Table 2 Phenotypes of probands with mosaic, CNV, and heterozygous pathogenic variants.

From: Pathogenic mosaic variants in congenital hypogonadotropic hypogonadism

Family

Proband

Gender

Diagnosis

Olfaction

Puberty

Genital phenotypes

Associated phenotypes

Variants

Inheritance

113

S374

M

CHH

Normal

Absent

Micropenis and bilateral cryptorchidism

Atrial septal defect

FGFR1 p.Leu630Pro PROKR2 p.Asp34Asn

De novo (mosaic) Maternal

178

S439

M

KS

Anosmia

Absent

Micropenis and bilateral cryptorchidism

-

FGFR1 p.Gly348Arg

De novo (mosaic)

463

S1247

F

KS (CHARGE)

Anosmia

Absent

-

Coloboma, semicircular canal hypoplasia, pulmonary artery stenosis

CHD7 p.Arg2428*

De novo (mosaic)

761

S1879

M

CHH

Normal

Partial

-

Mild right ventricular dilation, aortic dilation

CHD7 p.Tyr1325His

Paternal

151

S412

F

KS

Anosmia

Absent

-

Hearing loss, abnormal dentition, low bone mass

FGFR1 p.Gly348Arg

IL17RD p.Tyr379Cys

De novo

Maternal

  1. CHARGE coloboma, heart defects, choanal atresia, retardation of growth and development, genital hypoplasia and ear anomalies, CHH congenital hypogonadotropic hypogonadism, F female, KS Kallmann syndrome, M male.