Roth spots in chronic myelogenous leukemia.

E1352 CMAJ, December 13, 2011, 183(18) © 2011 Canadian Medical Association or its licensors A39-year-old woman presented with a history of headache and visual complaints including bright flashes of light, white “moth-like” areas and black spots throughout the field of vision in her right eye that had been ongoing for one to two months. In the days leading up to her presentation, her symptoms had progressed to involve both fields of vision. In addition to the changes in her vision, the patient described having night sweats during the same period. A dilated eye examination showed multiple 1mm hemorrhages with white centres scattered throughout the retinas of both eyes (Figure 1A), consistent with Roth spots. Our patient’s white blood cell count was 316 (normal range 3.5– 11.0 × 10/L), and aspiration of the patient’s bone marrow confirmed a diagnosis of chronic myelogenous leukemia. The patient was given imatinib, after which her visual symptoms, headaches and night sweats abated; after five weeks, her retinal lesions had decreased substantially in both number and severity (Figure 1B). Roth spots were once believed to be path o gnomonic of subacute bacterial endocarditis. The white-centred retinal hemorrhages are now seen as a nonspecific sign caused by the rupture of retinal capillaries, followed by the ag gregation of fibrin and platelets. The range of clinical conditions associated with Roth spots is varied and includes sub acute bacterial en do carditis, sepsis, toxoplasmosis, HIV, leukemia, diabetes, hypertension, vasculitis and traumatic brain injuries in infants. Finding Roth spots should lead clinicians to consider in vestigations appropriate to the clinical context.