Sarcoidosis Lung Nodules in Colorectal Cancer Follow-Up: Sarcoidosis or Not?



      Sarcoidosis is a multisystem chronic granulomatous disease found predominantly in the lungs and lymph nodes. Its pathologic hallmark is the presence of noncaseating granulomas. Sarcoidosis is a chronic inflammatory condition that may increase the risk of cancer, yet at the same time, cancer can be associated with a sarcoid-like reaction.


      It is difficult to distinguish between sarcoidosis and sarcoid-like reactions because their imaging characteristics are identical. We report on 3 cases of sarcoidosis or sarcoid-like reactions in patients with colorectal cancer and highlight the diagnosis process.


      Systemic symptoms observed in patients with sarcoidosis commonly can be masked or mimicked by symptoms related to the malignancy. Moreover, it is important to distinguish between the 2 entities to give patients adequate therapy.


      Our cases focused on the usefulness of histologic proof in patients with cancer with sarcoidosis.


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