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Primary intracranial leiomyosarcoma in an immunocompetent patient: Case report with emphasis on imaging features
Xiu-Li Li1, Jing Ren, Run-Ning Niu
1Department of Radiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
Rationale:
Primary intracranial leiomyosarcoma (LMS) is an extremely rare tumor in the central nervous system (CNS), and usually seen in immunocompromised individuals. Only a few cases of primary intracranial LMS have been documented in the literature and no study focused on their MRI findings. We reported a case of primary intracranial leiomyosarcoma in a immunocompetent patient and review its imaging features.
Patient Concerns:
A 20-year-old female was admitted to our hospital, complaining with nausea, weight loss and progressive headache in recent 2 years.
Diagnosis:
The magnetic resonance imaging scan of the brain revealed a large well-defined extra-cerebral mass adherent to left temporal meninges. The mass was iso-intense on T1-weighted images (T1WI), lightly iso to hypointense on T2-weighted images (T2WI) and enhanced uniformly with contrast medium. The preoperative diagnosis is meningioma.
Interventions:
A left craniotomy was performed for the complete resection of the mass.
Outcomes:
The lesion was diagnosed via surgical histopathology and immunochemistry as leiomyosarcoma. No evidence of recurrence and complications were found in the following 13 months.
Lessions:
Primary intracranial leiomyosarcoma which has some special MR imaging features should be considered in the differential diagnosis of intracranial tumor.
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