Peer-reviewed veterinary case report
Early MRI scans after brain tumor surgery in dogs
By Chow, Kathleen Ella et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2015·University of Melbourne Veterinary Hospital, Australia·View original on PubMed →
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Original publication title: EARLY POSTOPERATIVE MAGNETIC RESONANCE IMAGING FINDINGS IN FIVE DOGS WITH CONFIRMED AND SUSPECTED BRAIN TUMORS.
- Species:
- dog
Plain-English summary
A group of five dogs with confirmed or suspected brain tumors underwent surgery to remove the tumors, followed by early MRI scans within four days to check for any remaining tumor tissue or complications. The scans showed signs like abnormal enhancement around the surgery site and some bleeding. In two cases, there was evidence of leftover tumor tissue, while in others, it was suspected but not confirmed. These findings suggest that early MRI after brain surgery can be helpful in identifying any remaining tumor tissue in dogs.
People also search for: dog brain tumor surgery recovery · MRI for dog brain tumor · signs of dog brain tumor after surgery
Abstract
Early postoperative neuroimaging has been performed in people for over 20 years to detect residual brain tumor tissue and surgical complications. The purpose of this retrospective study was to describe characteristics observed using early postoperative magnetic resonance imaging in a group of dogs undergoing craniotomy for brain tumor removal. Two independent observers came to a consensus opinion for presence/absence of the following MRI characteristics: residual tumor tissue; hemorrhage and ischemic lesions; abnormal enhancement (including the margins of the resection cavity, choroid plexus, meninges) and signal intensity changes on diffusion-weighted imaging. Five dogs were included in the study, having had preoperative and early postoperative MRI acquired within four days after surgery. The most commonly observed characteristics were abnormal meningeal enhancement, linear enhancement at margins of the resection cavity, hemorrhage, and a thin rim of hyperintensity surrounding the resection cavity on diffusion-weighted imaging. Residual tumor tissue was detected in one case of an enhancing tumor and in one case of a tumor containing areas of hemorrhage preoperatively. Residual tumor tissue was suspected but could not be confirmed when tumors were nonenhancing. Findings supported the use of early postoperative MRI as a method for detecting residual brain tumor tissue in dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/26372362/