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Papillary tubular adenoma with marked tubular vacuolization
N Hattori1, S Imakado, K Kikuchi
1Department of Dermatology, University of Tokyo, Branch Hospital, Japan.
The Journal of Dermatology
|March 11, 1998
Abstract:
We report a case of papillary tubular adenoma, arising on the knee joint. The overall histologic structure of the tumor is consistent with that of papillary tubular adenoma with slight interluminal papillary changes, but most of the tumor cells present vacuolization outlined by carcinoembryonic antigen staining, suggesting that this adenoma may have resulted from microlumen formation. This is, to our knowledge, the first reported case of a papillary tubular adenoma with marked tubular vacuolization.