Bilateral symmetric gluteal muscle metastases from pancreatic carcinoma presenting as a myositis

Abstract

Skeletal muscle metastases from pancreatic carcinoma are exceedingly rare with only a few cases reported in the published work. The case of a 59-year-old man with bilateral, symmetric gluteal muscle metastases from pancreatic carcinoma is presented. This case was clinically challenging as until skeletal muscle biopsy was carried out, the working diagnosis was that of paraneoplastic polymyositis. A brief review of the published work is also presented.

68Ga-FAPI PET/CT Imaging of Multiple Muscle Metastases of Pancreatic Cancer

“…9 Pancreatic cancer combined with tumor-induced pancreatitis can cause intense FAPI uptake. 10 Multiple muscle metastases of pancreatic cancer are relatively rare 11 and more rarely present as the initial clinical manifestation. This case suggests that symmetrical multiple muscle metastases may be the initial clinical manifestation of pancreatic cancer.…”