Unusual case of recurrent extraneural metastatic medulloblastoma in a young adult: durable complete remission with Ewing sarcoma chemotherapy regimen and consolidation with autologous bone marrow transplantation and local radiation

Medulloblastoma with soft-tissue and skeletal metastases in an adult: A case report

Medulloblastoma (MB) is a highly malignant primary brain tumor, which occurs in the cerebellum or posterior cranial fossa. MB is most commonly identified in children <10 years of age. The disease is rare in adults, affecting patients aged between 30 and 50 years of age, with an incidence of 0.5 cases per 1,000,000 individuals. Extraneural metastases are reported in 7-10% of cases, most commonly involving the bones and more rarely involving the lymph nodes, visceral organs and bone marrow. The current study presents the case of a 36-year-old male who underwent a gross total resection followed by radiation therapy to the craniospinal axis for the treatment of MB. The patient subsequently developed widespread metastasis, which involved the soft tissue of the occipital bone. Subsequently, the patient was administered palliative radiotherapy and initially exhibited a good clinical response. However, the patient succumbed at 18 months post-diagnosis due to dissemination of the disease. The literature on the extraneural metastasis of MB is also reviewed in the current study.

A case of early extraneural medulloblastoma metastases in a young adult

Extraneural metastases are a relatively rare manifestation of the primary brain tumors, and a major part of the cases has been associated with initial medulloblastoma. Herein, we present the case of a young female adult diagnosed and operated for medulloblastoma. The patient developed extraneural metastases in the first postoperative year. The condition exhibited an aggressive course of development, and the applied treatment approaches were unable to halt its progression. A short literature review identifies the predictive factors determining both prognosis and treatability of the condition; the current limitations and future perspectives of the treatment options are discussed.