The presence of occipital hair in the pilonidal sinus cavity-a triple approach to proof

International Journal of Colorectal Disease
Dietrich DollMarkus M Luedi

Abstract

Hair in the pilonidal sinus is not growing within the sinus cavity, as hair follicles are not present there. Not few pilonidal patients do not have intergluteal hair, which is said to be the causative agent of folliculitis and pilonidal genesis. So, what is the real source of the hair forming the typical pilonidal hair nest? A trifold approach was used: First, axial hair strength testing of pilonidal hair and body hair harvested from head, lower back (glabella sacralis), and cranial third of intergluteal fold. Hair strength match was compared clinically. Second, comparative morphological examination by expert forensic biologist of hair from sinus and dorsal body hair. Third, statistical Bayesian classification of every single sinus hair based on its strength was done to determine the most probable region of origin. Using clinical hair strength comparison, in 13/20 patients, head hair is the stiffest hair, followed by intergluteal hair. Only in 6/20 patients, this is the case with hair from the glabella sacralis. According to comparative morphological comparison, a minimum of 5 of 13 hair nests with possible hair allocation examined contain hair from the occiput. In 5/18 nests, hair could not be determined to a specific location...Continue Reading

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Citations

May 17, 2019·Diseases of the Colon and Rectum·Dietrich Doll, Markus M Luedi
Oct 24, 2019·Scientific Reports·Dietrich DollMarkus M Luedi
Dec 19, 2020·Zentralblatt für Chirurgie·Sven PetersenDietrich Doll
Mar 20, 2021·Scientific Reports·Dietrich DollMarkus M Luedi
Nov 11, 2019·Journal of Pediatric Surgery·Dietrich Doll, Markus M Luedi

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