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Paraneoplastic Myopathy in Pancreatic Cancer: a Case Report and Literature Review

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Date 2021 Nov 22
PMID 34804404
Citations 2
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Abstract

Dermatomyositis (DM) and polymyositis (PM) are both immune-mediated inflammatory myopathies known to occur in paraneoplastic syndromes associated with a new diagnosis of malignancy, most commonly breast, ovarian, lung, pancreatic, stomach, colorectal, and Non-Hodgkin's lymphoma in DM and breast, lung, bladder cancer, and Non-Hodgkin's lymphoma in PM. While inflammatory markers such as creatine kinase (CK) may be elevated with either DM or PM, marked elevation is rare. Herein, we report a case of newly diagnosed pancreatic cancer presenting with inflammatory myopathy and marked CK elevation. We review the frequency of PM as a paraneoplastic syndrome, the association with marked CK elevation, and the association with pancreatic cancer.

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