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Dural lesions mimicking meningiomas.
Mahlon D Johnson1, Suzanne Z Powell, Philip J Boyer
1Department of Pathology, Vanderbilt Medical School, Nashville, TN 37232, USA.
Human Pathology
|January 7, 2003
Summary
This review highlights rare tumors and conditions that can mimic meningiomas on imaging and during surgery. Recognizing these mimics is crucial for accurate diagnosis and appropriate patient management.
Area of Science:
- Neurosurgery
- Neuropathology
- Radiology
Background:
- Meningiomas are common primary brain tumors.
- Several neoplastic and nonneoplastic lesions can radiographically and clinically mimic meningiomas.
- These mimics may not be considered in the differential diagnosis due to infrequent occurrence and intraoperative resemblance to meningiomas.
Purpose of the Study:
- To review newly recognized and notable lesions that mimic meningiomas.
- To increase awareness of differential diagnoses for suspected meningiomas.
- To facilitate intraoperative recognition and potentially avoid unnecessary surgery.
Main Methods:
- Literature review of neoplastic and nonneoplastic entities mimicking meningiomas.
- Inclusion of case illustrations for visual comparison.
- Discussion of diagnostic challenges and implications.
Main Results:
- A list of mimickers is presented, including solitary fibrous tumors, gliosarcomas, leiomyosarcomas, hemangiopericytomas, melanocytomas, Hodgkin's disease, plasmacytomas, inflammatory pseudotumors, neurosarcoidosis, plasma cell granulomas, Rosai-Dorfman disease, Castleman's disease, xanthomas, rheumatoid nodules, and tuberculomas.
- These lesions often involve the dura.
- Intraoperative recognition is key to appropriate management.
Conclusions:
- Awareness of dural lesions that mimic meningiomas is essential for accurate diagnosis.
- Considering these mimics in the differential diagnosis can prevent misdiagnosis and unnecessary surgical procedures.
- Improved diagnostic accuracy leads to more appropriate treatment strategies for patients.