Post-traumatic lip lesion mimicking rhabdomyomatous mesenchymal hamartoma in a pediatric patient
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Data
2020-11-01
Autores
Jiménez Polanco, Xiomara Beatriz
Torres, Carolina Paes
Silveira, Heitor Albergoni [UNESP]
Almeida, Luciana Yamamoto [UNESP]
Bezerra Segato, Raquel Assed
León, Jorge Esquiche
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Resumo
We report a 7-year-old boy who presented with a nodule on the upper lip. A previous clinical history of mechanical trauma in the lesional area had been noted. After surgical excision, microscopy revealed fibrocollagenous fascicles associated with neurovascular bundles and skeletal striated muscle fibers in diffuse subepithelial distribution, suggesting rhabdomyomatous mesenchymal hamartoma. However, strict clinicopathological correlation favored a healing process with trapped striated skeletal muscle tissue. After three years of follow-up, an improvement in the aesthetic appearance of the upper lip was observed. To the best of our knowledge, a case of pseudo-rhabdomyomatous mesenchymal hamartoma has not been reported to date.
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Palavras-chave
Hamartoma, Immunohistochemistry, Lip, Oral diagnosis, Pediatric dentistry
Como citar
Dermatology Online Journal, v. 26, n. 11, 2020.