morphine and Mesenteric-Cyst

Intra-abdominal cystic lesions are increasingly recognized in the newborn because of the advent of routine antenatal ultrasonography. As these lesions are often asymptomatic or non-specific in clinical presentation in the newborn, imaging by ultrasonography has an important role in diagnosis. We present a pictorial review of the commonly encountered intra-abdominal cystic lesions in the newborn, with emphasis on ultrasonographic features that can aid differentiation between the various lesions.

Topics: Abdomen; Choledochal Cyst; Cysts; Diagnosis, Differential; Female; Gastrointestinal Diseases; Humans; Infant, Newborn; Meconium; Mesenteric Cyst; Ovarian Cysts; Ultrasonography

Topics: Abnormalities, Multiple; Colonic Diseases; Digestive System Abnormalities; Duodenal Obstruction; Esophageal Atresia; Female; Hernia; Humans; Ileum; Infant, Newborn; Intestinal Atresia; Intestinal Obstruction; Intestines; Jejunum; Male; Meconium; Megacolon; Mesenteric Cyst; Polyhydramnios; Pregnancy; Pylorus; Radiography; Vitelline Duct

Fetus-in-fetu (FIF), a rare congenital anomaly, is a fetus incorporating the well-differentiated tissue of its twin. The authors describe a newborn who presented with massive abdominal distension and severe respiratory distress. Abdominal x-rays showed multiple calcifications. The diagnosis of meconium pseudocyst was made. At emergency laparotomy an irregular fetiform mass was found in the retroperitoneum lying within a fluid-filled amniotic sac. It contained a vertebral column, 10 limblike structures, and cranial and caudal ends, supporting the diagnosis of fetus-in-fetu. This case highlights several important points. FIF often is overlooked in the differential diagnosis of a newborn abdominal mass and, as in this case, may be confused with meconuim pseudocyst. FIF should be differentiated from a teratoma because of the latter's malignant potential. Because this diagnosis is not made until pathological analysis, all parts of the mass should be removed to prevent malignant recurrence.

Topics: Abdomen; Adult; Calcinosis; Diagnosis, Differential; Female; Fetus; Follow-Up Studies; Humans; Infant, Newborn; Laparotomy; Meconium; Mesenteric Cyst; Peritonitis; Pregnancy; Radiography, Abdominal; Teratoma; Treatment Outcome; Twins, Monozygotic

Ultrasonography has proven to be a helpful imaging modality in evaluating the child with a distended gasless abdomen. The presence of an unsuspected mass can easily be detected as well as the presence of ascites and/or abnormally dilated loops of small bowel. Thickened loops of bowel can also be easily detected in the abdomen with very little gas. Closed loop obstruction and intussusception, as well as meconium ileus equivalent (distal intestinal obstruction syndrome), are described.

Topics: Abdomen; Child, Preschool; Female; Humans; Ileal Diseases; Infant; Infant, Newborn; Intestinal Obstruction; Intussusception; Male; Meconium; Mesenteric Cyst; Ultrasonography