Unusual hepatic tumor with features of mesenchymal hamartoma and congenital solitary nonparasitic cyst.

We report a hepatic tumor in an adolescent that does not fit into any of the described categories of liver tumors. The patient presented with hepatomegaly, abdominal pain, and normal liver function test; the tumor was cystic in imaging studies. The resected specimen, result of a partial hepatectomy, measured 21 cm and was multicystic with solid areas.

Bilateral eventration of the diaphragm with perforated gastric volvulus in an adolescent.

Bilateral congenital eventration of the diaphragm almost uniformly presents in infancy with respiratory compromise and is associated with a high mortality rate. Delayed presentation of diaphragmatic eventration in older children and adults may be associated with acute gastric volvulus. Thus, any patient with abdominal pain, vomiting, or nonspecific gastrointestinal symptoms in association with abnormal diaphragmatic findings on chest x-ray should undergo further diagnostic workup with upper gastrointestinal series or computed tomography (CT) scan.

Eighteen years' experience with neonatal Hirschsprung's disease treated by endorectal pull-through without colostomy.

Methods: In the past 18 years, the authors have treated 84 patients with Hirschsprung's disease. Of these, 43 patients were under 1 month of age and underwent endorectal pull-through without colostomy. Some have undergone follow-up for as long as 18 years.

Papillary-cystic neoplasm of the pancreas.

Papillary-cystic neoplasm of the pancreas is a rare, nonfunctioning low-grade malignant tumor seen in young patients, most often female. Ultrasound and CT show a circumscribed, solid nonhomogeneous mass with cystic areas, with peripheral but not central enhancement and occasional calcification. Prognosis after excision is usually excellent.

Idiopathic infant pyoceles.

Three infants presented with acute scrotal swelling, erythema, and a tender irreducible firm mass within the scrotum. All patients were operated upon with the preoperative diagnosis of testicular torsion. At operation, grossly purulent fluid was found in a hydrocele sac.