Table of Content


Winter 2019, Vol. 27 No. 4

Hong Kong J. Dermatol. Venereol. (2019) 27, 198

Dermato-venereological Quiz

Dermato-venereological Quiz

FC Ip 葉方正


A new born baby girl was consulted for a birthmark noted at birth. The baby was born full term by normal spontaneous delivery. The prenatal history was unremarkable. The left sided abdominal wall was noted to have a violaceous patch at birth, blanchable and no palpable mass lesion underlying (Figure 1). Otherwise the baby was healthy and physical examination revealed no other abnormality, in particular cardiovascular and abdominal examination was normal.

Figure 1


  1. What are the differential diagnoses?
  2. What investigations would you consider?
  3. What is the most likely diagnosis?
  4. What is the management?