Abstract
Hobnail hemangioma on the knee: A rare entity
Highlights
Samia Mrabat1, Zakia Douhi1, Sara Elloudi1, Hanane Baybay1, Fatima Zahra Mernissi1, Amal Douida2, Layla Tahri Elousrouti2, Hinde El Fatemi2
A skin biopsy, performed on the knee,showed irregularly dilated vascular structures in the superficial and middermis lined by prominent hobnail endothelial cells
Hobnail hemangioma (HH) is a benign vascular lesion showing peculiar endothelial cells’ morphology, confined to the superficial and mid dermis. It was first described as targetoid hemosiderotic hemangioma in 1988 [1]
Summary
Samia Mrabat1, Zakia Douhi1, Sara Elloudi1, Hanane Baybay1, Fatima Zahra Mernissi1, Amal Douida2, Layla Tahri Elousrouti2, Hinde El Fatemi2. Corresponding author: Dr Samia Mrabat, E-mail: samiamrabat91@gmail.com A 8-year-old girl presented with a 4-year history of a single, asymptomatic plaque on the knee. The lesion started as an erythematous papule and later gradually increased in size. Cutaneous examination revealed a single non-tender oval plaque of 2x2 cm, present on the right side of the knee (Fig. 1).The plaque had a violaceous center and brownish hue at the periphery, giving a targetoid appearance.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
