Document Detail


Cytokeratin expression of apocrine and eccrine poromas with special reference to its expression in cuticular cells.
MedLine Citation:
PMID:  10917164     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: There are no immunohistochemical studies on cytokeratin (CK) expression in large series of cases of apocrine poroma. In addition, detailed immunohistochemical analysis of cuticular cells, a specific type of constituent cells of poromas, has not been reported. METHODS: Using the avidin-biotin method, we compared immunostaining patterns of eleven different anti-CK antibodies in 12 cases of apocrine and 21 cases of eccrine poromas, and normal adult skin. RESULTS: Poroid cells were exclusively positive for CK1/5/10/14, CK5/8 and CK14, which were expressed in the outer cells of normal dermal sweat ducts. Poroid cells were heterogeneously stained with anti-CK7, CK8/18, CK 10/11 and CK19 antibodies, which reacted in the inner cells of dermal ducts and in the secretory cells of sweat glands. The cuticular cells showed constant expression of CK1/5/ 10/14 and CK10/11, and various expression patterns of CK5/8, CK6, CK7, CK14, CK8/18, CK17, and CK19. CONCLUSIONS: Based on the keratin immunohistochemistry, the neoplastic cells in eccrine and apocrine poromas are considered to be closely related to the cells of dermal sweat ducts. Also the cuticular cells are considered to occupy an intermediate spectrum between the inner and outer cells of the dermal ducts. Although it is difficult to differentiate apocrine poroma from eccrine poroma by keratin expression patterns alone, the data obtained here can be helpful in differentiation of apocrine poroma from other hair follicle-related neoplasms.
Authors:
O Yamamoto; M Hisaoka; H Yasuda; T Kasai; H Hashimoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cutaneous pathology     Volume:  27     ISSN:  0303-6987     ISO Abbreviation:  J. Cutan. Pathol.     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-11-09     Completed Date:  2000-12-07     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0425124     Medline TA:  J Cutan Pathol     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  367-73     Citation Subset:  IM    
Affiliation:
Department of Dermatology and Occupational Dermatopathology, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu. yamasam@med.uoeh-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Acrospiroma / metabolism,  pathology*
Adolescent
Adult
Aged
Aged, 80 and over
Apocrine Glands / chemistry,  pathology*
Eccrine Glands / chemistry,  pathology*
Female
Hair Follicle / chemistry,  pathology
Humans
Immunohistochemistry
Keratins / analysis,  biosynthesis*
Male
Middle Aged
Skin / chemistry,  pathology
Sweat Gland Neoplasms / metabolism,  pathology*
Chemical
Reg. No./Substance:
68238-35-7/Keratins
Comments/Corrections
Erratum In:
J Cutan Pathol 2001 Jan;28(1):55

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