title: Dome-shaped papule with a bloody crust.
authors.affiliation: Department of Dermatology, Chinese People's Liberation Army General Hospital, Beijing, and 251st Hospital of Chinese PLA, Zhangjiakou City, China.
authors.forename: Li-Qiang
authors.initials: LQ
authors.lastname: Zheng
authors.affiliation: Department of Pathology, First Affiliated Hospital of Hebei North University, Zhangjiakou City, China.
authors.forename: Xiang-Chun
authors.initials: XC
authors.lastname: Han
authors.affiliation: Department of Dermatology, Chinese People's Liberation Army General Hospital, Beijing, China.
authors.forename: Cheng-Xin
authors.initials: CX
authors.lastname: Li
mesh_terms: D002610:Cheek; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D018859:Hair Follicle / Q000473:pathology; D006222:Hamartoma / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D012627:Sebaceous Glands / Q000473:pathology; D012878:Skin Neoplasms / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology