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Spleen rupture has been a rare but feared complication in patients with infectious mononucleosis. There have been many cases reported during the last decade. However, it has rarely been mentioned among the young infant group. Here, we present a case of an infant, two months of age, who suffered from spleen rupture due to infectious mononucleosis, and was latter cured by himself under conservative treatment.

Recognition of rejection and other hepatic complications by needle biopsy plays a significant role in the management of liver allograft recipients. In this report, 22 pediatric patients (below 18 years old) were selected from the 37 liver transplants. Seven of the 22 cases have an uneventful posttransplant course. The most common cause of allograft injury in these patients appeared to be acute cellular rejection. It occurred in 7 (31.8%) of the 22 cases and was the primary process in 8 of the 25 episodes of liver dysfunction. Other etiologies, such as opportunistic viral infection (3 cases), biliary obstruction (2 cases), preservation injury (1 case), and vascular obstruction (1 case) were less common. Acute graft rejection causing liver dysfunction was associated with a mixed portal inflammation, destruction of the interlobular bile ducts, and varied degree of venous endotheliitis, followed by centrilobular hepatocyte necrosis. Chronic rejection was not seen in our pediatric cases. Cold ischemic injury causing transient graft dysfunction as seen in one of our patients demonstrated focal, limited areas of hepatocyte necrosis, mild centrilobular hepatocyte ballooning, and cholestasis without evidence of bile duct damage. More severe ischemic injury resulted from vascular complication causing diffuse hepatocyte necrosis was seen in one patient with hepatic vein thrombosis. The histologic patterns observed were not pathognomic; however, liver biopsies were helpful in suggesting the probable cause of liver dysfunction and in predicting subsequent allograft recovery when used in conjunction with clinical information, radiologic, and other laboratory tests.

Gastric perforation is a rare abdominal catastrophe which associated with high mortality in newborn infants. From June 1978 to July 1991, twelve cases of neonatal gastric perforation presented at Chang Gung Memorial Hospital. Male to female ratio was 9:3. The most common presenting signs were abdominal distension (100%), feeding intolerance (92%), respiratory distress (67%) and poor activity (58%). All cases had significant symptoms between two and five days of age. All of the abdominal plain film showed pneumoperitonium. The most common site of perforation was the great curvature of the stomach (83%). Among the 10 pathological reports available, 8 cases had ischemic change and 2 cases had hemorrhage and inflammatory cell infiltration. There was a high mortality rate of 58% in this series. Male, hyponatremia (serum sodium130 meq/l) and metabolic acidosis (pH7.3) were poor prognostic factors. This report suggests that early diagnosis and early management before clinical deterioration of the metabolic status may improve prognosis for neonatal gastric perforation patients.

Vallecular cyst is one of the unusual causes of respiratory distress in newborns. Recently we encountered a case of 22-day-old male infant admitted due to respiratory distress, stridor and poor feeding. A lateral view of neck X-ray examinations demonstrated a soft tissue mass in the hypopharyngeal area. On direct laryngoscopic examination, a cystic mass was noted on the left side surface of the epiglottis. The cyst appeared to be involving the vallecula compressing the tongue base and epiglottis. The cyst was partially excised and marsupialized. It was proved to be a vallecular cyst by pathological examination.