As shown in 15 male and 17 female developmentally-normal, 6-9 week (15-47 mm crown-rump length) embryos, intercorrelations (communalities) involving both mesial and distal deciduous teeth and proximal and distal segments of the developing hand were systematically higher in female embryos than in male embryos, without exception, a finding in surprising accordance with postnatal dimensional and t...

To characterize the magnitude and location of mineralized bone loss, 40 patients (20 men, 20 women, 29 white, 11 black) with clinically significant renal osteodystrophy who could be unambiguously classified based on histologic criteria as having osteitis fibrosa (OF; 20 cases) or osteomalacia (OM; 20 cases) were studied; they had been on maintenance hemodialysis for 4.6 +/- 3.0 yr. One hundred ...

Primary bone neoplasms are common in dogs. Most primary bone tumors in dogs are malignant, in that they usually cause death as a result of local infiltration (e.g., pathologic fractures or extreme pain leading to euthanasia) or metastasis (e.g., pulmonary metastases in osteosarcoma). Neoplasms that metastasize to the bone are extremely rare in dogs; some malignant tumors that occasionally metas...

Pigmented villonodular synovitis (PVNS) is a benign proliferative disorder primarily occurring in the large joints of the appendicular skeleton such as the knee and hip joints. We present an unusual case of PVNS involving the cervical spine in an adult. MR imaging showed an enhancing mass lesion arising from the posterior elements of the cervical spine and hyperintensity on the T2-weighted imag...

From March to May 2003, the USNS Comfort was deployed to the Persian Gulf in support of combat operations for Operation Iraqi Freedom. The onboard orthopedic service treated 58 U.S. casualties during that period. Eighty-seven percent of the injuries were to the appendicular skeleton. Twenty-four percent were battle injuries, and 72% were nonbattle injuries. Patients with battle injuries tended ...

ewing's sarcoma (es) is a highly malignant neoplasm of childhood and adolescence seen commonly in both axial and appendicular skeleton but uncommonly in acral region. ewing’s tumor in the hand is extraordinarily rare. radiological features are variable and can mimic other common lesions. we present a case of 13 year old female, with complaints of pain and swelling in right hand, which on x-ray ...