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Am J Ophthalmol Case Rep. 2018 Nov 20;13:38-40. doi: 10.1016/j.ajoc.2018.11.015. eCollection 2019 Mar.

A complex choristoma presenting as a salmon patch lesion in the bulbar conjunctiva.

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Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA.
Department of Pathology, University of Illinois at Chicago, Chicago, IL, USA.



We describe a rare case of a complex choristoma appearing as a salmon-patch lesion in the nasal conjunctiva. While benign, complex choristomas are grossly indistinguishable from malignant lesions, and an excisional biopsy is warranted to confirm the diagnosis.


A 31-year-old man presented with an elevated glistening pink mass on the conjunctiva. An excisional biopsy with a "no-touch" technique was performed, followed by placement of an amniotic membrane graft without postoperative complications. No subsequent medical treatment was pursued after the biopsy and histopathologic evaluation. Histopathology confirmed a diagnosis of a complex choristoma with sections consisting of fibroadipose tissue with cartilage, smooth muscle, and nerves. Histopathology was negative for malignant cells without morphologic evidence of a lymphoma.

Conclusions and Importance:

Conjunctival tumors are difficult to distinguish clinically, and a differential diagnosis often includes the possibility of a malignancy. Histopathologic diagnosis may be required to distinguish between various entities. In our case, a salmon-patch conjunctival tumor was biopsied and confirmed to be a benign complex choristoma.


Choristoma; Complex choristoma; Conjunctiva; Conjunctival pathology; Conjunctival tumor

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