Paraduodenal pancreatitis as an uncommon cause of gastric outlet obstruction: A case report and review of the literature

Clinical characteristics and management of gastric outlet obstruction in acute pancreatitis

OBJECTIVE

The aim of this study was to describe the clinical characteristics and management of gastric outlet obstruction following acute pancreatitis(AP).

BACKGROUND

Gastric outlet obstruction (GOO) is not uncommon in acute pancreatitis (AP) and can occur throughout the course. However, the clinical features and related treatment of GOO is rarely reported.

METHODS

A retrospective review of AP patients with a diagnosis of GOO from March 2017 to June 2020 was performed. The diagnosis and management of GOO, as well as the demographic characteristics and clinical outcomes of the study patients, were collected and analyzed.

RESULTS

Over the three years, there were 60 AP patients developed GOO, constituting an incidence of 5.7%. Thirty-three patients (55.0%, 33/60) developed GOO in the first 4 weeks and 27 patients (45.0%, 27/60) after 4 weeks from onset. Pancreatic necrosis compression (60.6%; 20/33), gastric outlet gastrointestinal edema (27.3%, 9/33) are the main causes of early-onset GOO (≤4 weeks), while wall-off necrosis (92.6%, 25/27) is the leading cause in the late phase (>4 weeks). The management of GOO incorporates both supportive and specific treatment like gastric decompression, gastric juice reinfusion, percutaneous catheter drainage, etc. The mortality of AP patients with GOO (≤4 weeks) was 21.2% and none patients who developed GOO (>4 weeks) died.

CONCLUSIONS

GOO, as a gastrointestinal complication developed in AP patients, has two peak incidences in the duration of AP and needs to be paid more attention to.

Duodenal Stenosis Due to Carcinoma of the Lower Bile Duct: A Case Report

An 83-year-old man was referred to our hospital for a detailed evaluation for vomiting. Esophagogastroduodenoscopy and abdominal computed tomography showed duodenal stenosis with wall thickness. Biopsy including endoscopic ultrasound-guided fine-needle aspiration of the thickened wall showed inflammation without malignancy. During the clinical course, wall thickening of the distal bile duct appeared. Biopsy under endoscopic retrograde cholangiography showed papillary adenocarcinoma. Surgery revealed that the tumor had widely invaded the duodenal wall from the outside; therefore, only gastrojejunostomy was performed. It was hypothesized that the cholangiocarcinoma had progressed to the serosal side, disseminated in the peritoneum, infiltrated the duodenal serosa, and caused duodenal stenosis.

A case report of esophageal heterotopic pancreas presenting as recurrent mediastinal abscess, treated by minimally invasive esophagectomy

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Heterotopic pancreas is a rare congenital anomaly.

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Patients may present with complications such as inflammation and abscess.

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The management depends on size, ability to exclude other etiologies and symptoms.

Introduction

Heterotopic pancreas is a rare congenital anomaly. We report a case of esophageal heterotopic pancreas complicated by recurrent mediastinal abscess and treated by minimally invasive resection.

Presentation of case

A 31-year-old woman was admitted with a history of recurrent chest pain, dysphagia, and heartburn. CT scan revealed focal confined collection in the lower mediastinum surrounding esophagus. Endoscopic ultrasound revealed a subepithelial lesion. The patient was treated by minimally invasive esophagectomy and made an uneventful postoperative recovery.

Discussion

The management of subepithelial lesions would depend on their size, ability to exclude other etiologies and their associated symptoms. The patient, in this case, was obviously symptomatic and accurate differentiation from malignant etiologies could not be accurately made.

Conclusion

Although pancreatic heterotopia is rare, it should be remembered in the differential diagnosis of various gastrointestinal lesions.

Etiological spectrum and response to endoscopic balloon dilation in patients with benign gastric outlet obstruction

BACKGROUND AND AIMS

Peptic ulcer disease (PUD)-related gastric outlet obstruction (GOO) is known to respond favorably to endoscopic balloon dilation (EBD). However, data on efficacy of EBD for other etiologies of benign GOO are sparse. We aimed to compare the response of EBD among different etiologies of GOO.

METHODS

Records of all patients with benign GOO who underwent EBD at our tertiary-care center between January 1998 and December 2017 were analyzed. Dilation was done by using through-the-scope balloons. Procedural and clinical success of EBD was compared among different etiologies.

RESULTS

A total of 306 patients were evaluated, of whom 264 (mean [± standard deviation] [SD] age 37.89 ± 17.49 years; men 183, women 81) underwent dilation. Etiologically, caustic ingestion was the commonest cause of GOO (53.8%) followed by PUD (26.1%) and medication-induced (8.3%). Overall procedural and clinical success was achieved in 200 (75.7%) and 243 (92.04%) patients, respectively, requiring a mean (± SD) of 2.55 (2.8) and 5.37 (3.9) sessions, respectively. Caustic-induced GOO responded less favorably, requiring a higher number of dilation sessions and having more refractory strictures than other etiologies. Medication-induced GOO performed worse than PUD-related GOO. Of the 264 patients, 9 (3.4%) had perforations during EBD, 3 had contained leaks and were managed conservatively, and 6 underwent successful surgery.

CONCLUSION

EBD is successful in a majority of patients with benign GOO, with caustic-induced GOO and medication-induced GOO being more difficult than PUD-related GOO.