Erythematous nodules localized to the plantar surfaces in children occur occasionally, and the diagnosis of these lesions may be challenging to the clinician. Among the possible causes for isolated unilateral and bilateral blanchable erythematous nodules on the plantar surfaces in children are erythema nodosum, delayedpressure urticaria, cellulitis, and inflamed epidermoid cysts.1-4 Hern and Schwayder1 recently reported the first documented case of erythema nodosum localized to the plantar surfaces.1 We describe two additional children with isolated plantar erythema nodosum.
Report of a Case
Red, painful nodules developed in a 6-year-old boy 2 weeks after an upper respiratory tract infection. No cough, sore throat, nausea, vomiting, or diarrhea was present. No medications had been administered. Findings from his physical examination revealed six tender erythematous 1-cm nodules on the distal instep of both feet (Figure 1). Otherwise, the findings were unremarkable. Histopathologic examination of lesional tissue revealed
Suarez SM, Paller AS. Plantar Erythema Nodosum: Cases in Two Children. Arch Dermatol. 1993;129(8):1064-1065. doi:10.1001/archderm.1993.01680290140030