ABSTRACT
Liver fluke-related biliary disease is rare in the United States, as locally-acquired liver fluke infection is uncommon. Presented here is a case of biliary obstruction secondary to fluke infection in a Burmese immigrant to the United States. Imaging findings are presented using computed tomography, ultrasound, magnetic resonance imaging, and fluoroscopy which revealed severe biliary dilatation resulting from large obstructing stones. The offending parasite was identified via stone analysis following surgical extraction.
ABSTRACT
Bouveret syndrome occurs when a gallstone passes into the duodenum from a fistulous communication between the gallbladder and the duodenum. This is an uncommon cause of abdominal pain which is often diagnosed following surgery. Most imaging findings of Bouveret syndrome are limited to computed tomography. Shown here are fluoroscopic images of the upper gastrointestinal system in this uncommon disorder.
ABSTRACT
OBJECTIVE: Xanthogranulomatous (XG) processes are rare inflammatory conditions with the characteristic pathologic feature of lipid-laden macrophages or histiocyte cells. Imaging findings are nonspecific and can simulate aggressive neoplastic processes. XG processes can be caused by infection, inflammation, histolytic process, or an inherited lysosomal disorder. XG infectious processes are mainly seen in cholecystitis and pyelonephritis, but several other organs can also be involved. Histiocytic processes can be divided into Langerhans and non-Langerhans cell histiocytosis. The non-Langerhans cell histiocytosis entities include Erdheim-Chester disease, Rosai-Dorfman disease, juvenile xanthogranuloma, and hemophagocytic lymphohistiocytosis. The inherited lysosomal disorders resulting in XG processes include Nieman-Pick, Gaucher, and other lysosomal storage disorders. CONCLUSION: Radiologists need to be able to recognize features of xanthogranulomatous processes to help facilitate patient management.
