To the Editor.—
The article in the Archives (113:942-945, 1977) titled "Pemphigus Vegetans of Hallopeau," by Nelson et al was of great interest to me for three reasons. First is that classical examples of this condition are rare but readily recognizable; second is that the controversy as to its nosology has continued since Hallopeau1 first described the disease in 1869 and illustrated a case in the International Atlas of Rare Diseases of the Skin2; third pyodermite végétante has been associated with a particular subacute or "benign" type of ulcerative colitis that may not be clinically obvious or cause the patient to complain and that may only be determined by direct questioning of the patient on his bowel habits or by routine proctoscopy, double contrast barium enema, and rectal biopsy.The detection of this type of ulcerative colitis is important because although constitutional effects may be quite minimal, one
Forman L. Pemphigus Vegetans of Hallopeau. Arch Dermatol. 1978;114(4):627–628. doi:10.1001/archderm.1978.01640160093042
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