Terson Syndrome - A Rare Presentation of Acute Lymphoblastic Leukaemia in Children

Acute lymphoblastic leukaemia arising from lymphoid precursor cells of the bone marrow, the lymphoreticular system, and the soft tissue can present with medullary and extramedullary involvement. Extramedullary involvement can affect any organ. Presentation with loss of vision secondary to bilateral vitreous haemorrhage along with intracerebral haemorrhage known as Terson syndrome is rare. There are case reports of such presentations in adults but, only a few in children. Here we are presenting a case of a 3year old male child who had bilateral visual loss secondary to vitreous haemorrhage along with intracerebral bleed, who was later diagnosed to have ALL and we want to give a brief overview of the literature about this unusual entity. Rapid investigation and timely initiation of treatment are needed to salvage the eye and the vision. Conclusion: Every child with acute lymphoblastic leukaemia with involvement of the brain should have at least one ophthalmologic examination.