Clinical, Radiological, and Endoscopic Ultrasound Findings in Groove Pancreatitis: A Multicenter Retrospective Study
Hussein Hassan Okasha1, Mohamed Gouda2, Mohammed Tag-Adeen3
1Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini School of Medicine, Cairo University, Cairo, Egypt.
Summary
Groove pancreatitis, a rare condition mimicking malignancy, requires careful diagnosis. Imaging and endoscopic evaluation are key, with conservative and endoscopic treatments showing over 90% success. Early consideration prevents unnecessary surgeries.
Area of Science:
- Gastroenterology
- Radiology
- Oncology
Background:
- Groove pancreatitis is a rare focal pancreatitis variant.
- It can be misdiagnosed as malignancy, leading to unnecessary surgeries.
- Early consideration is crucial for patients with pancreatic head mass or duodenal stenosis.
Purpose of the Study:
- To document clinical, radiologic, and endoscopic characteristics of groove pancreatitis.
- To evaluate treatment outcomes for groove pancreatitis patients.
- To differentiate groove pancreatitis from malignancy.
Main Methods:
- Retrospective multicenter observational study.
- Included patients with imaging criteria for groove pancreatitis.
- Excluded patients with confirmed malignancy via fine-needle aspiration/biopsy.
Main Results:
- 21 patients included; mean age 49, 71% male.
- Common findings: gastric outlet obstruction (76%), duodenal thickening (up to 76.2%), pancreatic head enlargement (up to 47.6%), duodenal cysts (up to 52.4%).
- Conservative and endoscopic treatments achieved >90% favorable outcomes.
Conclusions:
- Groove pancreatitis should be suspected with duodenal stenosis, cysts, or groove area thickening.
- Imaging (CT, EUS, MRI) is valuable for characterization.
- Endoscopic biopsy is essential to exclude malignancy.
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