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An Ectopic Pancreatic Mass Inducing Gastric Outlet Obstruction
Rohan Ahuja1, Samir Mehta2, Nakia Armendariz1
1Internal Medicine, University of Texas Health Science Center at Houston, Houston, USA.
A rare case of ectopic pancreatic tissue causing gastric outlet obstruction (GOO) was successfully treated with fine-needle aspiration. This highlights the need to consider unusual causes of GOO in diagnosis.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Diagnostic Imaging
Background:
- Gastric outlet obstruction (GOO) presents with symptoms like early satiety, pain, vomiting, and weight loss.
- Ectopic pancreatic tissue, though rare, can cause significant gastrointestinal issues, including GOO.
Observation:
- A 40-year-old male presented with a six-month history of GOO symptoms.
- CT and EGD revealed a cystic lesion in the pylorus causing obstruction.
- EUS-guided fine-needle aspiration of the cyst led to symptom resolution.
Findings:
- The cystic lesion was identified as ectopic mucinous pancreatic tissue.
- Elevated CEA and amylase levels in the aspirate confirmed the diagnosis.
- The cyst's growth mechanism may involve mucinous secretions or chronic pancreatitis.
Implications:
- This case underscores the importance of a broad differential diagnosis for GOO.
- Ectopic pancreas should be considered in the evaluation of obstructive gastric symptoms.
- Minimally invasive techniques like EUS-guided aspiration can be effective for managing such rare conditions.
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