Duodenal obstruction secondary to date stone impaction.

The use of non-invasive imaging techniques to rapidly establish diagnosis has always been an attempt in emergency situations. Recent significant advances in imaging technology have changed approach and algorithm of many emergencies. We present a case of swallowed date stone resulting in duodenal obstruction in a 10-year old child.

Ultrasound wall-sign in pulmonary echinococcosis (new application).

Purpose: We report our experience in diagnosing pulmonary cystic echinococcosis using an ultrasound sign related to the cystic wall.

Materials And Methods: 40 patients with 46 cysts, suspected of pulmonary echinococcosis, based on plain chest radiographs and clinical findings, were examined by ultrasound over a 9-year period (1996 - 2004), and followed up until discharge. We applied our long experience with echinococcal cysts utilising the wall sign (WS) to diagnose pulmonary hydatid disease.

Are they spherules of ovarian cystic teratoma or daughter cysts of echinococcosis?

Teratoma is a germ cell tumour which accounts for approximately 15-20 % of all ovarian cancers. The tumour is possibly derived from ectodermal differentiation of totipotent cells or mitotic germ cells. We present a case of a 37-year-old female patient with multiple spherical structures floating in a large pelvic-abdominal cystic mass seen on sonographic images.