Unexpected benign histopathology after pancreatoduodenectomy for presumed malignancy: accepting the inevitable

Langenbeck's Archives of Surgery
Rachel M GomesShailesh V Shrikhande

Abstract

Differentiating malignant and benign disease in the pancreatic head and periampullary region is difficult. The aim of this retrospective study was to analyze patients with unexpected "benign" disease after pancreatoduodenectomy (PD) to evaluate the incidence, possible discriminating factors, and outcome. The role of preoperative pathology interpretation in diagnosing malignancy was also assessed. Patients with unexpected benign disease were identified from a prospectively maintained database of 446 PDs for presumed malignancy from April 2006 to December 2013. Clinical, radiological, and pathological features were reviewed. Positive predictive values (PPVs) of preoperative pathology interpretation were analyzed. Short-term outcomes were compared. Incidence of unexpected benign disease was 6.5 % (29/446). Radiological diagnostic signs (except the double duct sign) suggestive of malignancy were seen in more than half of the benign cases. Preoperative pathology 'positive' or 'suspicious for malignancy' had a PPV of 97.6 % and 'indeterminate disease' and had a PPV of 90 % for malignancy. 'Benign' or 'negative' pathology had a PPV of 19 % for benign disease in strongly suspected malignancy. There was no significant difference in outc...Continue Reading

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Citations

May 18, 2019·Endocrine Reviews·Matthew J WattMagdalene K Montgomery
Jan 19, 2021·Biomarkers : Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals·Aleksander SkulimowskiPiotr Hogendorf
May 5, 2021·Surgical Endoscopy·Erik HaraldssonUrban Arnelo
Oct 6, 2021·Cancer Prevention Research·Katharine E Caldwell, Chet W Hammill

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