Vincristine-induced ptosis in a leukemia patient treated with pyridoxine and pyridostigmine.

Introduction: Blepharoptosis, commonly referred to as ptosis or eyelid sagging, is a condition where the upper eyelid droops over the eye. It can be congenital or acquired and is caused by the weakening of the eyelid muscles.

Case Report: We present a case of a 3-year-old boy with T-cell acute lymphoblastic leukemia who developed bilateral ptosis while on treatment with Berlin-Frankfurt Munster-98 protocol.

Management & Outcome: The patient was diagnosed with bilateral ptosis due to vincristine, the primary agent in the induction phase of the protocol. The addition of the neuroregenerative agents and supportive measures led to marked improvement, followed by complete resolution within 3 weeks.

Discussion: Vincristine is an anticancer agent with known neurotoxicity, which has a significant role in treating hematological malignancies and sarcoma. In many studies, the addition of neuroregenerative agents such as pyridoxine and pyridostigmine has been noted to hasten recovery without any documented side effects. Similar findings were also drawn from our research due to India's higher incidence of vincristine-induced neurotoxicity. It is essential to promptly diagnose and manage symptoms at the earliest to prevent the risk of permanent nerve damage and inferior quality of life for the patient.