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Case Report: Pyogranulomatous Panniculitis Mimicking an Invasive Subcutaneous Mass with Muscular Pseudo-Invasion in a
Changmin Park1, Bumgyu Shin1, Sangyul Lee1
1Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, Neungdongro 120, Seoul 05029, Republic of Korea.
Veterinary Sciences
|March 27, 2026
Summary
An aggressive cervical mass in a dog was initially suspected to be cancer based on imaging. However, surgery revealed it was a severe inflammatory condition, pyogranulomatous panniculitis and perifolliculitis, highlighting the need for histopathology.
Area of Science:
- Veterinary Pathology
- Diagnostic Imaging in Animals
- Canine Dermatology
Background:
- Pyogranulomatous panniculitis and perifolliculitis can present as rapidly expanding cervical masses.
- Advanced imaging like Computed Tomography (CT) and Ultrasonography (US) can be misleading in differentiating inflammatory masses from invasive neoplasia.
