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Seborrheic Keratoses and Trichostasis Spinulosa
Author(s) -
KOSSARD STEVEN,
BERMAN ALEXANDER,
WINKELMANN R. K.
Publication year - 1979
Publication title -
journal of cutaneous pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 75
eISSN - 1600-0560
pISSN - 0303-6987
DOI - 10.1111/j.1600-0560.1979.tb01176.x
Subject(s) - vellus hair , keratin , hair follicle , seborrheic keratosis , pathology , dermatology , actinic keratoses , medicine , biology , scalp , basal cell
In 54 of 325 seborrheic keratoses, trichostasis spinulosa was found within the keratinous cysts and between papillomatous surface keratin, in addition to being present in contiguous hair follicles. Trichostasis in seborrheic keratoses and trichostasis spinulosa are both more frequent in older age groups. Trichostasis spinulosa represents a marker of vellus hair follicles and indicates that some seborrheic keratoses incorporate and may be partially derived from the cells of the infundibular portion of the follicle.