Early and accurate diagnosis of this syndrome is important so that adequate and prompt surgical therapy (excision of the vaginal septum) can provide relief of pain and prevent further complications. It is also advisable to look for an obstructed Müllerian system whenever a multicystic dysplastic kidney or the absence of a kidney is discovered in a fetus, or girl postnatally.

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Isolated torsion of the fallopian tube is a rare clinical entity, especially in adolescents and at menarche. The diagnosis is essentially made at laparoscopy or at laparotomy because of nonspecific clinical signs. We present a case of isolated tubal torsion in a 12-year-old girl a few days after menarche, highlighting the sonographic and MR findings. Both techniques demonstrated the enlarged and tortuous fallopian tube with normal ovaries and uterus, but MR was also able to characterize contained blood and absent vascular supply. Although this condition is uncommon it should be considered as a cause of acute pelvic pain in adolescents because of the possibility of salvage surgery with early diagnosis. Sonography and MRI have a complementary role in this diagnosis.

Despite its rarity, PPB should be considered in the evaluation of cystic or solid masses in children with respiratory distress. Plain film radiography alone is unable to distinguish between PPB and cystic malformations. CT represents the gold standard, although MRI can show the imaging features of solid enhancing nodules inside fluid-filled cavities, a mass causing lung compression, mediastinal shift, frequent pleural effusion, and no chest wall invasion. No preoperative imaging can reliably differentiate between congenital cystic lesions and PPB type I.

A good correlation between US and BS measurements of BV was found in children aged > 7 years and in those with a BV > 20% of expected bladder capacity. Thus, BS avoids the need for standard US equipment to assess BV for schoolchildren with voiding dysfunction. Nevertheless, a dedicated BS instrument should be used in younger children.

Renal vein thrombosis and adrenal hemorrhage can both be encountered in the neonatal period and they may occur at the same time. Inferior vena cava thrombosis can complicate some cases. These diseases can be easily diagnosed by means of ultrasound. The authors present 4 cases in which newborns were affected by renal vein thrombosis associated with adrenal hemorrhage and caval thrombosis, evaluated by means of ultrasound. The echographic aspect of renal, adrenal and caval involvement is described.

We describe a 19-year-old cystic fibrosis patient, with pancreatic insufficiency since the age of 4 who presented at the age of 13 with postprandial abdominal pain. Ultrasonography and computed tomography showed several pancreatic cysts that progressively increased in diameter over 6 years. The lack of association with clinical and biochemical signs of acute pancreatitis is highlighted.

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