Imaging Findings of Duodenal Duplication Cyst Complicated with Duodenal Intussusception and Biliary Dilatation

An ampullary adenoma presenting with jaundice caused by duodenal intussusception: a case report

BACKGROUND

Ampullary adenomas are premalignant lesions. However, biliary obstruction causing jaundice is rare. Duodenal intussusception secondary to an ampullary adenoma rarely occurs because of the fixed position of the duodenum in the retroperitoneum. Herein, we have described a rare case of ampullary adenoma with jaundice caused by duodenal intussusception.

CASE PRESENTATION

A 40-year-old woman presenting with vomiting and yellowish discoloration of the skin was admitted to another hospital. The patient had experienced recurrent epigastric pain and vomiting for the past 18 months. Blood test results showed elevated levels of bilirubin (3.9 mg/dL), and abdominal computed tomography (CT) showed a 60-mm hypovascular mass in the third part of the duodenum and a left lateral shift of the dilated common bile duct. The patient was referred to our hospital for further evaluation. She recovered from hyperbilirubinemia spontaneously (levels of bilirubin, 1.0 mg/dL), and the CT showed a tumor shift from the third part of the duodenum to the second part and improvement of the dilated common bile duct. Hypotonic duodenography revealed a tumor that moved easily from the second to the third portion of the patient's position. Upper gastrointestinal endoscopy revealed a large papillary tumor occupying the second part of the duodenum, which was diagnosed as an adenoma through biopsy. The possibility of malignancy could not be negated owing to the presence of jaundice and an elevated carbohydrate antigen 19-9 level (76.0 U/mL). Pancreaticoduodenectomy was performed. The resected specimen showed a 60 × 40 × 40-mm pedunculated ampullary mass with submucosal elongation. The pathological examination indicated that the ampullary tumor was a high-grade intestinal adenoma. The postoperative course was uneventful, and the patient was discharged 26 days postoperatively.

CONCLUSIONS

This report describes a rare case of a patient with an ampullary adenoma presenting with jaundice resulting from duodenal intussusception. Owing to the possibility of a postoperative cancer diagnosis which may have caused the biliary obstruction and the difficulty in making an accurate preoperative diagnosis, it is imperative to choose the appropriate surgical procedure such as a pancreaticoduodenectomy.

Acute duodenal obstruction secondary to intussusception caused by the duodenal diverticulum: a case report

Background

The duodenal intussusception is rarely reported and usually occurs secondary to organic diseases of the duodenum such as polyps, tumors and duplication cysts. Herein we report a case of duodenal intussusception caused by duodenal diverticulum.

Case presentation

A 21-year old male patient presented with abdominal pain and vomiting for one day. A contrast enhanced computed tomography of the abdomen revealed duodenal intussusception. On emergency laparotomy, the intussusception had reduced spontaneously while an invaginated diverticulum was seen at the junction of the descending and horizontal segments of the duodenum. The diverticulum was resected and the patient had uneventful recovery.

Conclusion

Duodenal intussusception is a rare complication of duodenal diverticulum. Being aware of this complication of diverticulum can help in timely diagnosis and treatment.

Unusual Presentation of Duodenal Ulcer Presenting with Duodenal Intussusception

We present a unique case of duodeno-duodenal intussusception from a duodenal bulb ulcer. A 38-year-old man presented with nausea, vomiting, and abdominal pain. Computed tomography showed duodenal intussusception. Esophagogastroduodenoscopy (EGD) showed a linear gastric ulcer and a duodenal bulb ulcer with an overlying blood clot. Helicobacter pylori status was positive. Intussusception resolved spontaneously without intervention. He completed treatment for H. pylori infection, and repeat EGD showed ulcer healing. Duodenal intussusception is rarely reported; intussusception from an edematous duodenal ulcer with an overlying blood clot mimicking a mass lesion acting as lead point has never been reported to our knowledge.