We report the case of a 60-year-old woman with endometrial mucinous adenocarcinoma. Endometrial cytology showed tumor cells arranged in papillary and complex ductular structures. Although the diagnosis of endometrial adenocarcinoma was initially considered based on the cytological findings, the low nuclear : cytoplasmic ratio and polarity of the tumor cells prevented a definitive cytological diagnosis. Pathological examination of the resected specimen revealed that most of the tumor cells were cuboidal and contained intracellular mucin, the cells resembling those of the endocervical type of mucinous adenocarcinoma. Thus, we finally made the pathological diagnosis of endometrial mucinous adenocarcinoma.
We report the case of a 72-year-old man in whom the peritoneal fluid contained herpes simplex virus (HSV)-infected cells. Cytology of the peritoneal fluid revealed abundant mononuclear or multinucleated giant cells. The multinucleated cells showed molding with ground-glass nuclei, and positive immunostaining for calretinin and type I and II HSV. Electron microscopy showed intranuclear viral capsids measuring 100 nm in diameter in the infected cells. These results indicate that the giant cells were HSV-infected mesothelial cells.