[Clinical and statistical study of 100 patients with vitiligo. II. Associated lesions].

A study of 100 cases of vitiligo showed the frequency of associated skin and visceral lesions. A skin disease was associated in 24 cases: psoriasis 4 cases, alopecia 4 cases, eczema 3 cases, malignant melanoma 2 cases, dermatitis herpetiformis 1 case, lichen planus 9 cases. However, only one case of Sutton's naevus was noted. Among other associations noted in 28 cases, there were 7 cases of thyroid disease, 5 cases of diabetes, 1 case of chronic rheumatoid arthritis and 3 gastric disorders. The frequency of these various associations was discussed in the light of other authors' reports. If one compares the 21 cases associated with auto-immune disease and the other cases of vitiligo, there was no significant difference for the various parameters studied. Thus the significance of the various biological signs of autoimmunisation remains doubtful and even the precise definition of vitiligo remains uncertain.