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1.

Bardet-Biedl syndrome

Bardet-Biedl syndrome (BBS) is characterized by rod-cone dystrophy, truncal obesity, postaxial polydactyly, cognitive impairment, male hypogonadotropic hypogonadism, complex female genitourinary malformations, and renal abnormalities. The visual prognosis for children with BBS is poor. Night blindness is usually evident by age seven to eight years; the mean age of legal blindness is 15.5 years. Birth weight is usually normal, but significant weight gain begins within the first year and becomes a lifelong issue for most individuals. A majority of individuals have significant learning difficulties; a minority have severe impairment on IQ testing. Renal disease is a major cause of morbidity and mortality. [from GeneReviews]

MedGen UID:
156019
Concept ID:
C0752166
Disease or Syndrome
2.

Microcephaly, normal intelligence and immunodeficiency

Nijmegen breakage syndrome (NBS) is characterized by progressive microcephaly, intrauterine growth retardation and short stature, recurrent sinopulmonary infections, an increased risk for cancer, and premature ovarian failure in females. Developmental milestones are attained at the usual time during the first year; however, borderline delays in development and hyperactivity may be observed in early childhood. Intellectual abilities tend to decline over time and most children tested after age seven years have mild to moderate intellectual disability. Recurrent pneumonia and bronchitis may result in respiratory failure and early death. Approximately 40% of affected individuals have developed malignancies before age 20 years, with the risk being highest for T-cell (55%) and B-cell lymphomas (45%). Other tumors include solid tumors (e.g., medulloblastoma, glioma, and rhabdomyosarcoma). Note, however, that much of what is reported about NBS is based on individuals who are homozygous for the single most common Eastern European pathogenic variant, c.657_661del5. [from GeneReviews]

MedGen UID:
140771
Concept ID:
C0398791
Congenital Abnormality; Disease or Syndrome
3.

Polydactyly

A congenital anomaly characterized by the presence of supernumerary fingers or toes. [from HPO]

MedGen UID:
57774
Concept ID:
C0152427
Congenital Abnormality
4.

Retinal degeneration

A retrogressive pathological change in the retina, focal or generalized, caused by genetic defects, inflammation, trauma, vascular disease, or aging. Degeneration affecting predominantly the macula lutea of the retina is MACULAR DEGENERATION. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p304) [from MeSH]

MedGen UID:
48432
Concept ID:
C0035304
Finding; Pathologic Function
5.

Obesity

Obesity means having too much body fat. It is different from being overweight, which means weighing too much. The weight may come from muscle, bone, fat, and/or body water. Both terms mean that a person's weight is greater than what's considered healthy for his or her height. . Obesity occurs over time when you eat more calories than you use. The balance between calories-in and calories-out differs for each person. Factors that might affect your weight include your genetic makeup, overeating, eating high-fat foods, and not being physically active. . Being obese increases your risk of diabetes, heart disease, stroke, arthritis, and some cancers. If you are obese, losing even 5 to 10 percent of your weight can delay or prevent some of these diseases. For example, that means losing 10 to 20 pounds if you weigh 200 pounds. NIH: National Institute of Diabetes and Digestive and Kidney Diseases.  [from MedlinePlus]

MedGen UID:
18127
Concept ID:
C0028754
Disease or Syndrome
6.

Renal abnormalities

MedGen UID:
852379
Concept ID:
CN235079
Finding
7.

Ciliopathy

MedGen UID:
852061
Concept ID:
CN234683
Disease or Syndrome
8.

Polydactyly

MedGen UID:
776570
Concept ID:
C2117329
Finding
9.

Obesity

MedGen UID:
368429
Concept ID:
C1963185
Finding
10.

Bardet-Biedl syndrome 10

Bardet-Biedl syndrome (BBS) is characterized by rod-cone dystrophy, truncal obesity, postaxial polydactyly, cognitive impairment, male hypogonadotropic hypogonadism, complex female genitourinary malformations, and renal abnormalities. The visual prognosis for children with BBS is poor. Night blindness is usually evident by age seven to eight years; the mean age of legal blindness is 15.5 years. Birth weight is usually normal, but significant weight gain begins within the first year and becomes a lifelong issue for most individuals. A majority of individuals have significant learning difficulties; a minority have severe impairment on IQ testing. Renal disease is a major cause of morbidity and mortality. [from GeneReviews]

MedGen UID:
347909
Concept ID:
C1859568
Disease or Syndrome
11.

