| Trichilemmal keratosis (horn): a light and electron microscopic study. | |
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MedLine Citation:
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PMID: 6188767 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Three cases of trichilemmal keratosis (horn) were light microscopically examined and all showed numbers of U- or V-shaped epidermal proliferations which keratinized in a fashion either identical or similar to trichilemmal keratinization. Electron microscopy revealed both uneven and linear borders between the keratinized and the keratinizing cells with a few keratohyalin droplets, remnants of desmosomes, no marginal band in the horny layer, perinuclear vacuolation, few spherical bodies in the intercellular spaces (ICS) of the upper epidermis, and widening of the ICS of the lower epidermis. A number of electron dense spherical particles, 40-50 nm in diameter, were observed in nuclei of the upper epidermis. This suggests that ultrastructure of trichilemmal keratosis is similar rather to viral warts than to trichilemmal cysts, although there are close similarities between trichilemmal keratosis and cyst. |
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Authors:
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S Kimura |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Journal of cutaneous pathology Volume: 10 ISSN: 0303-6987 ISO Abbreviation: J. Cutan. Pathol. Publication Date: 1983 Feb |
Date Detail:
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Created Date: 1983-06-10 Completed Date: 1983-06-10 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0425124 Medline TA: J Cutan Pathol Country: DENMARK |
Other Details:
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Languages: eng Pagination: 59-67 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Cysts / ultrastructure Desmosomes / ultrastructure Diagnosis, Differential Epidermis / analysis, pathology Epithelium / analysis, pathology Humans Keratins / analysis Keratosis / pathology* Male Middle Aged Skin / pathology*, ultrastructure Skin Diseases / pathology Skin Neoplasms / pathology |
| Chemical | |
Reg. No./Substance:
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68238-35-7/Keratins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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