morphine and Teratoma

A case of congenital immature gastric teratoma along with spontaneous gastric perforation in a 1-day-old boy is presented. The clinical features are similar to those of meconium peritonitis. Coincidentally, the child had an arachnoid cyst at 25 months of age. To the best of the authors knowledge, this case of congenital immature gastric teratoma associated with gastric perforation mimicking meconium peritonitis, is the first description in the English-language literature.

Topics: Diagnosis, Differential; Humans; Infant; Male; Meconium; Peritonitis; Rupture, Spontaneous; Stomach Neoplasms; Teratoma; Ultrasonography, Prenatal

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

A newborn 2.4-kg baby girl with a prenatal diagnosis of sacrococcygeal teratoma by ultrasound had a soft cystic mass extending from the infracoccygeal region into the right buttock. The cyst contained meconium leading to a large retroperitoneal cavity. The cyst was drained through an extended buttock incision, and healed without a site of bowel perforation ever identified. Meconium pseudocyst should be included in the differential diagnosis of sacrococcygeal and buttock tumors in the newborn.

Topics: Buttocks; Cysts; Diagnosis, Differential; Female; Humans; Infant, Newborn; Meconium; Neoplasms, Germ Cell and Embryonal; Peritonitis; Teratoma

Topics: Adult; Bone Neoplasms; Cysts; Diagnosis, Differential; Diagnostic Errors; Female; Fetal Diseases; Humans; Infant, Newborn; Intestinal Perforation; Meconium; Pregnancy; Sacrococcygeal Region; Teratoma

Topics: Abdomen, Acute; Cysts; Diagnosis, Differential; Digestive System Abnormalities; Female; Follow-Up Studies; Hemangioma; Humans; Hydronephrosis; Infant, Newborn; Infant, Newborn, Diseases; Kidney Diseases; Kidney Neoplasms; Liver Neoplasms; Male; Meconium; Neuroblastoma; Ovarian Cysts; Peritonitis; Polycystic Kidney Diseases; Renal Veins; Retroperitoneal Neoplasms; Stomach Neoplasms; Teratoma; Thrombophlebitis; Uterine Diseases; Vaginal Diseases

Topics: Calcinosis; Diagnosis, Differential; Humans; Infant, Newborn; Male; Meconium; Peritonitis; Radiography; Scrotum; Teratoma; Testicular Hydrocele; Testicular Neoplasms