Abstract
BackgroundPainless chronic pancreatitis (CP) is a rare form of the disease. AimTo evaluate the prevalence and the characteristics of this overlooked form of pancreatitis. MethodsPatients with a diagnosis of CP and absence of pain were selected, excluding patients suffering from autoimmune pancreatitis. Clinical data, imaging features, and exocrine and endocrine function were therefore analyzed. ResultsAmong 781 patients observed between 2010 and 2016, 74 patients with painless CP (9.5%) were selected. Mean age at diagnosis was 60.8 (SD 10.8) years. 38(51%) individuals did not report any symptom, 36(49%) were affected by symptoms other than pain. Pancreatic calcifications were diagnosed in 70 patients (95%), main pancreatic duct dilation in 55(74%), and pancreatic atrophy in 39(53%).Thirty-six patients (55%) had severe exocrine pancreatic insufficiency(EPI). Diabetes was observed in 34 out of 72 patients (47%). During a mean follow-up of 2.9 (SD 2.8) years, only a mild pancreatitis was diagnosed in a 71-year old female. No patient underwent endoscopic treatment or surgery, developed pancreatic cancer or died. ConclusionsIn a tertiary center painless CP is observed in 10% of cases, and it is frequently associated with EPI. The probability of onset of pain is very low in a short-term follow-up.
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