所查杯状耳均无耳聋病史及其它部位畸形。结论：杯状耳的形成是由父母双方中一方杯状耳基因决定的，家系分析显示为常染色体显性遗传。
Conclusion:The family investigation suggested that the formation of cup ear was determined by the cup ear gene of an affected parent and it was an autosomal dominant inheritance.
一个家系中唯一的患病个体，可由上代遗传基因决定，也可由于新突变产生。参见散发。
Isolated case — an individual who is the only member of his or her kindred affected by a genetic disorder, either by chance or by new mutation. See also sporadic.
一个家系中唯一的患病个体，可由上代遗传基因决定，也可由于新突变产生。参见散发。
Isolated case — an individual who is the only member of his or her kindred affected by a genetic disorder, either by chance or by new mutation. See also sporadic.
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