TRICHOLEMMAL CARCINOMA - CLINICOPATHOLOGICAL STUDY OF 10 CASES

被引:62
作者
SWANSON, PE
MARROGI, AJ
WILLIAMS, DJ
CHERWITZ, DL
WICK, MR
机构
[1] UNIV LEEDS, DEPT PATHOL, LEEDS LS2 9JT, W YORKSHIRE, ENGLAND
[2] MINNEAPOLIS VET MED CTR, DEPT PATHOL, MINNEAPOLIS, MD USA
[3] WASHINGTON UNIV, SCH MED, LAUREN V ACKERMAN LAB SURG, ST LOUIS, MO 63110 USA
关键词
D O I
10.1111/j.1600-0560.1992.tb01350.x
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Tricholemmal carcinoma (TLC) is a cutaneous adnexal tumor with presumed external hair sheath differentiation. In order to better understand the salient features of this neoplasm, we analyzed the histologic and clinical findings in 10 cases of TLC. Eight patients were males, and two were female; they ranged in age from 55-88 years. Each tumor occurred in hair bearing, sun-exposed skin, and involved the scalp, face, trunk, or upper extremities. The lesions were usually slightly raised, pale tan or reddish, and keratotic; were usually present for less than 1 year; and measured 0.4-2.0 cm. All of them were treated by wide local excision; neither recurrence nor metastasis was reported after 11 to 92 months of clinical followup. Histologically, each TLC was composed of a lobular proliferation centered on the pilar apparatus. Cells with glycogen-rich, mucin-negative, clear or pale eosinophilic cytoplasm predominated. Brisk mitotic activity (4-39 mitoses per 10 high power fields) was typical. Involvement of the interfollicular epidermis was invariably noted, with superficial ulceration in seven tumors. Transitional zones between TLC and the adjacent epidermis were not seen, although pagetoid spread occurred in two examples. Invasion of reticular dermis was present in eight cases, with infiltration to mid-dermis in five TLC. All tumors exhibited areas of tricholemmal type keratinization; dyskeratotic cells were noted in six examples. Hyperkeratosis and parakeratosis were variably present as well. Actinic damage was a constant feature. Despite local invasion at diagnosis, the clinical course of TLC was indolent in all cases.
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页码:100 / 109
页数:10
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