Fungal Mycotic Aneurysm in a Case of Acute Lymphoblastic Leukemia.

We report a case of a 15-year old boy who was managed as a case of B cell lymphoblastic leukaemia with the modified BFM 90 protocol. During the induction phase, he developed febrile neutropenia with sino-pulmonary fungal infection confirmed on histopathology. He developed left sided hemiparesis during in-hospital management of febrile neutropenia. Neuroimaging revealed 9.6 × 8.4 mm round well defined aneurysm arising from right cortical artery in distal middle cerebral artery territory. He underwent fronto-temporo-parietal craniectomy with evacuation of the hematoma and excision of the aneurysm. Histopathological examination of excised aneurysmal specimen grew same species of fungus as was cultured from nasal scraping. He recovered fully in next 6 months with minimal residual focal neurological deficits. Presently he is in maintenance phase chemotherapy. We presented this case to illustrate a rare complication of ALL therapy with mycotic aneurysm secondary to invasive fungal infection treated successfully.