What is the projection of the wrist for the PA oblique projection in lateral rotation?

The PA oblique projection of the wrist in lateral rotation is correctly described by the option indicating the coronal plane at a 45-degree angle to the image receptor (IR). In this projection, the wrist is positioned so that the palmar surface faces downwards, and the forearm is rotated laterally. The purpose of this positioning is to visualize the carpal bones and the intercarpal joints more clearly by separating the bones that would otherwise overlap in the anteroposterior (AP) view.

The 45-degree angle is critical because it provides optimal visualization of the scaphoid, trapezium, and other carpal structures while also allowing assessment of the spaces between the bones, which is crucial for diagnosing fractures or other pathologies. By aligning the coronal plane at this angle, radiographers are able to maximize diagnostic quality and clarity of the image produced.

This option ensures that the anatomy is positioned correctly, preventing distortion and overlapping of structures that may hinder diagnosis and clinical evaluation.