GM2 gangliosidosis variant O

例句：

1. 1. The patient's condition was diagnosed as GMP2 gangliosidosis variant O.
   患者的病情被诊断为GMP2型脑苷脂贮积症变种O。
2. 2. This mutation is a rare but serious condition that requires immediate treatment.
   这种突变是一种罕见的但严重的状况，需要立即治疗。
3. 3. The family consulted with a specialist to determine the best course of action for their son's condition.
   这个家庭咨询了一位专家，以确定他们儿子的病情的最佳治疗方案。