma (HGA) showing a sequential histologic spectrum via solid-type ACC. A 74-year-old man presented with swelling and mild pain of the right cheek. CT scan showed a mass measuring approximately 4 cm, with marked bone destruction in the right maxillary sinus.

Pleomorphic adenoma (benign mixed tumor) of the breast: a case report and review of the literature.

We report a case of pleomorphic adenoma (benign mixed tumor) of the breast, which is an extremely rare location for this tumor. Examination of a 55-year-old woman unexpectedly revealed a mass measuring 0.8 cm in diameter in the subareolar region of the right breast.

Large cell calcifying Sertoli cell tumor of the testis: comparative immunohistochemical study with Leydig cell tumor.

Large cell calcifying Sertoli cell tumor is a rare type of testicular tumor. Reported herein is a Japanese patient with this tumor not associated with Carney's complex. An 11-year-old boy was admitted to hospital because of left testicular enlargement, and radical orchiectomy was performed.

Myocardial glucose metabolism assessed by positron emission tomography and the histopathologic findings of microvessels in syndrome X.

Background: Syndrome X has been recognized as a disease that is primarily reflected in the cardiac microvasculature. Myocardial metabolism in this condition has been studied, but not in relation to small vessel pathology.

Methods And Results: In order to examine the relationship between myocardial metabolism and small vessel pathology, 24 consecutive patients with syndrome X (7 men, 17 women; mean age 58 years) were evaluated by the thallium exercise stress test, positron emission tomography using F-18 fluoro-deoxyglucose (FDG), and an endomyocardial biopsy.