Clinical imaging
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Case Reports
Plain radiography may underestimate the burden of body packer ingestion: A case report.
Body packing refers to the intracorporeal concealment of illicit drugs. Here we report the case of a 55-year-old body packer who presented with palpitations, visual hallucinations, and a sense of impending death. ⋯ As the contraband market evolves new techniques to evade detection, evaluation of the burden of body packer ingestion has become increasingly challenging. As demonstrated in this case, plain radiography can grossly underestimate the burden of ingestion.
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Small bowel intussusception (SBI) in pediatric patients resolves spontaneously in the majority of cases. Pathologic small bowel intussusception with a lead point is rare in children. ⋯ This case emphasizes unique, atypical ultrasound findings that may be encountered in small bowel intussusception, with correlative radiographic, CT (computed tomography) and intra-operative findings. Increased awareness of these atypical imaging features can lead to early diagnosis and decrease the risk of potential complications including mesenteric venous thrombosis, bowel ischemia and necrosis.
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To determine the relationship between body mass index (BMI) and fluoroscopy time and radiation dose during fluoroscopy-guided glenohumeral joint injections. ⋯ Intra-articular glenohumeral joint injection fluoroscopy time and radiation dose are not affected by body mass index, age, gender, trainee-involvement, first versus repeat injection, or needle length. This procedure is associated with a dose of radiation that likely has minimal to no clinical significance.
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To assess the feasibility of positron emission tomography/magnetic resonance imaging (PET/MR) with 18F-fluordeoxyglucose (FDG) for initial staging of sarcoma. ⋯ FDG PET/MR shows excellent agreement with the currently preferred imaging methods (CT and MR) in initial staging of sarcoma.
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Comparative Study
Relationship between the corpus callosum and neurocognitive disabilities in children with NF-1: diffusion tensor imaging features.
Mild neurocognitive disabilities are commonly observed in children with neurofibromatosis type 1 (NF-1). Enlargement of the corpus callosum (CC) is one of the findings in NF-1, but the pathogenesis has not yet been clarified. In this study, we investigated whether diffusion tensor imaging (DTI) features of CC differed between children with NF-1 and healthy control subjects, and we tried to evaluate the association between the microstructural integrity of CC and neurocognitive disabilities, based on apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values. ⋯ The DTI changes in the genu of CC in children with NF-1 may indicate subtle structural damage, although conventional MRI is normal. ADC and FA changes in the genu may be due to loss of axonal integrity and vasogenic-like edema in the axons responsible for some intellectual functions. DTI may help clarify the underlying pathophysiology of CC changes in relation to neurocognitive function disorders in children with NF1.