McKittrick-Wheelock syndrome: a rare case report of acute renal failure.

Giant tubular-villous adenoma of the rectum can determine secretory diarrhea, associated with a depleting syndrome of prerenal acute renal failure, hyponatremia, hypokalemia and hypoproteinemia. These symptoms are known as the McKittrick-Wheelock syndrome, and there are about 50 cases reported in literature. We present the case of a 59-year-old woman presented to our emergency department with abdominal pain, prerenal azotemia, and electrolyte disturbances with a background of chronic diarrhea, caused by a giant rectal tumor. Conservative therapy initially improved and normalized renal function, and made surgical resection of the tumor possible.

Splenic cystic lymphangioma with atypical ultrasound findings.

Splenic lymphangiomas are rare benign tumors occurring more frequently in children. Because of their asymptomatic growth, splenic lymphangiomas are usually suspected based on incidental findings, the diagnosis relying on different imaging techniques and requiring histological confirmation. The rarity of the disease and its atypical imaging findings make the diagnosis of splenic lymphangiomas challenging. We describe the case of an isolated splenic cystic lymphangioma affecting an elderly female patient. The patient was asymptomatic and the blood tests were normal. The tumor appeared on gray-scale ultrasound as an inhomogeneous, mostly hyperechoic septated mass, which is atypical for a cystic lymphangioma. Contrast-enhanced ultrasound and contrast-enhanced computed tomography suggested the benign nature of the tumor and narrowed the diagnosis. The tumor received histopathological confirmation after splenectomy. Various CT and MRI findings in splenic lymphangiomas have been described, but very few reports regarding CEUS exist to this point.

Inflammatory myofibroblastic tumor of the gallbladder: imaging aspects.

Inflammatory myofibroblastic tumors (IMT) are rare benign lesions that may often be mistaken for malignancies due to their imaging resemblance. There are a limited number of case reports in the literature on the location at the level of the gallbladder. We present a case of IMT of the gallbladder that emphasizes the importance of conventional ultrasound as the primary method of detection, as well as the role of contrast-enhanced ultrasound and strain elastography in describing the lesion, thus contributing to the differential diagnosis.