Douglas S Katz

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..The potential and theoretical fetal and maternal risks from such imaging are also reviewed...

..In selected conditions, the CT findings are highly specific. The imaging literature of some of the common as well as some of the less common entities is reviewed, and clues to narrowing the differential diagnosis are provided...

..Radiologists and clinicians need to be aware of these disorders, particularly with the widespread utilization of computed tomography (CT) in the management of patients with acute abdominal pain...

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..If ionizing radiation is used, one must adhere to the principle of using a dose that is as low as reasonably achievable after a discussion of risks versus benefits with the patient...

..There has been an exponential increase in the more recent literature regarding pancreatic cystic lesions. The purpose of this review article is to provide a concise overview of these pancreatic cystic lesions...

..We report the radiology and pathology of a patient with a SH, with emphasis on the computed tomographic and (18)F-fluorodeoxyglucose positron emission tomography findings, and review the literature on this unusual tumor...

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..We report the radiologic and pathologic findings of a patient with a carcinosarcoma believed to have arisen from the colon and which involved the adjacent mesentery and omentum...

..Bacterial pneumonia is the most frequent cause of parapneumonic effusion; however, knowledge of the relationship between parapneumonic effusion and the presence of pericardial fluid in children is limited. We examined this relationship...

..Analogous to the sonographic diagnosis of ovarian torsion, the imaging findings may be pathognomonic on CT and should be prospectively recognized for prompt diagnosis...

..In this Radiology-Pathology Conference, the clinical presentation and imaging findings of a patient with ACC of the pancreas, along with the differential diagnosis, are reviewed...

..We report the radiology and pathology of a patient who presented with gastric wall calcifications on CT and a mucin-producing adenocarcinoma at pathologic examination of a gastric biopsy specimen...

..Such an association has not been previously published to our knowledge...

..With the advent of 16-64 detector CT, in combination with bolus tracking, we believe that the overall dose of gadolinium needed for diagnostic CTA examinations, while relatively high, can be safely administered...

..I-131 uptake in a cystadenofibroma is extremely rare and has been reported only once to our knowledge...

..Heretofore, optical colonoscopy has been the mainstay in this screening. We discuss these issues and the continuing controversies concerning CTC...

..Lymphoma or other tumors rarely infiltrate the spermatic cord, and have only very rarely been demonstrated on PET imaging...

..Accurate preoperative diagnosis and differentiation from renal carcinoma is difficult. We report the radiology and pathology of a patient with bilateral renal oncocytomas and review the literature of this rare presentation...

..This article discusses the imaging findings of DVT, and the role of these imaging examinations in the evaluation of patients with suspected DVT...

..The purpose of this atlas article is to demonstrate and review key features of various cutaneous and subcutaneous lesions, both benign and malignant, which can result in hypermetabolism on FDG-PET or PET-CT scans...

..We describe the CT appearance of a biopsy-proven case of primary small intestinal lymphangiectasia in a 3-year-old boy, and we will review the limited literature on the CT findings in this disorder in adults...

..Awareness of this entity will permit the radiologist to suggest timely diagnosis and intervention when presented with a similar case...

..We present a 26-year-old pregnant woman with metastatic disease to the posterior cul-de-sac, lungs, liver and retroperitoneum, which collectively have not been previously reported in a single patient to our knowledge...

..We report a unique presentation of an infant with a pedunculated, anterior chest wall mass, which was identified as a bronchogenic cyst...

..The common imaging features of segmental testicular infarction and the clinical literature are reviewed, with an emphasis on ultrasound, utilizing seven recent cases from three institutions...

..A computed tomographic scan of the abdomen and pelvis demonstrated a large adrenal mass, and subsequent biopsy showed primary adrenal lymphoma...

..We report the radiology and pathology findings on a patient with colonic schwannoma, and review the literature on this very rare tumor...

..We report the radiologic and pathologic findings of a newborn with a choledochal cyst and review the etiology, diagnostic considerations, and management of this entity...

..To prospectively evaluate and compare the diagnostic accuracy of unenhanced helical computed tomography (CT) for patients with nontraumatic acute abdominal pain with that of traditional abdominal radiography...

..We report the MR appearance of a RTK in an 18-month-old boy, review the literature on its imaging features, and discuss the differential diagnosis of solid renal tumors in children...

..Although a variety of protocols for CTVPA may be implemented, including a contiguous helical acquisition, obtaining 5- or 10-mm-thick images every 4 cm provides a high degree of accuracy and decreases overall radiation dose...

..We report the radiology and pathology findings on a patient with an incidental posterior mediastinal ganglioneuroma and review the literature on this uncommon tumor...

..We report the radiology and pathology of a patient with juvenile GCT and review the literature of this rare tumor...

..Ultrasonography, computed tomography, and MR imaging may be used to depict an endometriotic lesion, exclude endometriosis, or provide evidence for an alternative diagnosis. © RSNA, 2012...

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..The purpose of this article is to retrospectively review the radiologic and clinical findings in patients with angiotensin-converting enzyme inhibitor (ACEI)-induced small-bowel angioedema, with an emphasis on CT findings...

..We present a 38-year-old man with primary Ewing's sarcoma of the perinephric fat and kidney diagnosed 2 years earlier who subsequently developed an infiltrating left renal and perinephric mass...

..Brown fat in LHIS may be hypermetabolic on 18-FDG-PET examinations, and familiarity with the prevalence and features of LHIS will avoid misdiagnosis of metastatic disease...

..Such patients can develop gastrointestinal hemorrhage with or without prior pelvic irradiation, due to arteriocolic fistulas. Angiography permits the correct diagnosis and subsequent embolotherapy...

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..0. CONCLUSION: Patients with head injury, normal GCS scores, and no focal neurologic deficits and who are receiving the anticoagulants heparin or coumadin may not necessarily require emergency CT...

..A retrospective radiographic study involving analysis of abdominal and pelvic computed tomography (CT) scans obtained on patients presenting with clinical conditions other than back pain...

..The purpose of this study was to evaluate the clinical significance of the "flat cava" sign on abdominal CT scans in hospitalized patients without trauma...

..We investigated whether the presence or absence of an appendix is associated with CDI recurrence...

..The CT findings of a congenital portacaval shunt are presented, and the literature on this unusual anomaly is reviewed...

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..The presence or absence of blood on urinalysis cannot be used to reliably determine which patients actually have ureteral stones...

..The emergency imaging features of LS in five cases are reviewed with emphasis on computed tomography of the chest and neck...

..We report the radiology and pathology of a patient with xanthogranulomatous cholecystitis (XC) and review the literature on this unusual condition...

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..Radiotracer uptake has been noted very rarely in the peritoneal cavity, following radionuclide cisternography; a case of CSF leak and radiotracer uptake in the peritoneal cavity has previously been reported...

..There were no significant differences in qualitative or quantitative data for the two groups. Intravenous glucagon is therefore not routinely recommended for helical CT of the abdomen...

..We report a case in which a large jackstone calculus was incidentally detected during abdominal sonography in a 75-year-old man...

..Unlike cardiac pacemakers, electrical stimulators are MRI compatible under certain circumstances...