Cognitive impairment

Abnormality in the process of thought including the ability to process information. [from HPO]

MedGen UID:
151917
Concept ID:
C0683322
Mental or Behavioral Dysfunction
12.

Cognitive impairment

a condition where a person has problems with the ability to think and learn [from CHV]

MedGen UID:
90932
Concept ID:
C0338656
Mental or Behavioral Dysfunction
13.

Hydrocolpos

Distention of the vagina caused by accumulation of fluid due to congenital vaginal obstruction. [from HPO]

MedGen UID:
278046
Concept ID:
C1399870
Disease or Syndrome
14.

Inborn genetic diseases

Diseases that are caused by genetic mutations present during embryo or fetal development, although they may be observed later in life. The mutations may be inherited from a parent's genome or they may be acquired in utero. [from MeSH]

MedGen UID:
181981
Concept ID:
C0950123
Disease or Syndrome
15.

Abnormality of the nervous system

An abnormality of the nervous system that is present at birth or detected in the neonatal period. [from NCI]

MedGen UID:
105425
Concept ID:
C0497552
Congenital Abnormality; Disease or Syndrome
16.

Motor polyneuropathy

MedGen UID:
82885
Concept ID:
C0271683
Disease or Syndrome
17.

Alstrom syndrome

Alström syndrome is characterized by cone-rod dystrophy, obesity, progressive sensorineural hearing impairment, dilated or restrictive cardiomyopathy, the insulin resistance syndrome, and multiple organ failure. Wide clinical variability is observed among affected individuals, even within the same family. Cone-rod dystrophy presents as progressive visual impairment, photophobia, and nystagmus usually starting between birth and age 15 months. Many individuals lose all perception of light by the end of the second decade, but a minority retain the ability to read large print into the third decade. Children usually have normal birth weight but develop truncal obesity during their first year. Progressive sensorineural hearing loss presents in the first decade in as many as 70% of individuals. Hearing loss may progress to the severe or moderately severe range (40-70 db) by the end of the first to second decade. Insulin resistance is typically accompanied by the skin changes of acanthosis nigricans, and proceeds to type 2 diabetes in the majority by the third decade. Nearly all demonstrate associated dyslipidemia. Other endocrine abnormalities can include hypothyroidism, hypogonadotropic hypogonadism in boys, and polycystic ovaries in girls. More than 60% of individuals with Alström syndrome develop cardiac failure as a result of dilated or restrictive cardiomyopathy. About 50% of individuals have delay in early developmental milestones; intelligence is normal. Liver involvement includes elevation of transaminases, steatosis, hepatosplenomegaly, and steatohepatitis. Portal hypertension and cirrhosis can lead to hepatic encephalopathy and life-threatening esophageal varices. Pulmonary dysfunction and severe renal disease may also develop. End-stage renal disease (ESRD) can occur as early as the late teens. [from GeneReviews]

MedGen UID:
78675
Concept ID:
C0268425
Congenital Abnormality; Disease or Syndrome
18.

Polyneuropathy

A generalized disorder of peripheral nerves. [from HPO]

MedGen UID:
57502
Concept ID:
C0152025
Disease or Syndrome
19.

Hereditary motor and sensory neuropathy

A group of slowly progressive inherited disorders affecting motor and sensory peripheral nerves. Subtypes include HMSNs I-VII. HMSN I and II both refer to CHARCOT-MARIE-TOOTH DISEASE. HMSN III refers to hypertrophic neuropathy of infancy. HMSN IV refers to REFSUM DISEASE. HMSN V refers to a condition marked by a hereditary motor and sensory neuropathy associated with spastic paraplegia (see SPASTIC PARAPLEGIA, HEREDITARY). HMSN VI refers to HMSN associated with an inherited optic atrophy (OPTIC ATROPHIES, HEREDITARY), and HMSN VII refers to HMSN associated with retinitis pigmentosa. (From Adams et al., Principles of Neurology, 6th ed, p1343) [from MeSH]

MedGen UID:
45066
Concept ID:
C0027888
Disease or Syndrome
20.

Hereditary eye diseases

Transmission of gene defects or chromosomal aberrations/abnormalities which are expressed in extreme variation in the structure or function of the eye. These may be evident at birth, but may be manifested later with progression of the disorder. [from MeSH]

MedGen UID:
41933
Concept ID:
C0015398
Disease or Syndrome
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