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Sequential central retinal artery occlusions associated with cryoglobulinemia.
International Journal of Retina and Vitreous 2023 March 23
BACKGROUND: Cryoglobulinemia, the presence of serum cryoglobulins which are immunoglobulins or complement components that precipitate at temperatures below 37 °C, commonly present with cutaneous manifestations initially, but are more rarely associated with ocular manifestations. To our knowledge, we report the first case of a patient presenting with sequential central retinal artery occlusion (CRAO) associated with cryoglobulinemia.
CASE PRESENTATION: A 69-year-old female with a history of indolent B-cell lymphoma associated cryoglobulinemia, treated hepatitis B infection and CRAO in the left eye presented with acute vision loss and diffuse retinal whitening with a cherry red spot in her right eye, suggestive of sequential CRAO. Laboratory studies revealed a cryocrit of 55% (normal < 1%), elevated titres of cryoglobulin IgG at 1.98 g/L and cryoglobulin IgM at 3.78 g/L (normal < 0.3 g/L)9 , and elevated kappa free light chain at 283.5 mg/L (normal < 0.06 g/L). Such elevated tires of cryoglobulins in the context of the patient's CRAO raised suspicion of cryoglobulinemia associated CRAO. The patient was promptly referred to rheumatology and oncology and was admitted for treatment including intravenous methylprednisone, rituximab and bendamustine chemotherapy.
CONCLUSIONS: We report a patient with a complex medical history presenting with significant vision loss due to a sequential CRAO likely associated with cryoglobulinemia. Although a direct relationship between cryoglobulinemia and CRAO cannot be confirmed in this case, it highlights the importance of considering cryoglobulinemia in high-risk patients with prior history of hematological malignancy or chronic hepatitis infection.
CASE PRESENTATION: A 69-year-old female with a history of indolent B-cell lymphoma associated cryoglobulinemia, treated hepatitis B infection and CRAO in the left eye presented with acute vision loss and diffuse retinal whitening with a cherry red spot in her right eye, suggestive of sequential CRAO. Laboratory studies revealed a cryocrit of 55% (normal < 1%), elevated titres of cryoglobulin IgG at 1.98 g/L and cryoglobulin IgM at 3.78 g/L (normal < 0.3 g/L)9 , and elevated kappa free light chain at 283.5 mg/L (normal < 0.06 g/L). Such elevated tires of cryoglobulins in the context of the patient's CRAO raised suspicion of cryoglobulinemia associated CRAO. The patient was promptly referred to rheumatology and oncology and was admitted for treatment including intravenous methylprednisone, rituximab and bendamustine chemotherapy.
CONCLUSIONS: We report a patient with a complex medical history presenting with significant vision loss due to a sequential CRAO likely associated with cryoglobulinemia. Although a direct relationship between cryoglobulinemia and CRAO cannot be confirmed in this case, it highlights the importance of considering cryoglobulinemia in high-risk patients with prior history of hematological malignancy or chronic hepatitis infection.
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