Patients who develop sarcoma after treatment for breast cancer have a poor prognosis whether it occurs as Stewart-Treves syndrome or other types of post-treatment sarcoma. Younger patients may be at higher risk than are older patients for the development of nonlymphangiosarcoma post-treatment sarcoma.

We report a case of pancreatic sarcoidosis in a patient with radiographic and clinical findings suggestive of pancreatic cancer. Clinically apparent involvement of the pancreas is uncommon in patients with known sarcoidosis and is distinctly unusual as the initial presentation of disease. Sarcoid involvement of the pancreas can mimic adenocarcinoma and should be considered in the differential diagnosis of a pancreatic mass in a patient with symptoms suggestive of sarcoidosis.