Peer-reviewed veterinary case report
Axillary lump diagnosed as neuroblastoma-like schwannoma in cat
By Vivian S. Chen et al.·Published in Frontiers in Veterinary Science·2022·View original on Semantic Scholar →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Case Report: Neuroblastoma-Like Schwannoma in a Domestic Short-Haired Cat
- Species:
- cat
Plain-English summary
A 6-year-old male domestic short-haired cat had an unusual mass found in his armpit during a routine check-up. After surgery to remove the mass, it was examined and identified as a rare type of benign tumor called a neuroblastoma-like schwannoma. The tumor was well-defined and firm, measuring about half a centimeter in diameter. Fortunately, the surgery was successful, and the cat was able to recover without any complications.
People also search for: cat armpit lump · cat tumor surgery recovery · neuroblastoma-like schwannoma in cats
Abstract
An axillary mass was detected in a 6-year-old, neutered, male, domestic short-haired cat during a wellness exam. Gross examination following surgical removal revealed a discrete, deep subcutaneous, discoid mass that was between 0.5- and 0.7-cm-in-diameter and diffusely firm and white. Histologically, the mass was well-demarcated, partially encapsulated, and expanded the panniculus carnosus. It was composed of tightly packed, giant rosettes of radially arranged fusiform cells stacked in one to 10 layers with peripherally palisading nuclei and with centrally oriented, fibrillary, cytoplasmic processes, and collagenous fibers. Laminin immunoreactivity and ultrastructural examination highlighted a continuous basal lamina outside the plasma membrane of each neoplastic cell. Neoplastic cells were immunoreactive for GFAP, S100, periaxin, and Sox-10 and were immunonegative for synaptophysin, smooth muscle actin, and pancytokeratin. Collective findings were consistent with a diagnosis of neuroblastoma-like schwannoma. This is the first veterinary report of this rare variant of benign schwannoma.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on Semantic Scholar: https://www.semanticscholar.org/paper/35782550