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Radiology-pathology correlation: Giant tumefactive perivascular spaces.

John C Benson¹, Jorge A Trejo-Lopez², Jason L Cormier³

¹Department of Radiology, Mayo Clinic, Rochester, MN, USA.

The Neuroradiology Journal

|April 13, 2024

Summary

This summary is machine-generated.

Giant tumefactive perivascular spaces (GTPVSs) present unique imaging challenges, often mimicking other brain lesions. This case highlights key radiologic and histologic features to differentiate GTPVSs from similar pathologies.

Keywords:

Tumor pathology tumefactive

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Published on: February 8, 2019

Area of Science:

Neuroradiology
Neuro-oncology
Cerebrovascular Diseases

Background:

Dilated perivascular spaces (PVSs) are common incidental findings on neuroimaging.
Giant tumefactive PVSs (GTPVSs) are rare variants with complex cystic appearances.
GTPVSs are frequently misdiagnosed as neoplasms, infarcts, or cysts due to their unusual morphology.

Purpose of the Study:

To present a case of a resected giant tumefactive perivascular space (GTPVS).
To elucidate the characteristic radiologic and histologic features of GTPVSs.
To provide guidance on differentiating GTPVSs from mimicking intracranial lesions.

Main Methods:

Case report of a surgically resected GTPVS.
Detailed review of pre-operative imaging findings (MRI/CT).
Histopathologic examination of the resected lesion.

Main Results:

The resected lesion demonstrated classic features of a GTPVS.
Radiologic findings included multilocular cystic components and perivascular location.
Histology confirmed dilated PVSs lined by endothelium and surrounded by gliosis.

Conclusions:

GTPVSs, though rare, possess distinct imaging signatures.
Awareness of GTPVS imaging and pathologic features aids in accurate diagnosis.
Distinguishing GTPVSs from neoplasms and cysts is crucial for appropriate patient management.