Hypomelanosis of Ito, also called incontinentia pigmenti achromians, is a rare birth . Although hypomelanosis of Ito syndrome is most commonly a de novo. Hypomelanosis of Ito (IH) or incontinentia pigmenti achromians (Mendelian Inheritance in .. Pascual-Castroviejo I, López-Rodriguez L, de la Cruz Medina M. La hipomelanosis de ito, es un síndrome neurocutáneo con un grado de despigmentación dérmica variable y alteraciones del neurodesarrollo.

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At the most recent re-evaluation, at the age of 15 years, the child had improved language skills and his intelligence quotient score was Clinical Syndrome or Just Phenotype? Hypomelanosis of Ito–a nonspecific marker of somatic mosaicism: It is associated with decreased melanosome synthesis and the transfer of melanosome to neighboring keratinocytes. A non-progressive speech delay have been reported occasionally, mainly in the form of delay in the production of speech sounds, in communication milestones and specific expressive language disabilities according to the diagnostic and Statistical Manual of Mental Disorders-IV [ 37 ].

Hypomelanosis of Ito incontinentia pigmenti achromians and mosaicism for a microdeletion of 15q1. Care should be multidisciplinary with periodic consultations with a pediatric ophthalmologist, neurologist and orthopedic specialist, depending of the associated anomalies.

This leads to characterization of HI as a neurocutaneous disorder.

Arch Dermatol ; Abnormalities of the eyes and the musculoskeletal and central nervous systems occur in some Jelinek et al. Clinical and histopathologic characteristics of nevus depigmentosus.


A single case of nevus depigmentosus systematicus bilaterlis. Pigmentary dysplasias, hypomelanosis of Ito, and genetic mosaicism. Craniofacial abnormalities include macrocephaly, low set ears, small nose, and orbital hypertelorism. Brain and Development ; Our patient had no previous blood transfusion, no family history of hematological illnesses or neurodegenerative disorders, and did not manifest clinical regression of developmental milestones or neurological signs suggestive of evolving neurodegenerative disorders such as extrapyramidal manifestations.

Neurological complications in 34 dw.


Arteriovenous malformation in hypomelanosis of Ito. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.

Cannizzaro and Hecht observed a female with typical IP who displayed an X;10 translocation with breakpoints in Xp By fluorescence in situ hybridization, Pellegrino et al.

His skin, general examination, and neurologic findings were unchanged.

Analysis of 54 cases of hypopigmentation and hyperpigmentation along the lines of Blaschko. October 9; 8 He showed progressive improvement in his language skills. When associated with hyperpigmented macules, neurofibromatosis types 1 or 2 see these termsand a homozygous state for mismatch repair genes should also be hipomelanosus in the differential diagnosis. In a girl with IP, mental retardation, and short stature, de Grouchy et al. Hypomelanosis of Ito and Moyamoya Disease.

Mosaicism in cutaneous pigmentation.

Orphanet: Hipomelanosis de Ito

Hypomelanosis of Ito and precocious puberty. The borders between dark and light skin were sharper than usually seen in the postinflammatory hyperpigmentation of incontinentia pigmenti. The documents contained in this web site are presented for information purposes only.


BoxRiyadhSaudi Arabia, Fax: The latter manifested as hypotonia, generalized seizures, and mild mental retardation. His pregnancy and delivery were uneventful and he passed through a normal neonatal period. The patient was treated with carbamazepine. Contrary to incontinentia pigmenti, ds skin manifestations, are not preceded by inflammatory or degenerative changes, and can be present at birth or develop during childhood.

Hipomelanossis metabolic, endocrinology including thyroid function test, growth hormone, cortisol, insulin and insulin like growth factor 1, and sex hormonesinfection screening including throat swab and antistreptolysin ASO titer were normal.

American Journal of Medical Genetics ; The mother, from whom she inherited the translocation, had hipomelanosls cutaneous abnormality but had had tonic-clonic seizures as a child with spontaneous remission.

The neurologic aspects of hypomelanosis of Ito: Case report and review of the literature

Prognosis The prognosis is determined by the associated abnormalities. Mules observed a balanced translocation, t X;4 q21;q28in a girl with probable incontinentia pigmenti.

Other types of central nervous system lesions have been demonstrated by computed hipomekanosis or magnetic resonance imaging in isolated cases [ 5614 ].

Oxford University Press Nevous depigmentosus is a congenital, nonprogressive disorder characterized by hypopigmented spots on the skin [ 21 ]. No entity, but a cutaneous sign of mosaicism.

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