Sonographic appearance of canal of Nuck hydrocele.

We present a case of a relatively uncommon entity in a 17-year-old girl who presented to the emergency department with right inguinal pain and discomfort. On sonography, she was thought to have a hydrocele of a patent processus vaginalis, although differentials could not be excluded. The hydrocele was subsequently confirmed at surgery.

Gastroesophageal intussusception: a new cause of acute esophageal obstruction in children.

Gastrointestinal intussusception with obstruction is common in the small bowel and colon; however, such a process is not known to cause esophageal obstruction. Recent experience with gastroesophageal intussusception permits discussion of diagnosis and consideration of treatment options. A 3-year-old child presented with acute esophageal obstruction.

Echocardiographic evaluation of umbilical venous catheter placement.

Objective: To compare techniques for guiding and confirming placement of umbilical venous catheters (UVCs) using two-dimensional echocardiography.

Study Design: Fifty-three newborns admitted to our neonatal intensive care unit who required an UVC or who were transferred within 24 hours of UVC placement at a referring hospital were studied. UVC position was assessed by antero-posterior (AP) chest radiography (CXR), lateral CXR, and oxygenation data.