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Patchy hypo- and hyperpigmentation

MedGen UID:
867215
Concept ID:
C4021573
Disease or Syndrome
Synonym: Patchy hypo- and hyper-pigmentation
 
HPO: HP:0007509

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVPatchy hypo- and hyperpigmentation

Conditions with this feature

Albinism-hearing loss syndrome
MedGen UID:
375573
Concept ID:
C1845068
Disease or Syndrome
Syndrome with characteristics of congenital nerve deafness and piebaldness without ocular albinism. Transmission is X-linked with affected males presenting with profound sensorineural deafness and severe pigmentary abnormalities of the skin and carrier females presenting with variable hearing impairment without any pigmentary changes. The causative gene has been mapped to Xq26.3-q27.1.
Deaf blind hypopigmentation syndrome, Yemenite type
MedGen UID:
355712
Concept ID:
C1866425
Disease or Syndrome
An exceedingly rare genetic disorder with characteristics of cutaneous pigmentation anomalies, ocular disorders and hearing loss. The syndrome was described in 1990 in two patients from the same Yemenite family. A brother and sister were described as having cutaneous patchy hypo and hyperpigmentation on the trunk and extremities, gray hair, white brows and lashes. Ocular manifestations were microcornea, coloboma and abnormalities of the anterior chamber of the eye. Both patients had severe hearing loss and dental abnormalities. Intelligence was reported to be normal. Their parents were unaffected and possibly consanguineous. The cause of this syndrome has not been determined. The inheritance pattern appears to be autosomal recessive.

Recent clinical studies

Etiology

Schmidt D, Jung CE, Wolff G
Graefes Arch Clin Exp Ophthalmol 1994 Feb;232(2):96-102. doi: 10.1007/BF00171670. PMID: 8157181

Diagnosis

Sone I, Honda T, Sakuraba M, Satoh K, Kuwajima Y, Baba S, Wada Y
Cleft Palate Craniofac J 2024 Mar;61(3):534-538. Epub 2022 Nov 28 doi: 10.1177/10556656221141236. PMID: 36443947
Rawool A, Srivastava P, Phadke SR
J Genet 2020;99 PMID: 32482921

Prognosis

Schmidt D, Jung CE, Wolff G
Graefes Arch Clin Exp Ophthalmol 1994 Feb;232(2):96-102. doi: 10.1007/BF00171670. PMID: 8157181

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