AN UNUSUAL EPITHELIAL-CONNECTIVE TISSUE NAEVUS WITH PERIFOLLICULAR MUCINOSIS*

Two pigmented lesions (one on each cheek of an adolescent boy) have been examined histologically on two occasions at an interval of eighteen months. The lesions had appeared following exposure to strong sunlight. Epithelial thickening with increased pigmentation, perifollicular mucin, absence of sebaceous glands and increased elastic tissue were found. Some comments are offered to explain these changes. It appears that the lesions are of naevoid origin.