PMID- 8793667 OWN - NLM STAT- MEDLINE DCOM- 19961119 LR - 20220410 IS - 0303-6987 (Print) IS - 0303-6987 (Linking) VI - 23 IP - 3 DP - 1996 Jun TI - An objective measurement of the anchoring strength of anagen hair in an adult with the loose anagen hair syndrome. PG - 288-92 AB - A 21-year-old male presented with the life-long symptom of slowly growing, easily extractable hair lacking sheath remnants. The distribution and density of all his hair regions appeared normal and there was no alopecia. A hair-pull test was painless and resulted in all hairs being removed, all in keeping with a diagnosis of loose anagen hair syndrome (LAHS). The trichogram was normal. Electronically measured epilation revealed values which were significantly lower than controls. His hair follicles were remarkable for this syndrome in that they looked perfectly normal with light microscopy; however, the segment of the follicle with the keratogenous zone was significantly shorter than normal. It is postulated that a subtle intercellular defect must reside in the line of shear proximal to the level of cuticular differentiation to account for the weak anchoring of the root in the follicle. A consequence of a genetic error probably causes both the weak anchoring and the slow hair growth. FAU - Chapman, D M AU - Chapman DM AD - Department of Anatomy and Neurobiology, Dalhousie University, Nova Scotia, Canada. FAU - Miller, R A AU - Miller RA LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Cutan Pathol JT - Journal of cutaneous pathology JID - 0425124 SB - IM MH - Adult MH - Female MH - Hair Diseases/*pathology MH - Hair Follicle/pathology/ultrastructure MH - *Hair Removal/instrumentation/methods MH - Humans MH - Male MH - Microscopy, Polarization MH - Syndrome EDAT- 1996/06/01 00:00 MHDA- 1996/06/01 00:01 CRDT- 1996/06/01 00:00 PHST- 1996/06/01 00:00 [pubmed] PHST- 1996/06/01 00:01 [medline] PHST- 1996/06/01 00:00 [entrez] AID - 10.1111/j.1600-0560.1996.tb01481.x [doi] PST - ppublish SO - J Cutan Pathol. 1996 Jun;23(3):288-92. doi: 10.1111/j.1600-0560.1996.tb01481.x.