Kevin D. Plancher and Michael Bothwell
A 19-year-old man presents with a larger painful mass in his left long finger (Fig. 90-1). The pain has been gradually increasing and is worse at night. The patient reports he gains some pain relief with aspirin, but would like to determine what is causing his pain.
The patient has a large mass over the proximal interphalangeal (PIP) joint of the left long finger. The patient exhibits tenderness with pressure. Range of motion was minimally affected.
Plain radiographs reveal a small round lucency surrounded by sclerosis or a cortical reaction (Fig. 90—2). Lesions not demonstrated on plain films require a bone scan or computed tomography scan (Fig. 90—3). Bone scan may be necessary to demonstrate a sclerotic nidus (Fig. 90-4).
Ganglion Enchondroma Aneurysmal bone cyst Giant cell tumor Chondrosarcoma Bone infection Osteoid osteoma
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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.