Diagnosis: Trichostasis spinulosa
Description: Sections show a number of vellus hair shafts within a dilated and keratin plugged follicle
Clinical Features: Follicular plugging
Pathology/Site Features: Follicular plugging
Sex: F
Age: 55
Submitted By: Ian McColl
Differential DiagnosisHistory: 4757mv This lady has scattered commedo like lesions on her lower abdominal wall. The dermoscopy image suggests trichostasis spinulosa.
Description: Dilated follicle containing several vellus hairs
Comments: Sections show a number of vellus hair shafts within a dilated and keratin plugged follicle. Only one papilla is present at the base of the hair follicle. The changes present are those of trichostasis spinulosa.