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Terrence C Demos

Publications and source records attributed to Terrence C Demos.

At least 19 recordsLinked to original sources
PubMed2006

Giant-cell tumor.

Giant-cell tumor is a benign but locally aggressive primary bone tumor that requires surgical management. Most giant-cell tumors initially are demonstrated on radiographs as distal, subarticular, geographic osteolytic lesions. Abundant giant cells on histology are reactive secondary to a neoplastic fibroblast-like stromal cell. Giant cells are present in many neoplastic and non-neoplastic bone lesions; therefore the diagnosis of giant-cell tumors requires correlation of clinical, imaging, and pathologic data to exclude other lesions that demonstrate a similar histologic pattern. A small number of giant-cell tumors result in lung lesions, many of which have benign histology, can be treated by wedge resection, and do not affect long-term outcome. After adequate surgical curettage and the use of intraoperative surgical adjuvants, recurrence rates of approximately 10% are reported.

Adult↗
PubMed2006

Atlantoaxial instability secondary to rheumatoid arthritis.

Multiple elements contribute to the stability of the anterior C1-C2 articulation, making this region subject to pathologies including trauma, inflammation, infection, and congenital deformities. C1-C2 instability places a patient at risk for significant neurologic compromise. Radiologic imaging plays a fundamental role in diagnosing atlantoaxial instability, indicating etiology, showing details of associated abnormalities, and providing information for planning treatment.

Arthritis, Rheumatoid↗
PubMed2005

Your diagnosis? Scaphoid fracture.

Fractures of the scaphoid are the most common carpal bone fracture. With careful management, prognosis is excellent. Imaging is critical, not only for early diagnosis, but also for monitoring patients after initial treatment to detect unstable fractures, the common complications of nonunion and avascular necrosis, and the need for surgical treatment.

Adult↗
PubMed2005

Your diagnosis? Aneurysmal bone cyst.

The etiology of aneurysmal bone cysts is uncertain, but they may originate as a localized arteriovenous malformation. These benign lesions can be primary or occur secondary to an underlying lesion. The majority of patients who present with aneurysmal bone cysts are younger than age 20 years. One half of lesions occur within the long bones and one third involve the spine. Most flat bone lesions, approximately 10%, occur in the pelvis. Fluid-fluid levels are common on CT and MRI but are not pathognomonic. Although aneurysmal bone cyst is benign, there may be aggressive clinical and imaging features. Treatment for aneurysmal bone cyst is surgical curettage, intraoperative adjuvant therapy, and bone grafting of the lesion. The prognosis following treatment is very good, although 10% to 20% of cases are reported to recur.

Bone Cysts, Aneurysmal↗
PubMed2005

The case: your diagnosis? Osteopoikilosis.

Enostoses, osteomas, osteopoikilosis, osteopathia striata, and melorheostosis may simulate other diseases. However, the findings on imaging usually are characteristic enough to indicate the correct diagnosis.

Adult↗
PubMed2005

Radiologic case study. Seronegative spondyloarthropathy associated with Crohn's disease.

Seronegative arthropathies are a heterogeneous group of arthropathic disorders with negative rheumatoid factors and varying association with the HLA-B27 phenotype. The distribution of involvement and pattern of presentation within this group is variable. However, these disorders share common features of aggressive erosions, bone density preservation, and proliferative bony response to inflammation. These features along with asymmetric involvement of the appendicular skeleton, sacroiliitis, and spine abnormalities usually allow differentiation from rheumatoid arthritis and other inflammatory arthritides based on imaging studies.

Adult↗
PubMed2004

Radiologic case study. Quadriceps tendon rupture.

Quadriceps tendon ruptures usually occur in people aged >40 years who have underlying medical conditions. The injury is disabling and outcome is optimized with early management. The classic clinical symptoms may not be present, in which case radiographs, ultrasound, and MRI often are essential for early diagnosis.

Age Factors↗
PubMed2003

Radiologic case study. Stress-induced osteolysis of the distal clavicle.

Repetitive stress-induced osteolysis of the distal clavicle occurs in athletes who engage in upper extremity weight strengthening exercises and occupational overuse. Repetitive microtrauma is believed to cause microfractures and bone resorption with local pain. Conservative treatment usually is effective. If conservative treatment is unsuccessful. excellent outcomes can be expected after open or arthroscopic resection of the distal clavicle.

Adult↗