A primary dorsal osseous Ewing’s sarcoma hidden as acute paraplegia in a 7-year child: A Case report: Dorsa Ewing’s sarcoma as an acute paraplegia

  Ewing’s sarcoma is a highly malignant bone tumor commonly affecting diaphysis of long bones & pelvic bones. It belongs to a spectrum of neoplastic disease known as the Ewing sarcoma family of tumors (EFT) that have the same histologic, immunohistochemical characteristics and chromosomal translocation. It commonly affects children between the ages of 5-15 years. Spinal involvement might be primary or metastatic. Primary spinal involvement is very rare. We report a 7-year female with acute paraplegia caused by dorsal osseous Ewing’s sarcoma that her presentation mimics other causes of acute lower limb weakness in children.  Early detection of this rare case and prompt treatment will ensure better outcomes for the patient.&nbsp

Marginal Zone B-cell Lymphoma of the Gasserian Ganglion: Case Report and Review of the Literature

Primary central nervous system lymphoma (PCNSL) is a rare subtype of extranodal non-Hodgkin's lymphoma that accounts for 4% of newly diagnosed central nervous system (CNS) tumors. Most primary lymphomas of the central nervous system are of the subtype of diffuse large B-cell lymphomas, which have highly aggressive behavior and may involve the brain, leptomeninges, eyes or spinal cord without evidence of systemic disease. Primary CNS lymphomas are very rare in immunocompetent patients, but their rates are increasing. So far, only 11 primary Gasser ganglion lymphomas have been reported, with an incidence of 2.5 cases per 30,000,000 inhabitants. However, B cell lymphomas of the marginal zone of the Gasserian ganglion have been very rarely reported. We report here a clinical presentation characteristic of B cell lymphoma of the marginal zone of the Gasser ganglion in an immunocompetent patient who was treated with surgery and radiotherapy, evolving with improvement of symptoms and without recurrence in 3 months of follow-up