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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Neurocutaneous Disorders Phakomatoses and Hamartoneoplastic Syndromes.
This article has been cited by other articles in PMC. See also linear and whorled nevoid hypermelanosis LWNH;a benign pigmentation disorder with some similarities.
hipomelanosis de Ito – English Translation – Word Magic Spanish-English Dictionary
Epidermal mosaicism and Blaschko’s lines. Since the ring was very small, the finding suggests that the IP locus is juxtacentromeric, e. They also suggested that all patients with ITO due to Xp11 mutation have functional or genetic mosaicism. Hypomelanosis of Ito incontinentia pigmenti achromians –a clinicopathologic study: The facial phenotype coupled with the bilateral globus pallidi lesions were never been reported in association with HI.
Heterogeneous seizure manifestations hipomelsnosis Hypomelanosis of Ito: Familial hypomelanosis of Ito: The clinical manifestations of HI are variable, but the most remarkable clinical markers are distinct patterns of skin involvement along the lines of Blaschko consisting of hypopigmented bizarre macular zones or spots with irregular borders, whorls, patches or linear white streaks with various patterns of distribution and colors, that appear frequently on the trunk, occasionally on the extremities, and seldom on the face and scalp with sparing of the palms, hipomelanpsis, and mucous membranes.
As in the case of Hipomelanosid et al. Management and treatment Treatment of the cutaneous lesions is not required. The diversity of chromosome rearrangements seemed to argue against a monogenic nature of this disorder, but the existence of deletion in 1 case and of supernumerary fragments in 2 other cases suggested to Turleau et al.
Areas of abnormal skin pigmentation were first noted when he was six months old.
The hypopigmented areas of skin of our patient correspond to the Blaschko lines that was first described in by the German dermatologist. They stated that hupomelanosis involvement may help identify these individuals.
Hypomelanosis of Ito incontinentia pigmenti achromians: Hypomelanosis of Ito, Brain ee accumulation, Neurocutaneous syndrome. Journal of Medical Genetics ; Metabolic screening including biotindase level was normal.
Q-banding analysis showed that the translocated chromosomes were of paternal origin. Characterization of PLA2G6 as a locus for dystonia-parkinsonism. Etiology Various chromosomal anomalies have been identified in some patients and several authors have suggested that the phenotype recognized as HI is the result of cutaneous mosaicism, either for a monogenic or a chromosomal disorder, rather than being a distinct disease.
EEG and evoked potential studies. Prognosis The prognosis is determined by the associated abnormalities. Craniofacial, cardiac, renal, and gonadal abnormalities [ 89 ]. They concluded that the breakpoints in 3 of the 5 patients whom they studied was separated by a distance of at least 1, kb. His recent MRI evaluation revealed bilateral low signal intensity within the basal ganglia particularly golbus pallidi as well as in the cerebellar folia on both T2 Weighted images and diffusion weighted images consistent with iron deposition as seen in neurodegenerative disorders with brain iron accumulation Figure 3.
The Pigmentary System and Its Disorders. Brain and Development 9: Our patient had a complex constellation of skin, systemic and neurologic features, including mosaic hypopigmentation along the lines of Blaschko [ 38 ] facial dysmorphism, joint hypermobility, skeletal dysplasia including short stature, dental abnormalities, and congenital hip abnormalityhypotonia, seizures and mild mental retardation-all consistent with the diagnosis of hypomelanosis of Ito or pigmentary mosaicism of the Ito type [ 3 — 5 ].
Of mice, persons, and pigment.
Pigmentary abnormalities and mosaicism for chromosomal aberration: Quatre cas de maladie d’Ito familiale encephalopathie congenitale et dyschromie: The human homolog of the mouse ‘pink-eyed dilution’ locus maps to human 15qq Neurol Sci ; Other manifestations include patchy alopecia, hipmelanosis abnormalities include ridging, dystrophy, and absence of nails.
This leads to characterization of HI as a neurocutaneous disorder. Moss and Burn hipomelanosia a year-old man who had this disorder. Autosomal dominant inheritance was demonstrable in some.
Nevertheless, heterotropic gray matter and regional cortical dysplasia have been described [ 1616 ]. It is now known that HI is a systemic disease with other manifestations arisingpredominatelywithinthecentralnervoussystem and the musculoskeletal system [ 3 — 7 ]. The borders between dark and light skin were sharper than usually seen in the postinflammatory hyperpigmentation of incontinentia pigmenti.
Isolated and widespread clinical forms were reported. Author information Copyright and License information Disclaimer.
The neurologic aspects of hypomelanosis of Ito: Case report and review of the literature
Cranial magnetic resonance imaging revealed normal finding initially, however; follow-up diffusion weighted images were suggestive of a possible iron accumulation. Furthermore, he developed an allergic skin reactions and, therefore, carbamazepine was switched to levetiracetam Keppra that resulted in control of his seizures.
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