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Pancreatic Atrophy: A Narrative Review and Surgical Interpretation
Rika Fujino1, Ken-Ichi Okada1, Yohei Masugi2
1Department of Gastroenterological Surgery Tokai University School of Medicine Isehara Japan.
Annals of Gastroenterological Surgery
|July 24, 2026
Summary
Pancreatic parenchymal atrophy on CT scans can predict early pancreatic cancer and its spread. This finding aids in surgical planning for better patient outcomes.
Area of Science:
- Radiology
- Oncology
- Surgical Pathology
Background:
- Pancreatic ductal adenocarcinoma (PDAC) is a fatal malignancy with poor outcomes.
- Early detection of PDAC is crucial for improving treatment and survival rates.
- Indirect imaging findings, such as pancreatic parenchymal atrophy, are vital for early diagnosis.
Purpose of the Study:
- To highlight pancreatic parenchymal atrophy as an early indicator of PDAC.
- To evaluate the diagnostic utility of computed tomography (CT) in identifying pancreatic parenchymal atrophy.
- To assess the implications of pancreatic parenchymal atrophy for surgical management of PDAC.
Main Methods:
- Review of CT scans with three-directional imaging for diagnosing pancreatic parenchymal atrophy.
- Analysis of the relationship between pancreatic parenchymal atrophy and tumor characteristics, including intraductal extension.
- Evaluation of surgical resection strategies for PDAC associated with pancreatic parenchymal atrophy.
Main Results:
- Pancreatic parenchymal atrophy, defined by CT imaging, can predict early-stage PDAC and its intraductal extension.
- CT with three-directional imaging is the preferred initial modality for diagnosing pancreatic parenchymal atrophy.
- PDAC with pancreatic parenchymal atrophy shows significantly longer intraductal lateral tumor extension.
- Resection of pancreatic parenchymal atrophy is feasible with low positive margin rates, though optimal margins require further clarification.
- Carcinoma in situ may occur focally within atrophic regions without ductal changes, suggesting tailored surgical approaches.
Conclusions:
- Pancreatic parenchymal atrophy is a significant indirect sign of early PDAC, aiding in diagnosis and surgical planning.
- CT imaging is essential for detecting pancreatic parenchymal atrophy and assessing tumor extent.
- Tailored surgical strategies, including intraoperative frozen-section analysis, are important for managing PDAC associated with focal atrophy.
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