Cubonavicular Coalition: Magnetic Resonance Imaging Findings and Associated Pathology of a Rarely Reported Condition in 27 Patients.

Rationale And Objectives: (1) Describe multimodality imaging of cubonavicular coalition (CNC) with magnetic resonance imaging (MRI) focus, (2) evaluate CNC associated foot and ankle pathology, (3) examine clinical presentation/symptoms associated with CNC, (4) record CNC treatment.

Materials And Methods: Retrospective Institutional Review Board (IRB) approved study. Picture Archiving and Communication System (PACS) databases searched for CNC.

Beyond schwannomas and neurofibromas: a radiological and histopathological review of lesser-known benign lesions that arise in association with peripheral nerves.

Peripheral nerve sheath tumors comprise a significant percentage of both benign and malignant soft tissue tumors. The vast majority of these lesions are schwannomas and neurofibromas, which most radiologists are familiar with including the well-described multimodality imaging features. However, numerous additional often under-recognized benign entities associated with nerves exist.

Optimizing the Radiology Experience through Radiologist-Patient Interaction.

Objective The goal of this survey-based study is to explore patients' knowledge of and expectations for radiologists in the outpatient setting.  Materials and Methods A comprehensive survey was distributed to adult patients undergoing knee magnetic resonance imaging (MRI) over a one-year period from September 2015 through August 2016 at an urban, quaternary care academic medical center. Results The survey results demonstrate that only a subset of patients undergoing knee MRI at the institution during the survey period are aware of the role of the radiologist, which is a well-documented fact described in the literature.

The G2 research R.I.P. fragmenting bullet-radiographic features of a recently encountered projectile.

Gunshot wounds (GSWs) are an important cause of disability and death in the USA. Although radiography is limited in its ability to detect bullet types, a projectile introduced during the last decade, the R.I.

Soft-Tissue Tumors of the Hand-Imaging Features.

Imaging studies of the hands and fingers are common, and radiologists are generally comfortable with traumatic and degenerative conditions which arise frequently in daily practice. However, a variety of common and uncommon soft-tissue tumors also occur in the hand, the appropriate diagnosis of which can be a source of confusion for both clinicians and radiologists. These lesions often have overlapping imaging characteristics; however, a structured approach can help provide a focused differential diagnosis and impact further workup and management.

Update on Imaging of Knee Arthroplasties: Normal Findings and Hardware Complications.

Total knee arthroplasty (TKA) is the most common joint replacement performed. This article reviews the normal appearance of TKA including the most common types of arthroplasties as well as complications. Common complications at the present time are infection, aseptic loosening, and instability.

Spectrum of Voriconazole-Induced Periostitis With Review of the Differential Diagnosis.

Objective: Voriconazole is an antifungal medication used primarily for the treatment of Candida and Aspergillus infections. A fairly newly described side effect of long-term voriconazole use is periostitis. The purpose of this article is to describe the main differential consideration-hypertrophic osteoarthropathy-and other differential diagnoses, including venous stasis, thyroid acropachy, and hypervitaminosis A.

Use of Hyperlinks in PowerPoint Presentations as an Educational Tool.

PowerPoint software (Microsoft, Redmond, WA) has become a popular tool for creating and displaying electronic presentations. The "hyperlink" function in PowerPoint allows users to advance from one slide to another slide in the presentation when they click on a predetermined word, shape, or image, thereby allowing for a more dynamic and interactive experience than can be obtained with serial presentation of slides alone. The objective of this article is to provide a tutorial describing the necessary steps to create hyperlinks and incorporate them in a variety of ways into a PowerPoint presentation.

Infarct-Associated Bone Sarcomas: Multimodality Imaging Findings.

Objective: The objective of our study was to characterize infarct-associated bone sarcoma and its imaging features.

Materials And Methods: Our databases were searched for instances of sarcoma arising in association with osteonecrosis. Demographic and imaging data were recorded.

Imaging Diagnosis of Solitary Tumors of the Phalanges and Metacarpals of the Hand.

Objective: Tumors and tumorlike lesions of the tubular bones of the hand, often incidentally discovered lesions, present a unique but challenging differential diagnosis.

Conclusion: Imaging, including both radiography and cross-sectional imaging, can allow the radiologist to generate a clinically useful differential diagnosis based on the distinguishing features of these entities. Recognition of these lesions is important because clinical management and treatment by orthopedic oncologists vary depending on the diagnosis.

From tumor to trauma: etiologically deconstructing a unique differential diagnosis of musculoskeletal entities with high signal intensity on T1-weighted MRI.

Objective: This article reviews the neoplastic and nonneoplastic abnormalities of the musculoskeletal system that contain high signal intensity on T1-weighted MRI. The physical properties accounting for the increased signal intensity as well as the key clinical and imaging characteristics of each entity are discussed.

Conclusion: Recognition of high signal intensity within musculoskeletal lesions on T1-weighted MRI can limit the differential diagnosis and can also have important clinical implications.

