European journal of ophthalmology · 2021
Massive retinal infiltrates as the presenting sign of chronic myeloid leukemia: Clinical and imaging features of leukemic retinopathy.
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Szeto Simon Kh, Mohamed Shaheeda, Tsang Chi Wai, Chan Carmen Km
Аннотация
PURPOSE: To describe the clinical and optical coherence tomography (OCT) features of two cases with bilateral diffuse retinal infiltrates as the only presenting feature of chronic myeloid leukemia (CML) on initial diagnosis and upon relapse.
METHODS: We reported two patients with CML, one at initial diagnosis and one in remission who presented with bilateral subacute visual impairment. Fundal examination revealed bilateral symmetrical leukostatic appearance with increased vascular tortuosity, diffuse retinal infiltrates with size up to 6 disk diameters, retinal hemorrhages, and Roth's spots. OCT showed multiple intra-retinal hyper-reflective foci corresponding to intra-retinal hemorrhages, and outer retinal hyper-reflective foci in area corresponding to retinal infiltrate. The different retinal layers were relatively preserved and distinguishable.
RESULTS: White cell count (WCC) were elevated in both patients ranging from 544 to 810 × 109/L. Bone marrow biopsy confirmed the diagnosis of CML in the patient without prior diagnosis and relapse of CML in another patient. Cytogenetic test detected Abelson murine leukemia (ABL) - breakpoint cluster region (BCR) fusion transcript in both cases. Both patients were started on oral imatinib, subsequently WCC returned to within normal values in both cases. Vision and OCT abnormalities improved and reduction in retinal hemorrhages and infiltrates were observed in follow up.
CONCLUSION: This report highlights the important role of ophthalmologists and detailed fundus examination in making a prompt diagnosis of leukemia in patients with visual complaints. Appropriate systemic investigation and hematologist referrals for prompt treatment of CML may improve survival rate and preserve vision.
METHODS: We reported two patients with CML, one at initial diagnosis and one in remission who presented with bilateral subacute visual impairment. Fundal examination revealed bilateral symmetrical leukostatic appearance with increased vascular tortuosity, diffuse retinal infiltrates with size up to 6 disk diameters, retinal hemorrhages, and Roth's spots. OCT showed multiple intra-retinal hyper-reflective foci corresponding to intra-retinal hemorrhages, and outer retinal hyper-reflective foci in area corresponding to retinal infiltrate. The different retinal layers were relatively preserved and distinguishable.
RESULTS: White cell count (WCC) were elevated in both patients ranging from 544 to 810 × 109/L. Bone marrow biopsy confirmed the diagnosis of CML in the patient without prior diagnosis and relapse of CML in another patient. Cytogenetic test detected Abelson murine leukemia (ABL) - breakpoint cluster region (BCR) fusion transcript in both cases. Both patients were started on oral imatinib, subsequently WCC returned to within normal values in both cases. Vision and OCT abnormalities improved and reduction in retinal hemorrhages and infiltrates were observed in follow up.
CONCLUSION: This report highlights the important role of ophthalmologists and detailed fundus examination in making a prompt diagnosis of leukemia in patients with visual complaints. Appropriate systemic investigation and hematologist referrals for prompt treatment of CML may improve survival rate and preserve vision.