Keratoacanthoma‐Like Growths of Incontinentia Pigmenti Successfully Treated with Intralesional Methotrexate |
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| Authors: | Brittany Barros M.D. Klaus Helm M.D. Andrea Zaenglein M.D. Elizabeth Seiverling M.D. |
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| Affiliation: | 1. Department of Dermatology, Pennsylvania State University, Hershey, Pennsylvania;2. Department of Pathology, Pennsylvania State University, Hershey, Pennsylvania;3. Department of Pediatrics, Pennsylvania State University, Hershey, Pennsylvania |
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| Abstract: | We report the case of a 17‐year‐old girl with incontinentia pigmenti who developed multiple large hyperkeratotic tumors within Blaschkoid hyperpigmented patches on her left leg. Biopsy demonstrated an endoexophytic nodule with irregular invaginations of keratinizing squamous epithelium and a central keratin‐filled crater, consistent with keratoacanthoma‐like lesions of incontinentia pigmenti. The tumors were successfully treated with intralesional methotrexate. |
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