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Items: 15

1.

Ateleiotic dwarfism

Isolated growth hormone deficiency type IA is an autosomal recessive disorder characterized by severe growth failure (SDS less than -4.5) by 6 months of age, undetectable growth hormone (GH) concentrations, and a tendency to develop antibodies despite an initial good response to rhGH treatment (summary by Alatzoglou et al., 2014). Genetic Heterogeneity of Isolated Growth Hormone Deficiency See IGHD1B (617281) and IGHD2 (173100), both caused by mutation in the GH1 gene; IGHD3 (307200), caused by mutation in the BTK gene (300300); and IGHD4 (618157), caused by mutation in the GHRHR gene (139191). Isolated growth hormone deficiency-5 (IGHD5) has been reclassified as combined pituitary hormone deficiency-7 (CPHD7; 618160). [from OMIM]

MedGen UID:
90986
Concept ID:
C0342573
Congenital Abnormality
2.

Laron-type isolated somatotropin defect

Laron syndrome is an autosomal recessive disorder characterized by marked short stature that results from failure to generate insulin-like growth factor I (IGF1; 147440) in response to growth hormone (GH; 139250). GH levels are normal or increased. The disorder is caused by dysfunction of the growth hormone receptor. A Laron syndrome-like phenotype associated with immunodeficiency (245590) is caused by a postreceptor defect, i.e., mutation in the STAT5B gene (604260). Patients with mutations in the GHR gene that cause only partial insensitivity to growth hormone have a form of short stature (604271). [from OMIM]

MedGen UID:
78776
Concept ID:
C0271568
Disease or Syndrome
3.

Woodhouse-Sakati syndrome

Virtually all individuals with Woodhouse-Sakati syndrome (WSS) have the endocrine findings of hypogonadism (evident at puberty) and progressive childhood-onset hair thinning that often progresses to alopecia totalis in adulthood. More than half of individuals have the neurologic findings of progressive extrapyramidal movements (dystonic spasms with dystonic posturing with dysarthria and dysphagia), moderate bilateral postlingual sensorineural hearing loss, and mild intellectual disability. To date, more than 40 families (including 33 with a molecularly confirmed diagnosis) with a total of 88 affected individuals have been reported in the literature. [from GeneReviews]

MedGen UID:
83337
Concept ID:
C0342286
Disease or Syndrome
4.

PGM1-congenital disorder of glycosylation

Congenital disorder of glycosylation type It (CDG1T) is an autosomal recessive disorder characterized by a wide range of clinical manifestations and severity. The most common features include cleft lip and bifid uvula, apparent at birth, followed by hepatopathy, intermittent hypoglycemia, short stature, and exercise intolerance, often accompanied by increased serum creatine kinase. Less common features include rhabdomyolysis, dilated cardiomyopathy, and hypogonadotropic hypogonadism (summary by Tegtmeyer et al., 2014). For a discussion of the classification of CDGs, see CDG1A (212065). [from OMIM]

MedGen UID:
414536
Concept ID:
C2752015
Disease or Syndrome
5.

Short stature due to partial GHR deficiency

Short stature due to partial GHR deficiency is a rare, genetic, endocrine disease characterized by idiopathic short stature due to diminished GHR function (decreased ligand binding or reduced availability of receptor), thus resulting in partial insensitivity to growth hormone. [from ORDO]

MedGen UID:
346958
Concept ID:
C1858656
Disease or Syndrome
6.

Autosomal dominant isolated somatotropin deficiency

Type II IGHD is an autosomal dominant disorder characterized by low but detectable levels of growth hormone (GH), variable height deficit and age at presentation, and good response to rhGH. Patients may show anterior pituitary hypoplasia on MRI (summary by Phillips and Cogan, 1994; Alatzoglou and Dattani, 2012). [from OMIM]

MedGen UID:
124405
Concept ID:
C0271567
Disease or Syndrome
7.

Short stature due to primary acid-labile subunit deficiency

Acid-labile subunit deficiency is characterized by severely reduced serum insulin-like growth factor I (IGF1; 147440) and IGF-binding protein-3 (IGFBP3; 146732) concentrations that are incongruent with an associated mild growth retardation (height, -2 to -3 SD before and during puberty). Pubertal delay in boys and insulin insensitivity are common findings (summary by Domene et al., 2011). [from OMIM]

MedGen UID:
859716
Concept ID:
C3900122
Laboratory or Test Result
8.

Growth delay due to insulin-like growth factor type 1 deficiency

Insulin-like growth factor I deficiency (IGF1D) is characterized by severe pre- and postnatal growth failure, sensorineural deafness, and impaired motor and intellectual development (summary by Bonapace et al., 2003). [from OMIM]

MedGen UID:
373337
Concept ID:
C1837475
Disease or Syndrome
9.

