Presentation
Most of the patients (81%) presented by the age of six months, with 61% presenting in the first month of life, and only 7% had presented between two and five years of age. Six families had positive family history. [cags.org.ae]
The Case A term female presents with abnormal facies. [neoreviews.aappublications.org]
Milder cases can present later in life, sometimes even in adulthood. [patient.info]
Alopecia or hypotrichosis presenting from birth includes several different forms of hereditary hair loss in humans. Congenital alopecia usually presents at or soon after birth as a localized form or generalized loss of hair (generalized atrichia). [jmedicalcasereports.biomedcentral.com]
[…] impairment Congenital eye abnormality Sensorineural hearing loss • • • Back to: « Hirschsprung disease with polydactyly, renal agenesis, and deafness Back to: « Hirschsprung disease Disease Articles Deafness : Hearing loss is extremely common and can present [familydiagnosis.com]
Entire Body System
- Amyloidosis
A harmful effect of the mutant protein is involved in amyloidosis. [quizlet.com]
7 Amyloidosis, Finnish Type 1 Amyotrophic Lateral Sclerosis 16, Juvenile 1 Amyotrophic Lateral Sclerosis Type 1 3 Amyotrophic Lateral Sclerosis Type 10 4 Amyotrophic Lateral Sclerosis Type 12 2 Amyotrophic Lateral Sclerosis Type 14 1 Amyotrophic Lateral [preventiongenetics.com]
PMID: 35079082 Cardiac amyloidosis and left atrial appendage closure. The CAMYLAAC Study. [incliva.es]
Skin
- Skin Lesion
Cutaneous abnormalities include both hypopigmented lesions and hyperpigmented lesions and can resemble the lesions found in piebaldism, tuberous sclerosis, and neurofibromatosis. [neoreviews.aappublications.org]
She had multiple skin lesions in the early weeks of life that began with vesicular lesions and later evolved. A genetic test is done. Which of the following types of mutation is most likely to be found? A. Amino acid substitution B. Deletion C. [quizlet.com]
- Skin Disease
Kelsell DP, Norgett EE, Unsworth H, Teh MT, Cullup T, et al. (2005) Mutations in ABCA12 underlie the severe congenital skin disease Harlequin Ichthyosis. Am J Hum Genet 76(5):794–803 CrossRef PubMed Google Scholar 115. [link.springer.com]
Ears
- Hearing Impairment
(33%) Frequent (79-30%) HP:0001162 7 renal agenesis 59 32 frequent (33%) Frequent (79-30%) HP:0000104 8 hearing impairment 32 HP:0000365 9 hand polydactyly 32 HP:0001161 10 unilateral renal agenesis 32 HP:0000122 Genetic tests related to Hirschsprung [malacards.org]
About 1 in 1000 infants has profound hearing impairment, with half thought to be 1 ... ... More on Deafness » Hirschsprungs Disease : Hirschsprungs Disease is a congenital disorder of the colon (bowel). [familydiagnosis.com]
WAARDENBURG SYNDROME, TYPE 1; WS1 Is also known as waardenburg syndrome with dystopia canthorum;ws1; waardenburg syndrome type i Related symptoms: Autosomal dominant inheritance Hearing impairment Scoliosis Hypertelorism Strabismus SOURCES: ORPHANET MONDO [mendelian.co]
Neurologic
- Tremor
Eadie, Essential (hereditary or senile) tremor. Med. J. Aust. 1975 / 11 44–47. Google Scholar Quattromani, F., S.D. Shapiro, R.S. Young, R.J. Jorgenson, J.W. Parker, R. Blumhardt, and R.R. [link.springer.com]
Source: Neurogenetics lecture Keywords: FXTAS, dementia, tremor Explanation: The clinical history is most compatible with fragile X ataxia tremor syndrome. [quizlet.com]
Malabsorption, Hereditary 3 Follicle-Stimulating Hormone Deficiency, Isolated 6 Foveal Hypoplasia 2, with or without Optic Nerve Misrouting and/or Anterior Segment Dysgenesis 1 Foveal Hypoplasia And Presenile Cataract Syndrome 3 Fragile X Syndrome 4 Fragile X Tremor [preventiongenetics.com]
- Abnormal Gait
Gait 3 Mental Retardation-Hypotonic Facies Syndrome X-Linked, 1 4 Merosin Deficient Congenital Muscular Dystrophy 5 Metachondromatosis 1 Metachromatic Leukodystrophy 2 Metaphyseal Anadysplasia 2 1 Metaphyseal Chondrodysplasia, Jansen Type 1 Metaphyseal [preventiongenetics.com]
