Paraneoplastic ocular sarcoidosis in the setting of recurrent rectal carcinoid tumor diagnosed by F
American journal of ophthalmology case reports
Purpose: Nuclear medicine imaging can provide a noninvasive means of distinguishing inflammatory mass lesions from oncologic intraocular tumors.
Observation: We report a case of paraneoplastic ocular sarcoidosis with choroidal mass lesions that was initially concerning for choroidal metastasis of a primary carcinoid tumor. PET CT was utilized with two different tracers to characterize the choroidal mass as being FDG-avid, consistent with a sarcoid-like lesion, and lacking the Gallium (Ga-68) DOTATAE uptake of carcinoid tumor metastases.
Conclusions and Importance: Functional imaging is valuable to distinguish clinically similar inflammatory verses oncologic intraocular pathology.
Marlow ED, Faia LJ, Wu D, Farley N, Randhawa S. Paraneoplastic ocular sarcoidosis in the setting of recurrent rectal carcinoid tumor diagnosed by F18-fluorodeoxyglucose PET CT. Am J Ophthalmol Case Rep. 2020 Aug 20;20:100887. doi: 10.1016/j.ajoc.2020.100887. PMID: 32875163; PMCID: PMC7452145.