Dural lesions mimicking meningiomas: A pictorial essay

Abstract

The purpose of this essay was to illustrate the radiological and pathological findings in a wide spectrum of dural lesions mimicking meningiomas. Familiarity with and knowledge of these findings will narrow the differential diagnosis and provide guidance for patient management. In this pictorial review, we describe the following entities: Solitary fibrous tumors, hemangiopericytoma, gliosarcoma, leiomyosarcoma, dural metastases, Hodgkin's disease, plasmocytoma, Rosai-Dorfman disease, neurosarcoidosis, melanocytic neoplasms and plasma cell granuloma.

Marginal zone dural lymphoma: the Memorial Sloan Kettering Cancer Center and University of Miami experiences

“…Patients were identified through institutional databases at both sites and were included in this report if they met the following criteria: 1) clinical presentation of a dural mass and no evidence of primary parenchymal brain involvement, 2) brain imaging demonstrating an extra-axial mass arising from the dura mater, 3) pathologic confirmation of lymphoma, 4) primary neurological presentation. Our review identified twenty six patients with DL, five of whom were reported previously (1).…”

“…Due to their clinical and radiographical similarities to meningiomas or dural metastases, DLs are often misdiagnosed. (2, 4). Neuroimaging frequently identifies a single or multiple diffusely enhancing extra axial lesions with a dural tail (1).…”

Ekstraaksiyel Beyin Tumorleri

“…İçerisinde akım sinyalsiz (flow void) alanlar görülür. Geniş tabanı ile duraya tutunabilir veya dar pedinküllü olabilir [51]. Dural metastazlar menenjiomları taklit edebilir (Resim 9).…”

“…T2A görüntülerde izo-hipointenstir. İVKM sonrası diffüz kontrastlanır [51]. Çok sayıda olabilir ve leptomeninksleri tutabilir.…”

“…Kan-beyin bariyerinin olmaması nedeni ile yoğun, homojen kontrastlanma izlenir. Kontrast sonrası dural kuyruk bulgusu izlenebilir [51,70,71]. Lezyon tek ve dural kuyruk bulgusu mevcutsa radyolojik olarak menenjiomdan ayırt etmek mümkün olmayabilir.…”