Adenomatoid tumor of the uterus: report of a case and review of the literature.

Tsuyoshi Murao, Hiroaki Motoyama
In: Acta medica Okayama · 1977 · vol. 31(6) , pp. 393–404 · doi:10.18926/amo/30818 · PMID:147608 · W109327442
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Abstract

A case of uterine adenomatoid tumor in a 47-year-old female was studied with both light and electron microscopes. The tumor was circumscribed, 2.5 cm in diameter, and located in the posterior wall of the uterus. In light microscopy, tumor cells showing "signet-ring" appearance arranged in cords or tubules. Hyaluronidase-sensitive acid mucopolysaccharide was present in the cells and luminal surfaces. Mucicarmine stain was negative and periodic acid-Schiff reaction was faintly positive. In electron microscopy, the tumor showed basal laminae, well-developed desmosomes and numerous microvilli. Intercellular spaces were present between adjacent cells. Small intercellular spaces were separated from the large lumens by desmosomes and tight junctions, while large spaces communicated with the tubular lumens. Forty-four reported cases of adenomatoid tumor in females were briefly reviewed.

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