Fournier's gangrene is a rapidly progressing necrotizing fasciitis involving the perineal, perianal, or genital regions and constitutes a true surgical emergency with a potentially high mortality rate. Although the diagnosis of Fournier's gangrene is often made clinically, emergency ultrasonography and computed tomography lead to an early diagnosis with accurate assessment of disease extent. The Authors report their experience in ultrasound diagnosis of one case of Fournier's gangrene of testis illustrating the main sonographic signs and imaging diagnostic protocol. Keywords Fournier's gangrene Á SonographyRiassunto La gangrena di Fournier è una fascite necrotizzante a rapida progressione che coinvolge il perineo, le regioni perianale e genitali e costituisce una vera emergenza chirurgica con un tasso di mortalità potenzialmente elevato. Anche se la diagnosi di gangrena di Fournier è spesso fatta clinicamente, l'ecografia in emergenza e la tomografia computerizzata portano ad una diagnosi precoce, con una valutazione accurata dell'estensione della malattia. Gli Autori riportano la loro esperienza di diagnosi ecografica in un caso di gangrena di Fournier del testicolo, che illustra i principali segni ecografici ed i protocolli di diagnostica per immagini.

Compared with MR cholangiography at 1.5 T, MR cholangiography at 3.0 T offers improved contrast-to-noise ratio and a higher level of confidence for depicting intrahepatic variants.

Urinary schistosomiasis is a tropical infection with a high endemicity in the developing countries and is included in the list of "Neglected Tropical Diseases". It is caused by a parasitic worm, Schistosoma haematobium, and it has come into the spotlight as a major cause of urogenital disease. Furthermore, it is linked to bladder cancer and it is a predisposing factor for HIV/AIDS. In this case, we describe a bladder schistosomal disease in a young African boy with persistent macroscopic hematuria and its ultrasound diagnostic bladder imaging.

Renal infarction is a rare cause of referral to the emergency department, with very low estimated incidence (0.004%–0.007%). Usually, it manifests in patients aged 60–70 with risk factors for thromboembolism, mostly related to heart disease, atrial fibrillation in particular. We report a case of idiopathic segmental renal infarction in a 38-year-old patient, presenting with acute abdominal pain with no previous known history or risk factors for thromboembolic diseases. Because of its aspecific clinical presentation, this condition can mimic more frequent pathologies including pyelonephritis, nephrolithiasis, or as in our case appendicitis. Here we highlight the extremely ambiguous presentation of renal infarct and the importance for clinicians to be aware of this condition, particularly in patients without clear risk factors, as it usually has a good prognosis after appropriate anticoagulant therapy.