Differential Diagnosis

Soft tissue mallet

Dislocated distal interphalangeal (DIP) joint

Mallet Finger Radiograph
Figure 38—1. Attitude of a finger with the inability to extend the Figure 38—2. Radiograph, splay lateral, demonstrating a mallet of tip sitting at 45 degrees. the ring finger of a different patient.
Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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