Related Experiment Videos
Inflammatory pseudotumor of the choroid plexus
M Bramwit1, P Kalina, M Rustia-Villa
1Department of Radiology, North Shore University Hospital, New York University School of Medicine, Manhasset 11030, USA.
Abstract:
A case of inflammatory pseudotumor is described, in which CT revealed a hyperdense intraventricular lesion with a trapped temporal horn, and MR imaging showed decreased T1 and markedly hypointense T2 signal with homogeneously intense enhancement. Radiologically and grossly the tumor resembled a meningioma; however, histologically it was composed purely of inflammatory, nonneoplastic components. The lesion was resected with no evidence of recurrence at 5-month follow-up.
Insights
A rare inflammatory pseudotumor mimicked a meningioma on imaging. Histology confirmed a non-neoplastic inflammatory lesion, successfully resected with no recurrence.
Area of Science:
- Neuropathology
- Neuroradiology
- Neurosurgery
Background:
- Inflammatory pseudotumors are rare, benign lesions that can occur in various locations.
- Distinguishing inflammatory pseudotumors from neoplastic lesions can be challenging, especially in the brain.
Observation:
- A case is presented of an intraventricular lesion with imaging characteristics suggestive of a meningioma.
- CT demonstrated a hyperdense lesion with a trapped temporal horn.
- MRI revealed decreased T1 and markedly hypointense T2 signals with homogeneous enhancement.
Findings:
- Radiological and gross examination were consistent with meningioma.
- Histological examination revealed the lesion was composed entirely of inflammatory, nonneoplastic cells.
- Surgical resection was performed.
Implications:
- This case highlights the importance of histological examination for definitive diagnosis, even when imaging suggests a neoplastic process.
- Accurate diagnosis is crucial for appropriate management and to avoid unnecessary oncological treatment.
- Complete resection of inflammatory pseudotumors can lead to favorable outcomes with no recurrence.