Clear cell Hidradenoma, benign tumor, is a large variety of sweet gland tumors which
have been described, studied and classified in various way because of histological origin
in this tumor.
Recent progress in this field of investigation, this tumor comparison with the normal
structure of the skin appendages using histochemical and electron microscopic methods
is originated from eccrine sweat gland.
Microscopically, the general configularion of this tumor is composed of epithelial cells
of two types ana presence of occasional tubular lumina lined by glandular epithelium.
Therefore the most appropriate name for this distinct cutaneous neoplasm is probably
Clear cell Hidradenoma.
Also, this tumor is important to differential diagnosis with tumor arising in other
adnexal structures, metastatic renal cell carcinoma and primary squamous cell carcinoma
of the skin.
Authors are experienced of three cases of Clear cell Hidradenoma on the skin of scalp,
chest wall and thigh, respectively, from may 1973 to July 1979 on the Han Yang
University Hospital.
Several histogenetic theories and world's literature are reviewed.
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