Shugen Takahashi

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Adenocarcinomas arising from adenomyosis uteri are rare. This study reports four such cases and characterizes them clinically and microscopically. In all four patients, the endometrial cytology was negative, and MR imaging and ultrasound sonography did not detect the tumors preoperatively. The histological subtypes of the four tumors were endometrioid (one(More)
Extrapulmonary small cell carcinomas are often associated with carcinomas of other cell types. Although a hypothesis that extrapulmonary small cell carcinomas arise from a multipotential stem cell could explain this mixed feature, recent molecular evidence supports another possibility that the small cell component may arise as a late-stage phenomenon in the(More)
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