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FIGURE 10.34. A 22-year-old woman with insidious-onset left hip pain. (A) AP radiograph demonstrates joint space preservation with multiple subchondral cysts of the femoral head suggestive of pig-mented villonodular synovitis. (B) Coronal T2-weighted image of the hip demonstrates evidence of proliferative synovial disease (arrows). (C) The hip is viewed from the anterolateral portal. Synovial disease characteristic of pigmented villonodular synovitis is identified in the acetabular fossa. (D) Debridement of the fossa is begun with the shaver from the anterior portal. (E) Debridement of the fossa is then completed from the posterolateral portal. (F) Synovial disease of the posterior capsule extending underneath the posterior labrum is best debrided from the posterolateral portal because this portion of the capsule is not well accessed from the peripheral compartment. (G) With the traction released and the hip flexed, the arthroscope is then repositioned from the anterolateral portal into the peripheral compartment. Extensive synovial disease is present, which is debrided with a shaver introduced from an ancillary portal. This view especially illustrates the seaweed appearance ascribed to pigmented villonodular synovitis.

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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