An Unusual Birthmark on the Scalp: A Quiz

• Yue-Tong Qian,
• Jin-Yuan Ma,
• Sergio Vano-Galvan,
• Jia-Wei Liu,
• Wei Liu,
• Dong-Lai Ma

Affiliations

Yue-Tong Qian

Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730 Beijing, China.

Jin-Yuan Ma

Sergio Vano-Galvan

Jia-Wei Liu

Wei Liu

Dong-Lai Ma