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Aneurysm of the cervical carotid artery is rare and usually presents with ischemic symptoms as opposed to local mass effect. The authors report a case of recurrent laryngeal nerve palsy secondary to mass effect from a cervical internal carotid artery aneurysm.

Bilateral adrenal hemorrhage is a rare and potentially life threatening situation in adults. The clinical presentation is non-specific, and the diagnosis is based on imaging. The purpose of this report is to provide an illustrative case of spontaneous bilateral adrenal hemorrhage that occurred during pregnancy. The sonographic and computed tomographic findings included large bilateral adrenal hematomas with no evidence of underlying malignancy. Since bilateral adrenal hemorrhage is a rare but potentially life threatening situation, prompt laboratory and imaging evaluation are essential and may reduce both morbidity and mortality.

Intra-abdominal desmoplastic small round cell tumor is an extremely rare entity with poor prognosis. The authors report a case of intra-abdominal desmoplastic small round cell tumor and describe the imaging and pathologic features of the tumor.

Emphysematous pyelonephritis (EPN) is a rare and severe form of acute pyelonephritis. Escherichia coli accounts for 60% of the cases. Predisposing factors are: diabetus mellitus, recent urinary tract infection and obstruction. There is a female predominance (2/1). Conventional radiography reveals the renal emphysema in 85% of the cases. Ultrasonography shows hyperechoic areas corresponding to the gaz. CT scan is the best technique, allowing the exact localization of the gaz inside the renal parenchyma. The natural course of the disease allows its radiologic classification in 4 grades. EPN has a poor prognosis if only a medical treatment is initiated. Every urinary tract infection, in a diabetic patient must be treated, and must lead to a radiologic exploration, which allows an early detection of severe forms of the disease.