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A case of conjunctival amyloidosis requiring differentiation from MALT lymphoma Emi Adachi 1,2 , Hideki Fukuoka 1 , Hokoru Yoshioka 1 , Mitsuharu Ueda 3 , Chie Sotozono 1 1Department of Ophthalmology, Kyoto Prefectural University of Medicine 2Japanese Red Cross Kyoto Daini Hospital 3Diagnostic Unit for Amyloidosis, Kumamoto University pp.1440-1444
Published Date 2022/10/15
DOI https://doi.org/10.11477/mf.1410214536
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Abstract Purpose:We report a case of localized conjunctival amyloidosis requiring differentiation from MALT lymphoma.

Case Presentation:An 82-year-old man presented with grittiness and lacrimation in his left eye. Visual acuity at the first visit was 0.4 both in the right and left eye. A yellow elevated lesion was found in the conjunctival fornix of the left lower eyelid. A pathological examination revealed deposition of amyloid that stains orange-red with congo red staining. No lesions other than the conjunctiva were found, which was judged to be localized conjunctival amyloidosis.

Conclusion:Most reports of amyloidosis in the ophthalmic field are localized. In this case, amyloid deposition on the conjunctival fornix was predominant;therefore, differentiation from MALT lymphoma was required. If amyloidosis is diagnosed, to medically rule out systemic amyloidosis is important.


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