PetCaseFinder

Peer-reviewed veterinary case report

Aggressive cancer with widespread spread in 6-month-old Neopolitan

By Sanders, N A et al.·Published in Journal of the American Animal Hospital Association·1996·Department of Clinical Studies, United States·View original on PubMed

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 We do not publish original research — every detail traces back to the citation above.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: Aggressive, undifferentiated sarcoma with widespread metastasis in a six-month-old Neopolitan mastiff.

Species:
dog
Canine hemangiosarcomaStomach & digestionDogs

Plain-English summary

A six-month-old Neapolitan mastiff was brought to the vet because of a rapidly growing lump on its neck. Sadly, after the dog passed away, tests revealed it had an aggressive type of cancer called undifferentiated sarcoma, which had already spread to multiple organs, including the lungs and liver. This type of cancer is rare in young dogs, and it can be challenging to identify due to its fast growth and unclear origin. Unfortunately, due to the advanced stage of the disease, treatment options were limited, and the outcome was not favorable.

People also search for: puppy neck lump · Neapolitan mastiff cancer symptoms · aggressive sarcoma in dogs

Abstract

A six-month-old Neopolitan mastiff presented for a rapidly growing cervical mass. Undifferentiated sarcoma was diagnosed at post mortem based on histopathology and immunohistochemistry. Metastases to mediastinum, pleura, lungs, liver, kidneys, omentum, mesentery, and multiple lymph nodes were present. Soft-tissue sarcomas are reported infrequently in children and young dogs. The cell of origin often is difficult to determine due to poor differentiation and rapid growth of these neoplasms.

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 PubMed: https://pubmed.ncbi.nlm.nih.gov/8680927/