Radiological landmarks as an aid in the interpretation of rodent skull extra-oral projections

Abstract

Knowledge of the radiographic anatomy of rodent skulls is essential for accurately interpreting extra-oral radiographs, a non-invasive diagnostic tool commonly used in veterinary practice. Due to the complexity of the skull and the potential for distortion in two-dimensional views, a systematic evaluation of anatomical structures is necessary. This study identifies the most clinically relevant anatomical landmarks on standard extra-oral radiographic views of the skull and mandible in various rodent species, including a cane rat, two woodchucks, and seven common mole rats. Specimens were evaluated with bone and soft tissue intact, as well as dried skulls, to identify key anatomical features. The findings highlight distinct species-specific variations despite general similarities in skull structure. These landmarks were catalogued to aid veterinary professionals in interpreting rodent radiographs. Improved recognition of these structures enhances diagnostic accuracy, enabling better assessment of normal anatomy and potential pathological conditions in rodent patients.

Description

DATA AVAILABILITY STATEMENT : The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

Keywords

Incisors and cheek teeth, Osteology, Radiography, Rodent skulls

Sustainable Development Goals

SDG-03: Good health and well-being
SDG-15: Life on land

Citation

Norval, Q., Tordiffe, A. & Steenkamp, G. 2025, 'Radiological landmarks as an aid in the interpretation of rodent skull extra-oral projections', Zoo Biology, vol. 44, no. 3, pp. 283–289, doi : 10.1002/zoo.21897.