Wojciech Biernat(1), Stanislaw Biernat(2)

Ductal Sebaceoma (Sebomatricoma)

1)Department of Tumour Pathology, Chair of Oncology, Medical University,
2)Department of Pathology, MSW Hospital, Lodz

Abstract

We present a case of an unusual tumour arising in the forehead of a 52-year-old female. The tumour, diagnosed as sebaceoma (or sebomatricoma), showed predominantly differentiation towards ductal portion of the sebaceous gland. It was marked in tissue sections as areas of "poroid" cells and the tumour required differentiation from poroma. Focal areas of necrosis en masse in the present tumour contributed further to the differential diagnosis. As single multivacuolar sebocytes were found and no cuticular cells could be identified, the tumour was diagnosed as ductal sebaceoma (sebomatricoma). The aspects of morphological distinction between sebomatricomas and poromas are presented with its clinical implications.

Address for correspondence and reprint requests to:
W. Biernat M. D.,
Chair of Oncology,
Paderewski 4, 93-509 Lodz, Poland.
Tel.: +48 42 681 16 03,
Fax: +48 42 681 11 17,
E-mail: biernat@psk2.am.lodz.pl