Papillary squamous cell carcinoma in a young dog

Area of Science:

• Veterinary Medicine
• Comparative Pathology
• Oncology

Background:

• Intraoral masses in dogs require accurate diagnosis for effective treatment.
• Canine acanthomatous epulis is a common benign oral tumor.
• Squamous cell carcinoma is a malignant oral neoplasm with varying prognoses.

Observation:

• A 9-month-old Labrador retriever presented with an intraoral growth.
• Surgical resection of the rostral maxilla was performed to remove the mass.
• Initial biopsy suggested acanthomatous epulis.

Findings:

• Postoperative consultations with multiple pathologists led to a revised diagnosis.
• The final diagnosis was papillary squamous cell carcinoma, a malignant condition.
• This highlights the importance of expert pathological review for oral tumors.

Implications:

• Accurate histopathological diagnosis is crucial for determining the appropriate treatment and prognosis of canine oral tumors.
• This case underscores the potential for misdiagnosis of oral masses, even with initial biopsy.
• Further research into differentiating benign and malignant oral neoplasms in dogs is warranted.