Workup
July 15, 2011), a database of human genes and genetic disorders, and syndromic polydactyly is commonly an autosomal recessively inherited trait. 4 Because hand and foot polydactyly are associated with congenital defects in 23.4% of patients, a genetic workup [clinicaladvisor.com]
J Med Genet 34: 582–586 PubMed Google Scholar Froster UG, Stallmach T, Wisser J et al. (1997) Lethal multiple pterygium. syndrome: Suggestion for a consistent pathological workup and review of reported cases. [link.springer.com]
X-Ray
- Multiple Renal Cysts
Source: Systems Based Disorders II slides 50-53 Keywords: Multiple renal cysts, teenage Explanation: AD Polycystic Kidney Disease (PKD) is characterized by 3 or more (unilateral or bilateral renal cysts) in an individual aged 15-39 years. [quizlet.com]
Treatment
There are two main types of clinical studies: Clinical trials determine if a new test or treatment for a disease is effective and safe by comparing groups receiving different tests/treatments. [rarediseases.info.nih.gov]
Put the very latest scientific and genetic discoveries, diagnostic imaging methods, drug therapies, treatment recommendations, and surgical techniques to work in your practice. [books.google.com]
[…] imperforate anus Genital organs Undescended testis (if treated) Hypospadias Indeterminate sex Urinary system Cystic kidney Absent kidney Ectopic kidney Double ureter/collecting system Vesico-ureteric reflux Musculo-skeletal system Talipes (requiring treatment [ww2.health.wa.gov.au]
A. treatment with bevacizumab B. treatment with everolimus C. treatment with imatinib D. nephrectomy E. treatment with rapamycin The correct answer is B. [quizlet.com]
If caught early, treatment may be managed as an outpatient after a brief period of observation. The usual treatment is oral antibiotics and rectal irrigation. [reachhd.org]
Prognosis
[…] associated with polydactyly, unilateral renal agenesis, hypertelorism, and congenital deafness.[1] Specialty Medical genetics Symptoms Gastrointestinal, limb, kidney, and hearing abnormalities Usual onset Postnatal Duration Life-long Prevention none Prognosis [en.wikipedia.org]
Support Groups Expectations (prognosis) Symptoms improve or go away in most children after surgery. A small number of children may have constipation or problems controlling stools (fecal incontinence). [mostellarmedical.org]
Contemporary surgical treatment, placement of the bowel with normal peristalsis at the anus to eliminate the tonic contraction of the internal sphincter, has led to excellent prognosis and a normal life span in >75 percent of patients. [ommbid.mhmedical.com]
[…] features and a deletion at 4p12 encompassing the PHOX2B gene has been reported. 167 Syndromes and associated anomalies Both the recognition of known entities and the delineation of novel ones including HSCR as a feature are of importance for disease prognosis [yumpu.com]
Therefore, the prognosis is largely dependent on early diagnosis and management including surgical correction. [patient.info]
Etiology
Etiology Hirschsprung disease genes RET GDNF NTRN SOX10 EDNRB EDN3 ECE1 ZFHX1B phox2b TCF4 HSCR1: dominant mutations in the RET gene (MIM.164761) in 3% of isolated sporadic Hirschsprung’s disease HSCR2 at 13q22: recessive mutation in the EDNRB gene coding [humpath.com]
Systematic review of the etiology of bilateral sensorineural hearing loss in children. Int J Pediatr Otorhinolaryngol. 2004 Sep. 68(9):1193-8. [Medline]. Mehta D, Noon SE, Schwartz E, et al. [emedicine.medscape.com]
"Analysis of a gain-of-function FGFR2 Crouzon mutation provides evidence of loss of function activity in the etiology of cleft palate". Proc. Natl. Acad. Sci. U.S.A. 107 (6): 2515–20. doi : 10.1073/pnas.0913985107. PMC 2823872. [en.wikipedia.org]
