Ferreira-Marques reported1 a case of alopecia mucinosa in which sensory dysesthesia of a peculiar sort was demonstrated in the skin lesions. The patient felt light touch, pain, and cold less well in the lesions than in the adjacent normal skin, but perceived hot water (at 44-50 C) as hotter in the lesions than elsewhere.
A part of these observations has been confirmed in a case recently seen by me.
Report of Case
An 11-year-old Caucasian girl noticed an oval area of coarsely shagreen-like roughness and hypopigmentation of the skin of the right biceps region in June, 1961; but as it was neither itchy nor sore, she ignored it. After it had begun to get smoother, in early September, she reported to her father than she could not "feel" as well within this area as in the surrounding skin. Since they had been living in the Western Pacific area (on
ARNOLD HL. Dysesthesia in Alopecia MucinosaA Possible Diagnostic Sign. Arch Dermatol. 1962;85(3):409–410. doi:10.1001/archderm.1962.01590030107019