[Pyridoxin-resistant homocystinuria. Apropos of a case with early thromboembolic complications]. / Homocystinurie pyridoxino-résistante. A propos d'un cas avec accidents thromboemboliques précoces.

The authors report a case of homocystinuria diagnosed in a 2 year-old boy presenting with psychomotor retardation and with widespread cerebral vascular thromboses, unusually severe at that age. The disease was of the pyridoxin-resistant type, for which use of remethylation activators led to a good biological result.