Diagnosis: Follicular Mucinosis
Description: Note the thickening of the forearm with the prominent dilated follicles
Morphology: Follicular plugging
Site: Arm,forearm
Sex: M
Age: 56
Type: Clinical
Submitted By: Ian McColl
Differential DiagnosisHistory:
Follicular muninosis usually involves the face, neck or scalp and particularly the eyebrows where mucin deposition leads to loss of hair. The follicles usually are blocked by a horny plug but pressure can lead to clear mucin extrusion. Watch for secondary follicular mucinosis occuring with an underlying T cell lymphoma.