In a lateral calcaneus radiograph, which structure is primarily imaged?

The primary structure imaged in a lateral calcaneus radiograph is the calcaneus itself. This specific view focuses on the heel bone, allowing for optimal visualization of its shape, alignment, and any potential fractures or abnormalities. The lateral position provides a clear profile of the calcaneus, which is essential for diagnosing conditions such as calcaneal fractures or assessing the subtalar joint’s relationship.

While other structures, such as the talus, navicular, and malleolus, may be partially visible in a lateral view due to their proximity, the primary objective of this radiographic projection is to clearly depict the calcaneus. Thus, the calcaneus is the most significant structure being examined in this imaging modality, emphasizing its clinical importance in lower extremity assessments.