27 June 2019 : Case report
Unusual clinical course, Challenging differential diagnosis, Educational Purpose (only if useful for a systematic review or synthesis)Anne-Marie Langlois1E, Abdullah K. Alarfaj2EF, Aziz Sagga2B, J. Max Findlay2G, Sumit Das34DEF*
Am J Case Rep 2019; 20:914-919
BACKGROUND: Gliosarcoma (GS) is a rare variant of glioblastoma (GBM), which is typically seen in patients age 40–60 years and located in the supratentorial region. We present an unusual case of GS in a young patient with an unusual presentation, which eventually led to the finding of this neoplasm.
CASE REPORT: Our patient was a 38-year-old woman originally from the Philippines who was transferred to our institution with an isolated left foot drop that developed over the course of several months. Subsequent neuroimaging revealed an extensive mixed cystic and solid mass in the posterior mesial right frontal lobe. Subtotal surgical resection revealed a multi-lobed tumor with a malignant glioma-like surface component overlying a smooth, well-encapsulated, avascular, sarcoma-like component. Neuropathologic examination of the resected tumor revealed a biphasic histologic pattern of predominantly sarcomatous components with fewer adjacent-area glial components. Post-operatively, the patient was left with a mild worsening of left leg segmental strength. She was referred to our neurooncologist colleagues for adjuvant treatment options.
CONCLUSIONS: Our case is unique in that it represents a rare neoplasm in a patient whose demographics are atypical for this type of tumor, as well as the unusual presentation of isolated foot drop.
Keywords: Gliosarcoma, Signs and Symptoms, young adult, Adult, Brain Neoplasms, Chemoradiotherapy, Adjuvant, Frontal Lobe, Peroneal Neuropathies, Philippines
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