To the Editor.—
Collagenoma or connective tissue nevi of the collagen type are hamartomatous lesions consisting of proliferation of normal collagen tissue. The lesions consist of slightly elevated nodules that may be grouped or disseminated. Collagenomas located in the plantar surface with a cerebriform pattern are rare and have been reported with other systemic alterations described as Proteus syndrome.1
Report of a Case.—
A 6-year-old white girl was referred to us for evaluation of two painless tumors on her left plantar surface. These lesions appeared at 2 years of age and had been growing up to the time of examination. There was no family history of similar lesions.On clinical examination a 2 × 1-cm lobulated, cerebriform mass was located on the central area of the left plantar surface. Another similar but smaller lesion could be observed at the base of the second and third metatarsian (Figure). Both lesions
Botella-Estrada R, Alegre V, Sanmartin O, Ros C, Aliaga A. Isolated Plantar Cerebriform Collagenoma. Arch Dermatol. 1991;127(10):1589–1590. doi:10.1001/archderm.1991.01680090155029
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