Folliculosebaceous cystic hamartoma(FCH) is a rare tumor of characteristic clinical and histological features. Histological findings are intradermal cystic structures lined by infundibular epithelium, numerous sebaceous lobules radiating from cystic structures and surrounding stroma composed of mesenchymal changes including variable proportions of fibrous, adipose, vascular and neural tissues. We describe a case of FCH associated with perifollicular mucinosis, which is unusual finding. (Korean J Dermatol 1999;37(5): 688-690)