Cholestasis-pigmentary retinopathy-cleft palate syndrome

MED12-related disorders include the phenotypes of FG syndrome type 1 (FGS1), Lujan syndrome (LS), X-linked Ohdo syndrome (XLOS), Hardikar syndrome (HS), and nonspecific intellectual disability (NSID). FGS1 and LS share the clinical findings of cognitive impairment, hypotonia, and abnormalities of the corpus callosum. FGS1 is further characterized by absolute or relative macrocephaly, tall forehead, downslanted palpebral fissures, small and simple ears, constipation and/or anal anomalies, broad thumbs and halluces, and characteristic behavior. LS is further characterized by large head, tall thin body habitus, long thin face, prominent nasal bridge, high narrow palate, and short philtrum. Carrier females in families with FGS1 and LS are typically unaffected. XLOS is characterized by intellectual disability, blepharophimosis, and facial coarsening. HS has been described in females with cleft lip and/or cleft palate, biliary and liver anomalies, intestinal malrotation, pigmentary retinopathy, and coarctation of the aorta. Developmental and cognitive concerns have not been reported in females with HS. Pathogenic variants in MED12 have been reported in an increasing number of males and females with NSID, with affected individuals often having clinical features identified in other MED12-related disorders. [from GeneReviews]

MedGen UID:
208652
Concept ID:
C0795969
Disease or Syndrome
10.

Isolated growth hormone deficiency, type 4

Isolated growth hormone deficiency type IV (IGHD4) is an autosomal recessive disorder characterized by early and severe growth failure (height SDS up to -7.4), a blunted growth hormone (GH) response to different provocation tests and low insulin-like growth factor-I (IGF1; 147440) and IGF-binding protein-3 (IGFBP3; 146732) concentrations, and a good response to growth hormone treatment (summary by Alatzoglou et al., 2014). For general phenotypic information and a discussion of genetic heterogeneity of IGHD, see 262400. [from OMIM]

MedGen UID:
1648300
Concept ID:
C4722273
Disease or Syndrome
11.

Growth hormone insensitivity syndrome with immune dysregulation 2, autosomal dominant

Autosomal dominant growth hormone insensitivity syndrome with immune dysregulation-2 (GHISID2) is a congenital disorder characterized by short stature due to insensitivity to growth hormone (GH1; 139250). Affected individuals usually have delayed bone age, delayed puberty, and decreased serum IGF1 (147440). Some patients may have features of mild immune dysregulation, such as eczema, increased serum IgE, asthma, or celiac disease (summary by Klammt et al., 2018). [from OMIM]

MedGen UID:
1723138
Concept ID:
C5436546
Disease or Syndrome
12.

Joubert syndrome 38

Joubert syndrome-38 (JBTS38) is characterized by hypotonia, global developmental delay, oculomotor apraxia, and breathing abnormalities, with a 'molar tooth sign' on brain MRI. Patients also exhibit pituitary abnormalities with growth hormone deficiency (Stephen et al., 2017). For a general phenotypic description and discussion of genetic heterogeneity of Joubert syndrome, see JBTS1 (213300). [from OMIM]

MedGen UID:
1794168
Concept ID:
C5561958
Disease or Syndrome
13.

Pituitary hormone deficiency, combined or isolated, 8

Combined pituitary hormone deficiency-8 (CPHD8) is an autosomal dominant disorder characterized by deficiency of one or more of the pituitary hormones. Affected individuals have short stature due to growth hormone (GH; 139250) deficiency with variable deficiencies of other pituitary hormones, including TSH (see 188540), ACTH, and LH/FSH (see 118850). Posterior pituitary deficiency leading to central diabetes insipidus is rare (Bashamboo et al., 2017). Many patients are diagnosed with 'pituitary stalk interruption syndrome' (PSIS), which is characterized by a thin or absent pituitary stalk, absent or ectopic posterior pituitary, and hypoplasia of the anterior pituitary demonstrated on brain imaging, although this classic triad may be incomplete. Brauner et al. (2020) noted the complex phenotypic and genetic heterogeneity of PSIS, and concluded that it is a feature of genetic disorders or syndromes rather than a specific clinical entity. For a discussion of genetic heterogeneity of combined pituitary hormone deficiency, see CPHD1 (613038). [from OMIM]

MedGen UID:
1841011
Concept ID:
C5830375
Disease or Syndrome
14.

Spondyloepimetaphyseal dysplasia, Krakow type

Krakow-type spondyloepimetaphyseal dysplasia is characterized by severe skeletal dysplasia, severe immunodeficiency, and developmental delay (Csukasi et al., 2018). [from OMIM]

MedGen UID:
1648323
Concept ID:
C4748455
Disease or Syndrome
15.

Decreased serum insulin-like growth factor 1

A reduced level of insulin-like growth factor 1 (IGF1) in the blood circulation. [from HPO]

MedGen UID:
892792
Concept ID:
C4072897
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