Dermatological signs

Frequently asked Dermatological signs

•Asboe Hansen Sign (Bulla Spread Sign): Pemphigus

• Carpet Tack sign:  DLE

•Cerebiform Tongue sign: Pemphigus Vegitans

•Coup D Lounge sign: Tinea Versicolor

•Crowe sign: Axillary freckling in Neurofibromatosis

•Fitzpatrick sign: Dermatofibrosarcoma Protuberans

•Dubios sign: Congenital syphilis

•Hertoghes sign: Loss of lateral 1/3 of eyebrow in Atopic Dermatitis

•Leser Trelat sign: Appearance of large number of Seborrheic keratoses

•Ollendroff sign: Tender papule in Secondary syphilis

•Pillow sign: Patient sees hair on pillow on getting up at morning. (ALOPECIA)

• Shawl sign: Erythema overback and shoulders in  Dermatomyositis

•Pseudomonas in ‘ Hot-tub folliculitis’

•Pseudomonas in  ‘Ecthyma gangrenosum’

•HSV (Herpes simplex virus) on the head and neck of young wrestlers ‘Herpes gladiatorum’

•HSV Eczema

•HSV (Herpes simplex virus)  on the digits of health care workers ‘Herpetic whitlow’

•‘Impetigo contagiosa’ is caused by Strep Pyogenes

•‘Bullous impetigo’ is due to S aureus

•‘Swimmer’s itch’ in skin surface is exposed to water infested with freshwater avian schistosomes.

•‘Bacillary angiomatosis’ by Bartonella henselae.

•‘Verruca peruana’ is caused by Bartonella bacilliformis

•Human papillomavirus may cause singular warts ‘verruca vulgaris’

•Human papillomavirus with warts in the anogenital area ‘condylomata acuminata’

•‘Erysipelas is due to Strep Pyogenes

• Mycobacterium leprae  may be associated with cutaneous ulcerations in patients with lepromatous leprosy related to  ‘Lucio’s phenomenon’

•‘Cellulitis’ may be caused by indigenous flora colonizing the skin and appendages  by  S aureus and S pyogenes

• ‘Necrotizing fasciitis’, formerly called streptococcal gangrene, may be associated with group A Streptococcus or mixed aerobicanaerobic bacteria  or may occur as part of gas gangrene caused by Clostridium perfringens.