Subject(s)
Diagnostic Imaging/methods , Medical Oncology/methods , Pancreatic Neoplasms/diagnosis , Pancreatic Neoplasms/pathology , Adenocarcinoma/diagnosis , Adenocarcinoma/pathology , Endoscopy/methods , Fluorodeoxyglucose F18/pharmacology , Humans , Magnetic Resonance Imaging/methods , Pancreatitis/diagnosis , Pancreatitis/pathology , Positron-Emission Tomography/methods , Radionuclide Imaging/methods , Sensitivity and Specificity , Tomography, X-Ray Computed/methods , Ultrasonography/methodsABSTRACT
The educational objectives for this self-assessment module are for the participant to exercise, self-assess, and improve his or her understanding of the imaging features of sarcoidosis and the role of imaging in the clinical management of patients with sarcoidosis.
Subject(s)
Diagnostic Imaging , Sarcoidosis/diagnosis , Diagnosis, Differential , Fluorodeoxyglucose F18 , Humans , Magnetic Resonance Imaging , Positron-Emission Tomography , Radiopharmaceuticals , Sarcoidosis/mortality , Tomography, X-Ray ComputedABSTRACT
OBJECTIVE: The objectives of this article are to discuss the epidemiology and natural history of sarcoidosis; to review the classic imaging features of sarcoidosis on radiography, CT, and 67Ga nuclear medicine scans; and to present clinical examples of sarcoidosis as seen on PET and PET/CT in the chest, abdomen and pelvis, and bones. CONCLUSION: The imaging features of sarcoidosis are diverse and can be seen on a variety of imaging techniques. It is important for radiologists and nuclear medicine physicians to recognize the common imaging features and patterns of sarcoidosis in order to raise the possibility in the appropriate clinical setting.
Subject(s)
Sarcoidosis/diagnostic imaging , Tomography, Emission-Computed/methods , Tomography, X-Ray Computed/methods , Diagnosis, Differential , Fluorodeoxyglucose F18 , Humans , RadiopharmaceuticalsABSTRACT
Acute pancreatitis is a common disease with potentially serious outcomes. Multiple imaging modalities can be used to evaluate the disease process and its associated complications. Familiarity with the pathogenesis of this disease, indications for imaging, imaging protocols, staging systems, and the strengths and weaknesses of various modalities will help the radiologist optimize patient care.
Subject(s)
Magnetic Resonance Imaging/methods , Pancreatitis/diagnosis , Tomography, X-Ray Computed/methods , Ultrasonography, Interventional/methods , Acute Disease , Humans , Pancreas/diagnostic imaging , Pancreas/pathology , Radiography, Interventional/methods , Severity of Illness IndexABSTRACT
The objective of this study was to report the clinical outcome of patients with an appendicolith on computed tomography (CT) who did not undergo appendectomy on initial presentation. Reports from 45,901 abdominal CT examinations performed between March 2000-March 2004 containing the words "appendicolith" or "fecalith" were identified. Patients with appendicoliths not initially undergoing appendectomy were followed to assess re-presentation with abdominal pain ultimately requiring appendectomy. Seventy-four patients had an appendicolith on CT report, were discharged without surgery, and had clinical follow-up. Fifty-two of 74 (70%) patients had no appendiceal symptoms, were given an alternate diagnosis, and did not return with appendicitis. Twenty-two of 74 (30%) patients were discharged without acute appendicitis but with possible appendiceal symptoms. Five of these 22 (23%) patients returned with pathologically proven acute appendicitis, and all had possible appendiceal symptoms at initial presentation. An appendicolith may be a marker of increased risk for appendicitis but is not an indication for appendectomy.
