Diagnostic imaging of nasal malignant melanoma in a dog

Jung, Joohyun; Kwon, Jungkook; Chang, Jinhwa; Oh, Sunkyoung; You, Mi-Hyeon; Kim, Dae-Yong; Yoon, Junghee; Choi, Mincheol

Korean Journal of Veterinary Research 2008;48(3):369-374.

Joohyun Jung, Jungkook Kwon, Jinhwa Chang, Sunkyoung Oh, Mi-Hyeon You, Dae-Yong Kim, Junghee Yoon, Mincheol Choi

College of Veterinary Medicine, Seoul National University

개 비강에서 발생한 악성 흑색종의 영상 진단 증례

정주현, 권정국, 장진화, 오선경, 류미현, 김대용, 윤정희, 최민철

서울대학교 수의과대학

Abstract

A neutered male, 8-year-old, Pekingese, weighing 4.3 kg with a history of anorexia, sneezing, nasal discharge, and epistaxis for one month was referred. Soft tissue swelling around the nasal bone and small defects of the hard palate with a tiny round dark red mass were found on physical examination. The laboratory tests represented mild leukocytosis. On skull radiographs, soft tissue swelling and osteolytic change of the incisor bone, nasal bone, and maxilla were found. On computed tomography scan images, there was soft tissue attenuating opacity with calcified spots in the bilateral nasal cavities and frontal sinuses. Loss of nasal turbinate pattern and nasal septum was found. And destruction of the insicor bone, nasal bone, maxilla, hard palate, perpendicular palatine bone, and cribriform plate were identified. Nasal malignant melanoma was confirmed by nasal biopsy.

Key Words: computed tomography, dog, nasal melanoma, radiographs