Marco Antonio Olvera‐Olvera

Department of Surgical Pathology, UMAE Specialty Hospital N° 1, National Medical Center Bajío, Mexican Institute of Social Security, León, Guanajuato, Mexico

Publications

• Case Report   
  Paratesticular Malignant Ectomesenchymoma: An Unrecognized Entity Case Report
  Author(s): Saulo Mendoza-Ramírez*, Abril Trejo‐Caballero, Marco Antonio Olvera‐Olvera and Mario Murguia‐Perez*
  
  Malignant ectomesenchymoma is the malignant neoplasm that derives from this tissue; it is characterized by presenting differentiation of neuro-ectodermal and mesenchymal components. The mesenchymal component most of the time is rhabdomyosarcoma. We present the case of an 18-year-old man with a right paratesticular tumor and diffuse pulmonary nodules with probable metastatic activity. The initial diagnosis was a right paratesticular sarcoma with rhabdoid differentiation. By expanding the immunohistochemistry panel, the diagnosis of malignant ectomesenchymoma was confirmed. This tumor is rare and rapidly progressive; few cases have been described in the medical literature... Read More»
  

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