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Fibrous Hamartoma
Heather Borders, MD
over 7 years ago
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Cavernoma

Case Detail

Anatomy: Brain-Spine
Borders
Heather Borders, MD
Diagnostic Category: Developmental or Congenital
Created: over 7 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: MRI
Activities:
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History

Four year old male who fell off of the jungle gym. Presented to ED and had a head CT which demonstrated “hemorrhage”. Follow up MRI was performed to assess for AVM.


Case Images


Diagnosis

Left frontoparietal cavernoma

Findings

Left frontoparietal mildly heterogeneous tubular shaped lesion extending from the ventricle to the brain surface. On T2 there are multiple small hyperintense foci with peripheral hypointensity. On gradient echo there is significant blooming. MRA was normal.

Discussion

Cavernoma is a collection of vascular spaces; dilated capillary beds containing blood products in various stages. Adjacent arteries and veins are usually normal. These may be multiple in the familial form.

CT features include a mildly hyperdense mass with or without calcification with mild enhancment. MRI features include a sharply marginated mass with no surrounding edema. The lobules will have variable signal intensity. Gradient echo will show blooming related to blood products and prior hemorrhage and are useful to look for additional lesions.

Possibly associated with a venous malformation.

Reference

Barkovich, Pediatric neuroimaging.



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