The genetic condition in this particular case is rare: only four other examples are known.

该案例中的基因状况很罕见，除此之外已知的仅有四例。

youdao

Sickle cell disease, also called sickle cell anemia, is a genetic condition that deforms red blood cells.

镰状细胞（贫血）病又称镰状细胞血症，是一种可以使红血球变形的遗传症状。

youdao

The patients all had Lynch syndrome, a genetic condition that predisposes people to develop colorectal cancer and other types of cancer.

这些病患大都患有林奇综合症，这种基因状况下会诱发结肠(直肠)癌，甚至其他癌症的可能性增大。

youdao

Sickle cell disease, also called sickle cell anemia, is a genetic condition that deforms red blood cells.

VOA: special.2009.12.16

Feliciano was diagnosed last week with a rare genetic condition called left ventricular noncompaction.

WSJ: Mets' Pedro Feliciano pitches with heart monitor

He was adopted by the family of Owen Howkins, from Basingstoke, Hampshire, who has a rare genetic condition.

BBC: Owen Howkins and Haatchi

He was adopted by the family of seven-year-old Owen Howkins, of Basingstoke, who has a rare genetic condition.

BBC: Crufts nod for disabled boy's dog 'hero'