Imaging findings of fibrous dysplasia with histopathologic and intraoperative correlation.
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Biomedical subjects
Publications and source records attributed to Mihra S Taljanovic.
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OBJECTIVE: To determine the usefulness of radiography for interpretation of musculoskeletal (MSK) magnetic resonance imaging (MRI) studies. DESIGNS AND PATIENTS: In a 1-year period, 1,030 MSK MRI studies were performed in 1,002 patients in our institution. For each study, the interpreting radiologist completed a questionnaire regarding the availability and utility of radiographs, radiological reports and clinical information for the interpretation of the MRI study. RESULTS: Radiographs were essential, very important or added information in 61-75% of all MSK MRI cases. Radiographs were judged as essential for reading of MRI studies more often for trauma, infection/inflammation and tumors than for degenerative and miscellaneous/normal diagnoses (chi(2)=60.95, df=16, P<0.0001). The clinical information was rated as "essential" or "useful" significantly more often than not (chi(2)=93.07, df=16, P<0.0001). The clinical and MRI diagnoses were the same or partially concordant significantly more often for tumors than for trauma, infection/inflammation and degenerative conditions, while in the miscellaneous/normal group they were different in 64% of cases. When the diagnoses were different, there were more instances in which radiographs were not available. CONCLUSIONS: Radiographs are an important, and sometimes essential, initial complementary study for reading of MSK MRI examinations. It is highly recommended that radiographs are available when MSK MRI studies are interpreted.
RATIONALE AND OBJECTIVES: To find major reasons why junior academic radiologists leave academia for private practice and to suggest future changes to motivate them to stay. MATERIALS AND METHODS: 2000 surveys were sent to every tenth member of the Radiological Society of North America (RSNA) who completed training within the past decade. Those in academic institutions and those who left within 5 years were asked to respond. RESULTS: 132 radiologists responded. Thirty-two percent of responders were in academic radiology. Of those in academic radiology, 71% plan to stay at the same institution, 7% are planning to move to another academic institution, 17% are considering private practice, and 5% are leaving for private practice. The main reasons to leave were low pay and lack of academic time. Sixty-eight percent of responders already left academia after an average of 3.28 years. Ninety-five percent feel the decision was good, and 65% would not go back. Forty-nine percent experienced more than 100% pay increase, 60% feel they work harder, and 62% feel quality of life is better. CONCLUSION: Significant changes should be made to motivate junior radiologists to stay in academia. Developing leaders in radiology is a must, and should be a top priority. Academic radiologists should not be expected to read private practice volumes and still have time to produce quality research and teaching. Clinical duties should be limited to 32 hours per week. At least 1 day a week should be protected academic time. Efforts should be made to decrease the discrepancy between incomes. Mentoring is important, allowing a smooth transition for junior faculty members to optimize academic progress and lead to promotion.
We present an unusual case of two synchronous chondroid matrix lesions in the proximal femur of a 16-year-old male. They were incidental findings, which subsequently underwent surgical excision and confirmed the imaging findings of a "kissing" osteochondroma and a periosteal/juxtacortical chondroma. We could not find another report of these findings in the English literature.
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Foreign bodies are uncommon, but they are important and interesting. Foreign bodies may be ingested, inserted into a body cavity, or deposited into the body by a traumatic or iatrogenic injury. Most ingested foreign bodies pass through the gastrointestinal tract without a problem. Most foreign bodies inserted into a body cavity cause only minor mucosal injury. However, ingested or inserted foreign bodies may cause bowel obstruction or perforation; lead to severe hemorrhage, abscess formation, or septicemia; or undergo distant embolization. Motor vehicle accidents and bullet wounds are common causes of traumatic foreign bodies. Metallic objects, except aluminum, are opaque, and most animal bones and all glass foreign bodies are opaque on radiographs. Most plastic and wooden foreign bodies (cactus thorns, splinters) and most fish bones are not opaque on radiographs. All patients should be thoroughly screened for foreign bodies before undergoing a magnetic resonance imaging study.
Joint arthroplasty is the most frequently performed orthopedic procedure after fracture fixation. The major indications for any joint replacement are degenerative joint disease, inflammatory arthropathy, avascular necrosis, and complicated fractures. The major contraindications for any joint arthroplasty are systemic and joint infection and a neuropathic joint. The interpretation of radiographs in cases of joint arthroplasty is a significant part of many radiology practices, and correct recognition of the prosthetic devices and their complications by the radiologist is important. The article reviews the most common types of joint arthroplasties and prostheses of the upper and lower extremities and discusses the most frequent complications associated with their placement.
The basic goal of fracture fixation is to stabilize the fractured bone, to enable fast healing of the injured bone, and to return early mobility and full function of the injured extremity. Fractures can be treated conservatively or with external and internal fixation. Conservative fracture treatment consists of closed reduction to restore the bone alignment. Subsequent stabilization is then achieved with traction or external splinting by slings, splints, or casts. Braces are used to limit range of motion of a joint. External fixators provide fracture fixation based on the principle of splinting. There are three basic types of external fixators: standard uniplanar fixator, ring fixator, and hybrid fixator. The numerous devices used for internal fixation are roughly divided into a few major categories: wires, pins and screws, plates, and intramedullary nails or rods. Staples and clamps are also used occasionally for osteotomy or fracture fixation. Autogenous bone grafts, allografts, and bone graft substitutes are frequently used for the treatment of bone defects of various causes. For infected fractures as well as for treatment of bone infections, antibiotic beads are frequently used.