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Items: 8

1.

Diabetes insipidus, nephrogenic, X-linked

Hereditary nephrogenic diabetes insipidus (NDI) is characterized by inability to concentrate the urine, which results in polyuria (excessive urine production) and polydipsia (excessive thirst). Affected untreated infants usually have poor feeding and failure to thrive, and rapid onset of severe dehydration with illness, hot environment, or the withholding of water. Short stature and secondary dilatation of the ureters and bladder from the high urine volume is common in untreated individuals. [from GeneReviews]

MedGen UID:
288785
Concept ID:
C1563705
Disease or Syndrome
2.

Diabetes insipidus, nephrogenic, autosomal

Hereditary nephrogenic diabetes insipidus (NDI) is characterized by inability to concentrate the urine, which results in polyuria (excessive urine production) and polydipsia (excessive thirst). Affected untreated infants usually have poor feeding and failure to thrive, and rapid onset of severe dehydration with illness, hot environment, or the withholding of water. Short stature and secondary dilatation of the ureters and bladder from the high urine volume is common in untreated individuals. [from GeneReviews]

MedGen UID:
289643
Concept ID:
C1563706
Disease or Syndrome
3.

Hartsfield-Bixler-Demyer syndrome

FGFR1-related Hartsfield syndrome comprises two core features: holoprosencephaly (HPE) spectrum disorder and ectrodactyly spectrum disorder. HPE spectrum disorder, resulting from failed or incomplete forebrain division early in gestation, includes alobar, semilobar, or lobar HPE. Other observed midline brain malformations include corpus callosum agenesis, absent septum pellucidum, absent olfactory bulbs and tracts, and vermian hypoplasia. Other findings associated with the HPE spectrum such as craniofacial dysmorphism, neurologic issues (developmental delay, spasticity, seizures, hypothalamic dysfunction), feeding problems, and endocrine issues (hypogonadotropic hypogonadism and central insipidus diabetes) are common. Ectrodactyly spectrum disorders are unilateral or bilateral malformations of the hands and/or feet characterized by a median cleft of hand or foot due to absence of the longitudinal central rays (also called split-hand/foot malformation). The number of digits on the right and left can vary. Polydactyly and syndactyly can also be seen. [from GeneReviews]

MedGen UID:
335111
Concept ID:
C1845146
Congenital Abnormality
4.

Hyperammonemic encephalopathy due to carbonic anhydrase VA deficiency

Most children with carbonic anhydrase VA (CA-VA) deficiency reported to date have presented between day 2 of life and early childhood (up to age 20 months) with hyperammonemic encephalopathy (i.e., lethargy, feeding intolerance, weight loss, tachypnea, seizures, and coma). Given that fewer than 20 affected individuals have been reported to date, the ranges of initial presentations and long-term prognoses are not completely understood. As of 2021 the oldest known affected individual is an adolescent. Almost all affected individuals reported to date have shown normal psychomotor development and no further episodes of metabolic crisis; however, a few have shown mild learning difficulties or delayed motor skills. [from GeneReviews]

MedGen UID:
816734
Concept ID:
C3810404
Disease or Syndrome
5.

Severe dermatitis-multiple allergies-metabolic wasting syndrome

A rare genetic epidermal disorder with characteristics of congenital erythroderma with severe psoriasiform dermatitis, ichthyosis, severe palmoplantar keratoderma, yellow keratosis on the hands and feet, elevated immunoglobulin E, multiple food allergies, and metabolic wasting. Other variable features may include hypotrichosis, nail dystrophy, recurrent infections, mild global developmental delay, eosinophilia, nystagmus, growth impairment and cardiac defects. [from SNOMEDCT_US]

MedGen UID:
816049
Concept ID:
C3809719
Disease or Syndrome
6.

Webb-Dattani syndrome

Webb-Dattani syndrome is an autosomal recessive disorder characterized by frontotemporal hypoplasia, globally delayed development, and pituitary and hypothalamic insufficiency due to hypoplastic development of these brain regions. Patients present soon after birth with multiple pituitary hormonal deficiencies and subsequently develop microcephaly, seizures, and spasticity. Other features include postretinal blindness and renal abnormalities (summary by Webb et al., 2013). [from OMIM]

MedGen UID:
863145
Concept ID:
C4014708
Disease or Syndrome
7.

Immunodeficiency 82 with systemic inflammation

Immunodeficiency-82 with systemic inflammation (IMD82) is a complex autosomal dominant immunologic disorder characterized by recurrent infections with various organisms, as well as noninfectious inflammation manifest as lymphocytic organ infiltration with gastritis, colitis, and lung, liver, CNS, or skin disease. One of the more common features is inflammation of the stomach and bowel. Most patients develop symptoms in infancy or early childhood; the severity is variable. There may be accompanying fever, elevated white blood cell count, decreased B cells, hypogammaglobulinemia, increased C-reactive protein (CRP; 123260), and a generalized hyperinflammatory state. Immunologic workup shows variable B- and T-cell abnormalities such as skewed subgroups. Patients have a propensity for the development of lymphoma, usually in adulthood. At the molecular level, the disorder results from a gain-of-function mutation that leads to constitutive and enhanced activation of the intracellular inflammatory signaling pathway. Treatment with SYK inhibitors rescued human cell abnormalities and resulted in clinical improvement in mice (Wang et al., 2021). [from OMIM]

MedGen UID:
1781752
Concept ID:
C5543581
Disease or Syndrome
8.

Hypernatremia

An abnormally increased sodium concentration in the blood. [from HPO]

MedGen UID:
6966
Concept ID:
C0020488
Disease or Syndrome
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