Proximal interphalangeal region
Regio interphalangea proximalis
Definition
The proximal interphalangeal region is the topographic region of the digit centered on the proximal interphalangeal (PIP) joint, located between the proximal and middle phalanges. It includes the joint and its periarticular structures, including the articular capsule, collateral ligaments, plantar ligaments, synovial recesses, and the surrounding soft tissues. In the pelvic limb it is described as plantar.
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