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X-linked central congenital hypothyroidism with late-onset testicular enlargement(CHTE)

MedGen UID:
763877
Concept ID:
C3550963
Disease or Syndrome
Synonyms: Hypothyroidism, central, and testicular enlargement; HYPOTHYROIDISM, CENTRAL, WITH TESTICULAR ENLARGEMENT
Modes of inheritance:
X-linked recessive inheritance
MedGen UID:
375779
Concept ID:
C1845977
Finding
Source: Orphanet
A mode of inheritance that is observed for recessive traits related to a gene encoded on the X chromosome. In the context of medical genetics, X-linked recessive disorders manifest in males (who have one copy of the X chromosome and are thus hemizygotes), but generally not in female heterozygotes who have one mutant and one normal allele.
 
Gene (location): IGSF1 (Xq26.1)
 
Monarch Initiative: MONDO:0010475
OMIM®: 300888
Orphanet: ORPHA329235

Definition

Central hypothyroidism and testicular enlargement (CHTE) is characterized by central hypothyroidism, delayed pubertal testosterone rise, adult macroorchidism, variable prolactin deficiency, and occasional transient partial GH deficiency. Some carrier females also exhibit central hypothyroidism and mild prolactin deficiency. Inter- and intrafamilial variability has been observed (summary by Joustra et al., 2016). [from OMIM]

Clinical features

From HPO
Overweight
MedGen UID:
105424
Concept ID:
C0497406
Finding
Increased body weight with a body mass index of 25-29.9 kg per square meter.
Isolated prolactin deficiency
MedGen UID:
75758
Concept ID:
C0271586
Finding
A reduced level of prolactin in the blood circulation. Prolactin is a protein hormone that is secreted by lactotrophs in the anterior pituitary and that stimulates mammary gland development and milk production.
Hypothyroidism
MedGen UID:
6991
Concept ID:
C0020676
Disease or Syndrome
Deficiency of thyroid hormone.
Inappropriately normal thyroid-stimulating hormone level
MedGen UID:
1691608
Concept ID:
C5232538
Finding
A normal or elevated serum thyroid-stimulating hormone (TSH) level in the face of an elevation in circulating FT4 and/or FT3.
Reduced TSH response to thyrotrophin-releasing hormone stimulation test
MedGen UID:
1759429
Concept ID:
C5421596
Finding
A lower than normal TSH response to thyrotrophin-releasing hormone stimulation test.

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVX-linked central congenital hypothyroidism with late-onset testicular enlargement
Follow this link to review classifications for X-linked central congenital hypothyroidism with late-onset testicular enlargement in Orphanet.