A controlled study of medial arterial calcification of legs: implications for diabetic polyneuropathy.

Background: Diabetes mellitus (DM) is associated with an increased prevalence of peripheral arterial disease and medial arterial calcification (MAC), possibly related to prevalence and severity of diabetic polyneuropathy (DPN).

Objective: To assess the prevalence, risk covariates, and implication of MAC in a controlled study of healthy subjects and patients with DM.

Design: Masked evaluation of radiographs.

Primary mixed tumor of bone.

Mixed tumors occur most commonly in major salivary glands. They may rarely appear in other sites, such as skin, breast, and lung. There have been rare reports of similar tumors occurring in bone.

Extraskeletal osteosarcoma arising in myositis ossificans.

A 53-year-old woman had extraskeletal osteosarcoma that developed from a soft tissue bony mass present on the volar aspect of the left wrist for 4 years. Initially, the bony mass was soft and movable, but during the first year it became hard and fixed. The patient had no history of trauma.

Chondromyxoid fibroma of bone: a clinicopathologic review of 278 cases.

In a study of the clinical, radiographic, and pathological features of chondromyxoid fibroma, the tumor was slightly more common in men, usually in the second decade of life. Almost half of the tumors involved the long bones, although the ilium and the small bones were also common sites. Roentgenograms showed a sharply marginated, lobulated, lucent defect in the metaphysis.