+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Trichilemmal cysts. Ultrastructural similarities to the trichilemmal sac

Trichilemmal cysts. Ultrastructural similarities to the trichilemmal sac

Dermatologica 157(3): 164-170

Recently experienced cases of trichilemmal cysts were studied by light and electron microscopy. Although ultrastructural findings in the present case were basically consistent with those reported in the literature, they were in contrast to them in some important respects: (1) a few, oval and small-sized keratohyalin and a large number of membrane-coating granules were observed in the cytoplasm of keratinizing cells beneath the keratinized cells and (2) the junctional structure between the keratinized cells and the keratinizing cells beneath them showed interdigitation. From these findings, it is shown that trichilemmal cysts have close similarities to and might be derived from the trichilemmal sac surrounding the lower end of the catagen or telogen hair.

(PDF 0-2 workdays service: $29.90)

Accession: 006840882

Download citation: RISBibTeXText

PMID: 680300

Related references

Development of a malignant proliferating trichilemmal cyst in a patient with multiple trichilemmal cysts. Dermatologica 166(4): 203-208, 1983

Malignant proliferating trichilemmal tumor arising in multiple trichilemmal cysts. Annals of Plastic Surgery 43(5): 575-576, 1999

Extensive and ulcerated malignant proliferating trichilemmal (pilar) tumour, arising from multiple, large, degenerated trichilemmal (pilar) cysts. Bmj Case Reports 2016: -, 2016

A DNA-flow cytometric analysis of trichilemmal carcinoma, proliferating trichilemmal cyst and trichilemmal cyst. Acta Dermato-Venereologica 74(5): 358-360, 1994

Ultrastructural characteristics of trichilemmal cysts. Journal of Investigative Dermatology Symposium Proceedings 8(1): 151, June, 2003

Ultrastructural characteristics of trichilemmal cysts: Report of two cases. Medical Electron Microscopy 34(2): 134-141, June, 2001

An electron microscopic study of a proliferating trichilemmal cyst and a trichilemmal carcinoma. Medical Electron Microscopy. 29(3-4): 118-123, 1996

Carcinoma arising in a proliferating trichilemmal cyst expresses fetal and trichilemmal hair phenotype. American Journal of Dermatopathology 24(4): 340-344, 2002

Trichilemmal keratinization a causal factor in loosening the murine telogen club hair from the trichilemmal sac. Journal of Anatomy 138(4): 745-756, 1984

Malignant proliferative trichilemmal tumor A morphologic, DNA ploidy, and immunohistochemical comparison to selected trichilemmal tumors. Modern Pathology 7(1): 44A, 1994

A trichilemmal carcinoma arising from a proliferating trichilemmal cyst: a response. Human Pathology 30(2): 247-248, 1999

A trichilemmal carcinoma arising from a proliferating trichilemmal cyst: The loss of the wild-type p53 is a critical event in malignant transformation. Human Pathology 29(2): 193-195, 1998