Lafon, Etiologies rares de surdites congenitales. Arch.Fr.Pediat. 42 (1986) 503–506. Google Scholar Hu, D.-N., W.-Q. Qiu, B.-T. Wu et al., Genetic aspects of antibiotic induced deafness: Mitochondrial inheritance. J. Med.Genet. 28 (1991) 79–83. [link.springer.com]
Which of the following genetic tests would be most appropriate to order in trying to determine the underlying etiology? A. Cholesterol/7-delhydrocholesterol ratio B. FMR1 analysis C. MECP2 sequence analysis D. [quizlet.com]
Epidemiology
In the later scenario, a helmet is worn for several months following surgery. [ citation needed ] Once treated for the cranial vault abnormalities, Crouzon patients generally go on to live a normal lifespan. [ citation needed ] Epidemiology [ edit ] Incidence [en.wikipedia.org]
An epidemiological study reviewed data from 2002 to 2006 in 30 countries and estimated a worldwide incidence of about 0.8 per 1,000, which is much lower than older studies. [ 6 ] The incidence of cleft palate alone is about 1 in 2,000. [patient.info]
Am J Med Genet 71: 8–15 PubMed Google Scholar Rittler M, Paz JE, Castilla EE (1997) VATERL: an epidemiologic analysis of risk factors. [link.springer.com]
Ziad et al. (2006) demonstrated a strong male predominance (5.8:1) of HD in Kuwait and proposed the importance of parental education and the necessity for further epidemiological studies of HD with concentration on genetics and consanguinity. [cags.org.ae]
Genetic epidemiology and nonsyndromic structural birth defects: from candidate genes to epigenetics. JAMA pediatrics, 168(4), 371-377. Parker SE, Mai CT, Canfield MA, Rickard R, Wang Y, Meyer RE, Correa A (2010). [centogene.com]
Pathophysiology
Comprehensively updated to reflect everything you need to know regarding retinal diagnosis, treatment, development, structure, function, and pathophysiology, this monumental ophthalmology reference work equips you with expert answers to virtually any [books.google.com]
The pathophysiology and genetics of congenital lipoid adrenal hyperplasia. N Engl J Med 335: 1870, 2005. CrossRef Google Scholar 9. Andersson HC, Frentz J, Martinez JE, Tuck-Muller CM, Bellizaire J. [link.springer.com]
Sayed and Al-Alaiyan (1996) suggested that these three conditions are due to an underlying pathophysiologic mechanism. [cags.org.ae]
The pathophysiologic mechanisms of hearing loss are unknown but Merchant et al identified separation of the basilar membrane and the basement membrane and cellular dysmorphology within the organ of corti. [17] Norrie Disease is a rare disorder caused [emedicine.medscape.com]
Bardet-Biedl syndrome: Genetics, molecular pathophysiology, and disease management. Indian J Ophthalmol. 2016;64(9): 620-627. Hufnagel RB, Arno G, Hein ND, et al. [rarediseases.org]
Prevention
Hirschsprung disease associated with polydactyly, unilateral renal agenesis, hypertelorism, and congenital deafness.[1] Specialty Medical genetics Symptoms Gastrointestinal, limb, kidney, and hearing abnormalities Usual onset Postnatal Duration Life-long Prevention [en.wikipedia.org]
[…] malnourishment and dehydration Calling your health care provider Call your child's health care provider if: Your child develops symptoms of Hirschsprung's disease Your child has abdominal pain or other new symptoms after being treated for this condition Prevention [mostellarmedical.org]
Participating in research helps researchers ultimately uncover better ways to treat, prevent, diagnose, and understand human diseases. What Are Clinical Studies? Clinical studies are medical research involving people as participants. [rarediseases.info.nih.gov]
Good diet management can prevent the weight-related problems that manifest in later life. Consulting with a primary care physician and a dietician can help in planning for adequate nutrition and prevention of excess weight gain. [rarediseases.org]