RESUMO
Low-grade myofibroblastic sarcoma (LGMS) is a rare, malignant tumor with myofibroblastic differentiation. Despite it being classified as a distinct entity by the World Health Organization, a few cases were reported in the oral and maxillofacial region. Here, a LGMS developed on the palate of a 73-year-old man who presented with a 1-cm tumor on the posterior border of the palate. Based on the histological and immunohistochemical features, a diagnosis of LGMS was established. The tumor was resected, and no recurrence was observed over 2 years. Although the tongue is the most preferred site for LGMS, it may occur in any region of the oral cavity.
Assuntos
Idoso , Humanos , Masculino , Miofibroblastos , Patologia , Osteossarcoma , Patologia , Cirurgia Geral , Neoplasias Palatinas , Patologia , Cirurgia Geral , Palato Duro , PatologiaRESUMO
Normal human development requires the precise functioning and coordination of many complex pathways. Abnormalities in these signaling cascades often result in developmental perturbations, giving rise to congenital anomalies and cancers. There are 21,787 genes in each human nucleus, different gene subsets are expressed in different cell types, and different gene networks make different signal cascades. Among a large number of genes, in this review, we describe signaling disorders of sonic hedgehog and its receptor, patched-1; Tie2; fibroblast growth factor receptor in craniofacial anomalies and oral cancers.