A rare case of neonatal colonic obstruction caused by a solitary intestinal tumor

Background Intestinal obstruction caused by a tumor is very rare in newborns, and the preoperative diagnosis is difficult. We herein report a rare case of neonatal colonic obstruction due to solitary intestinal myofibroma with characteristic findings on gastrografin enema and the surgical strategy. Case presentation A 4-day-old female infant presented to our neonatal intensive-care unit with abdominal distention and bilious vomiting after feeding. A gastrografin enema showed that the transverse colon near the hepatic flexure was not delineated at the oral side. When pressure was applied, a small amount of contrast material moved into the mouth in the form of threads. Microcolon was not observed, and stenosis of the transverse colon was found 9 cm from the Bauhin valve. Partial resection and end-to-end anastomosis were performed. A pathological examination of the resected specimen suggested gastrointestinal stromal tumor (GIST). After obtaining a second opinion, the histology and immunohistological markers were deemed characteristic of infantile myofibroma. Conclusion If string sign and a napkin ring appearance are found in a case of neonatal intestinal obstruction, surgery should be performed with a tumor in mind. In cases of neonatal intestinal obstruction caused by a tumor, the lesion should be resected with a sufficient surgical margin before the pathological examination.

Laparoscopic Repair of a Diaphragmatic Hernia Associated with Radiofrequency Ablation for Hepatocellular Carcinoma: Lessons from a Case and the Review of the Literature

We describe the case of a patient with a diaphragmatic hernia associated with radiofrequency ablation for hepatocellular carcinoma who was successfully treated by laparoscopic surgery. A 62-year-old man with a long history of hepatitis C-induced liver cirrhosis was admitted to our institution because of recurrent postprandial periumbilical pain. Eight years earlier, he had undergone radiofrequency ablation for hepatocellular carcinoma at hepatic segment VIII. Computed tomography, gastrografin enema examination revealed transverse colon obstruction because of a diaphragmatic hernia. We diagnosed diaphragmatic hernia associated with the prior radiofrequency ablation treatment. The patient underwent laparoscopic repair of the diaphragmatic hernia. Though the patient experienced the recurrence once, relaparoscopic treatment has improved the patient's conditions. Thus, diaphragmatic hernia can develop as a complication of radiofrequency ablation treatment. A laparoscopic approach is safe, feasible, and minimally invasive, even in patients with cirrhosis who develop iatrogenic diaphragmatic hernia as a complication of radiofrequency ablation treatment.

An unusual case of pediatric abdominal pain

ABSTRACTChronic and recurrent abdominal pains are common complaints in children and adolescents, but the evaluation in the emergency department (ED) can be challenging. We present a rare yet serious case of a 17-year-old white female who presented to the ED with a 2-day history of diffuse abdominal pain, nausea, and intractable vomiting. Abdominal examination and imaging, including computed tomography (CT), were negative during an episode 6 weeks previously. This was her fifth similar episode in a 2-month period, and she had been seen at three different hospitals and admitted on each occasion. Three days prior to presentation to our ED, she was seen at a gastroenterology clinic and diagnosed with irritable bowel syndrome and an ovarian cyst. Symptomatic therapy during the current presentation, with intravenous fluids, antiemetics, and parenteral narcotics, failed to alleviate her abdominal pain and vomiting. Emergent CT evaluation revealed a high-grade colonic obstruction with focal circumferential narrowing in the transverse colon and a lower gastrointestinal follow-through radiograph with Gastrografin enema showed a classic “apple-core” lesion. Colonic adenocarcinoma with positive regional lymph nodes was found during emergent exploratory laparotomy. Pediatric patients with recurrent, episodic abdominal pain should undergo systematic evaluation and symptomatic treatment. A previous negative workup should not dissuade emergency physicians from proceeding with a systematic and thorough evaluation of the pediatric patient presenting with abdominal pain and vomiting.