Schwannomas are tumors that appear in the sheath that surrounds the nerves; they are formed of Schwann cells which form the myelin sheath in peripheral nerves. In this document, we report a case of Schwannoma of the dorsal nerve of the penis in a man 40-year-old male with no history of neurofibromatosis. Despite the abundant innervation of the penis, it is rare to find them in this location with < 50 cases reported in the literature. Its diagnosis is integrated based on physical examination and supported by imaging. The definitive diagnosis is obtained with histopathology with immunohistochemistry.
La leiomiomatosis benigna metastatizante es una enfermedad muy poco frecuente con menos de 200 casos reportados en la literatura. Se trata de una rara variante proliferativa de fibras musculares lisas en lugares alejados al útero en pacientes con antecedente de histerectomía, siendo el pulmón el sitio más frecuente de estas. Estos tumores suelen ser de crecimiento lento y de pronóstico favorable, sus manifestaciones clínicas están en función del sitio que involucren, el número y el tamaño de los tumores. El tratamiento quirúrgico suele ser curativo.
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