AI Article Synopsis
- The study focuses on the imaging characteristics of rare cystic meningiomas in both infants and adults, based on a review of MRI and CT scans from five patients aged 1 to 73.
- Cystic meningiomas can appear as solid, cystic, or multicystic masses, with varied imaging features such as enhancing and non-enhancing areas in the cyst wall.
- Recognizing the diverse imaging patterns of cystic meningiomas is crucial for accurate diagnosis, especially in infants, to prevent misdiagnosis before surgery.
Article Abstract
Objective: To describe the imaging features of unusual intracranial cystic meningiomas in infants and adults.
Methods: We retrospectively reviewed the magnetic resonance and computed tomography findings for 2 female patients and 3 male patients, ranging in age from 1 to 73 years (median 41 years), with histopathologically proven cystic meningioma.
Result: Although cystic meningiomas usually appear as solid and cystic masses, they may present as a mainly multicystic lesion. The wall of a cystic part of the meningioma may include both enhancing and unenhancing areas at imaging. The cystic portion of a meningioma is hypointense on diffusion-weighted images and markedly hyperintense on corresponding apparent diffusion coefficient maps.
Conclusion: Cystic meningiomas may vary in appearance at imaging. They can be very challenging when present in infants. Knowledge of imaging findings and awareness of variability in the differential diagnosis can help to avoid preoperative diagnostic pitfalls.
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