Indian Dermatology Online Journal

CASE REPORT
Year
: 2020  |  Volume : 11  |  Issue : 3  |  Page : 401--403

Lichen simplex chronicus on the scalp: Broom fibers on dermoscopy; gear wheel sign and hamburger sign on histopathology


Sandip Agrawal, Rachita Dhurat, Smita Ghate, Aseem Sharma, Ravina Surve, Sanober Daruwalla 
 Department of Dermatology, Lokmanya Tilak Municipal Medical College and General Hospital, Sion, Mumbai, Maharashtra, India

Correspondence Address:
Aseem Sharma
Department of Dermatology, OPD 16, LTM General Hospital, Sion, Mumbai - 400 022, Maharashtra
India

Lichen simplex chronicus (LSC) is characterized by lichenification of the skin because of primary excessive scratching. Herein, we present two cases of scalp LSC with a patch showing localized hair loss and paroxysmal severely itching on that area. Dermoscopy examined the presence of broom hair fibers while histopathological examination revealed gear wheel sign, hair shafts split in two (the hamburger sign), and decrease in the size of the sebaceous glands.


How to cite this article:
Agrawal S, Dhurat R, Ghate S, Sharma A, Surve R, Daruwalla S. Lichen simplex chronicus on the scalp: Broom fibers on dermoscopy; gear wheel sign and hamburger sign on histopathology.Indian Dermatol Online J 2020;11:401-403


How to cite this URL:
Agrawal S, Dhurat R, Ghate S, Sharma A, Surve R, Daruwalla S. Lichen simplex chronicus on the scalp: Broom fibers on dermoscopy; gear wheel sign and hamburger sign on histopathology. Indian Dermatol Online J [serial online] 2020 [cited 2020 Jul 10 ];11:401-403
Available from: http://www.idoj.in/article.asp?issn=2229-5178;year=2020;volume=11;issue=3;spage=401;epage=403;aulast=Agrawal;type=0