Rhabdomyosarcoma with Bone Marrow Infiltration Mimicking Hematologic Neoplasia. Case Report

Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in children younger than 15 years. According to the World Health Organization, there are embryonal, alveolar and pleomorphic types of RMS. Most RMS patients present with a tumor mass in the head and neck region, urogenital tract or lower extremities. Unusual clinical presentation of the disease with massive bone marrow infiltration at the disease onset and mimicking hematologic neoplasm is rarely seen.