A Case of Membranous Fat Necrosis with Calcification in Lipoma / 대한피부과학회지

Membranous fat necrosis, an uncommon disorder, was first described by Nasu et al. in 1973. This is characterized by the presence of membranocystic foci in which cysts are lined by an eosinophilic homogeneous membrane with pseudo papillary luminal projections. We, herein, report a case of membranous fat necrosis with calcification in lipoma which developed on the abdomen of a 47-year-old woman. To our knowlege, this is the first report on membranous fat necrosis with calcification in lipoma, in Korea.

A Case of Atypical Progressive Cribriform and Zosteriform Hyperpigmentation / 대한피부과학회지

We report a case of atypical progressive cribriform and zosteriform hyperpigmentation (PCZH) in a 4-year-old boy. Progressive cribriform and zosteriform hyperpigmentation is a distinctive pigmentary disorder first described by Rower et al. in 1978. It is characterized clinically by uniformly tan cribriform macular pigmentation in a zosteriform distribution and histopathologically by increased melanin in the basal cell layer and absence of nevus cells. This case has two distinctive findings; the onset age was below 10 years and the lesions distributed on the whole body along Blaschko's lines. Histopathologic examination showed pigmentary incontinence.

A Case of Hair Follicle Nevus Associated with Accessory Tragus / 대한피부과학회지

Hair follicle nevus is a rare hamartoma that has numerous tiny but mature hair follicles with thick fibrous root sheaths. It occurs on the face at or after birth. It must be differentiated from accessory tragus by clinical and histological findings. We herein report a unique case of a hair follicle nevus that may be associated with an accessory tragus on the face of a neonate.