Preoperative computed tomography imaging for accurate diagnosis and surgical planning in equine cranial disorders: two case reports of congenital malformations

• Published in: Journal of Equine Science Vol. 36; no. 1; pp. 33 - 37
• Main Authors: TAGAMI, Masayuki, TSUZUKI, Nao, KATO, Fumiki, TAGAMI, Masaaki, TAKEYAMA, Akiko, SUZUKI, Tsukasa, YAMAGA, Takashi
• Format: Journal Article
• Language: English
• Published: Japan Japanese Society of Equine Science 2025; 日本ウマ科学会; Japan Science and Technology Agency; The Japanese Society of Equine Science
• Subjects: Calcification; Calcification (ectopic); Case reports; Computed tomography; computed tomography imaging; Congenital defects; congenital malformation; dentigerous cyst; Diagnosis; Disorders; Endoscopy; horse; Image resolution; Inner ear; Joint diseases; Medical imaging; Radiography; Skull; Soft tissues; Teeth; horse; dentigerous cyst; computed tomography imaging; congenital malformation
• ISSN: 1340-3516; 1347-7501
• DOI: 10.1294/jes.36.33

Computed tomography (CT) offers high-resolution, three-dimensional imaging, making it particularly valuable for assessing complex structures, such as the head, especially when conventional radiography and endoscopy are insufficient for a definitive diagnosis. Herein, we present two cases of equine cranial disorders resulting from congenital malformations. In case 1, which had a dentigerous cyst, CT images confirmed the location of the ectopic tooth within the skull and a detailed fistula tube. In case 2, which had temporohyoid osteoarthropathy, CT examination revealed that the stylohyoid bone was malformed, and the inner ear was presumed to be filled with soft tissue with calcification. The information obtained by CT was invaluable, as it allowed for accurate diagnosis and precise surgical planning.