Osteoma of long bone: an expanding spectrum of imaging findings.

Osteoma of long bone is an extremely rare, benign bone-forming surface lesion with the largest published case series consisting of only 14 patients. The most important and often most difficult lesion to differentiate from osteoma of long bone radiographically is parosteal osteosarcoma, which is a rare, low-grade surface osteosarcoma with the potential for dedifferentiation. Reports of imaging studies of osteoma of long bone depict a well-defined ossified mass arising from the surface of the diaphysis or metadiaphysis of a long bone.

Musculoskeletal aspiration procedures.

With advances in imaging technology, there has been a significant increase in the number and range of interventional musculoskeletal image-guided procedures. One of the most commonly performed image-guided musculoskeletal interventions is the diagnostic and therapeutic percutaneous aspiration and drainage of multiple types of intra-articular, juxta-articular, and intramuscular pathologic fluid collections. These procedures may be performed under fluoroscopic, ultrasound, computed tomography, or even magnetic resonance guidance depending on the location to be accessed, type of pathology, patient characteristics, and operator preference.

Conventional radiographic evaluation of athletic injuries to the hand.

Athletic injuries to the hand are common and encompass a diverse spectrum of injuries. These injuries can include fractures, soft tissue injuries, or both. Athletic injuries to the hand can be due to a variety of mechanisms and can be seen with a variety of sports.

Musculoskeletal manifestations of neurofibromatosis type 1.

Objective: We will describe and illustrate various musculoskeletal manifestations of neurofibromatosis type 1 (NF1) encountered on imaging studies.

Conclusion: Because NF1 is one of the most common genetic disorders, radiologists should be familiar with its imaging manifestations.

Factors associated with recurrence of primary aneurysmal bone cysts: is argon beam coagulation an effective adjuvant treatment?

Background: Our goal was to assess the effectiveness and safety of argon beam coagulation as an adjuvant treatment for primary aneurysmal bone cysts, to reevaluate the adjuvant effectiveness of the use of a high-speed burr alone, and, secondarily, to identify predictors of aneurysmal bone cyst recurrence.

Methods: We retrospectively reviewed the records of ninety-six patients with primary aneurysmal bone cysts who were managed at our institution from January 1, 1983, to December 31, 2008. Forty patients were managed with curettage, a high-speed burr, and argon beam coagulation; thirty-four were managed with curettage and a high-speed burr without argon beam coagulation; and the remaining twenty-two were managed with curettage with argon beam coagulation alone, curettage with no adjuvant treatment, or resection of the entire lesion.

Radiofrequency ablation of solitary eosinophilic granuloma of bone.

Objective: This article about our initial clinical experience describes the novel application of radiofrequency ablation for the treatment of two cases of solitary eosinophilic granuloma of the bone.

Conclusion: Technical success was achieved in both cases with a prompt clinical response and no treatment-related complications. To our knowledge, this is the first description of the application of radiofrequency ablation for the treatment of solitary eosinophilic granuloma of the bone.

Pitfalls in MR image interpretation prompting referrals to an orthopedic oncology clinic.

Patients referred to the authors' hospital for evaluation on suspicion of a bone or soft-tissue malignancy frequently present to the Orthopaedic Oncology Clinic with magnetic resonance (MR) images that show typical features of nonmalignant or nonneoplastic entities. The purpose of this article is to review the benign entities that may be mistaken by the radiologist for a malignancy and thus lead to needless referral to an orthopedic oncologist. Normal hematopoietic marrow and marrow edema due to a stress reaction may mimic a neoplasm at MR imaging, but knowledge of the typical patterns and locations of these features allows an accurate radiologic interpretation.

Staging of bone tumors: a review with illustrative examples.

Objective: The radiologist plays an important role in the workup and staging of bone tumors. The purpose of this article is to review that role and to discuss recent changes to the primary malignant bone tumor staging system developed by the American Joint Committee on Cancer.

Conclusion: Knowledge of staging parameters for the diagnosis and management of bone tumors will help the radiologist to generate meaningful reports for the referring physician.

Endometriosis of the vastus lateralis muscle.

We report an unusual case of a woman who sought medical attention for a painful mass within her anterolateral left thigh. The patient's symptoms waxed and waned with her menses. Magnetic resonance imaging revealed a 3 cm mass isointense to muscle and surrounded by a rim of decreased signal intensity on T1-weighted images.

Multifocal metachronous giant cell tumor in a 15-year-old boy.

We report a case of multifocal metachronous giant cell tumor (GCT) that involved the fibula, tibia, and sacrum of a 15-year-old boy. Multifocal GCT of bone presenting in children is an exceedingly rare phenomenon; however, there is evidence that multifocal GCT presents, on average, at a younger age than solitary GCT. Pediatric radiologists should be aware of this when encountering a single lesion with characteristic radiographic features of GCT and when encountering multiple lytic skeletal lesions.