RESUMEN
Myxoid neurofibroma is a histological variant of neurofibroma and represent a conventional neurofibroma with extensive deposition of stromal mucin. Myxoid neurofibroma may present as a sporadic lesion or in the context of neurofibromatosis I. The most common locations of the myxoid neurofibroma are the face, shoulders, arms, periungual area and in the feet. To the best of our knowledge, location in an inguinal area has been rarely reported. We report a case of a 37-year-old man with a solitary myxoid neurofibroma in the right inguinal area.
Asunto(s)
Adulto , Humanos , Brazo , Pie , Mucinas , Neurofibroma , Neurofibromatosis 1 , HombroRESUMEN
Myxoid neurofibroma is a benign tumor of perineural cell origin, which is demonstrated with a positive immunohistochemical stainig for S-100. The most common locations of the myxoid neurofibroma are face, shoulder, arm, periungual and foot. We experienced an unusual case of myxoid neurofibroma which originated from labia majora area then reported it. To our knowledge, this is the first time that a labia majora location is reported.
Asunto(s)
Brazo , Pie , Neurofibroma , HombroRESUMEN
Myxoid neurofibroma is a benign tumor of perineural cell origin, which is demonstrated with a positive immunohistochemical stainig for S-100. The most common locations of the myxoid neurofibroma are face, shoulder, arm, periungual and foot. We experienced an unusual case of myxoid neurofibroma which originated from labia majora area then reported it. To our knowledge, this is the first time that a labia majora location is reported.
Asunto(s)
Brazo , Pie , Neurofibroma , HombroRESUMEN
We report a case of a 32-year-old woman with a myxoid neurofibroma occurring on the hyponychium of the 4th finger following repeated laceration. The tumor was histologically determined to be a myxoid neurofibroma. Myxoid neurofibroma may present as a sporadic lesion or in the context of neurofibromatosis 1. Although there is no predilection site of solitary lesion, occurrence on the hyponychium is rare. We report a case of solitary neurofibroma on the hyponychium of the 4th finger following repeated laceration.
Asunto(s)
Adulto , Femenino , Humanos , Dedos , Laceraciones , Neurofibroma , Neurofibromatosis 1RESUMEN
A case of nerve sheath myxoma also called as neurothekeoma in a 33-year-old woman is described. The lesion appeared as a painful, elevated nodule on the scalp for several months, without an appreciable increase in size. Microscopically, it showed typical histologic characteristics of nerve sheath myxoma, and tumor cells revealed strong, positive reaction for S-100 protein and negativity for epithelial membrane antigen (EMA) on immunohistochemical staining. These immunohistochemical findings of this case support the view that the origin cells of this tumor may be schwann cells rather than perineurial cells. The histogenesis and differential diagnosis of this tumor are discussed.