Manifestaciones oftalmológicas compatibles con el síndrome de Waardenburg / Ophthalmological manifestations compatible with Waardenburg syndrome

RESUMEN El síndrome de Waardenburg es una enfermedad genética, con criterios diagnósticos como la distopia cantorum, las anomalías pigmentarias del iris, el hipertelorismo y la conjunción de las cejas. Se presentan dos casos de una misma familia quienes asistieron a la consulta de Oftalmología con manifestaciones compatibles con el síndrome de Waardenburg. Paciente de 12 años con asociación típica que inclu ye conjunción de las cejas, alteraciones en la pigmentación del iris (iris azul zafiro) y distopia cantorum, a los que se le une el antecedente de hipoacusia. Su madre, paciente de 37 años de edad, quien presenta la asociación típica, inclu ye alteraciones en la pigmentación del cabello (mechón de canas) y del iris (iris azul zafiro), distopia cantorum y antecedente de hipoacusia. El propósito de este estudio fue dar a conocer dos casos de la misma familia con una entidad infrecuente en la especialidad. No obstante, se pueden encontrar manifestaciones oftalmológicas que son compatibles con su diagnóstico, por lo que es elemental dirigir nuestra acción hacia una aten ción en forma interdisciplinaria y una remisión oportuna(AU)

ABSTRACT Waardenburg syndrome is a genetic disorder with diagnostic criteria such as dystopia canthorum, iris pigmentary abnormalities, hypertelorism and synophrys. A case is presented of two members of the same family who attend the ophthalmology service for manifestations compatible with Waardenburg syndrome. The two patients are a 12-year-old girl with a typical association, which includes synophrys, iris pigmentary alterations (brilliant blue iris) and dystopia canthorum, as well as a history of hypoacusis, and her 37-year-old mother, who presents the typical association, which includes alterations in the pigmentation of her hair (a forelock of white hair) and iris (brilliant blue iris), dystopia canthorum and a history of hypoacusis. The purpose of the study is to present two cases from the same family with a condition which is infrequent in the specialty. However, ophthalmological manifestations may be found which are compatible with its diagnosis, which should obviously enough lead to actions aimed at interdisciplinary care and timely referral(AU)

Type 3 Waardenburg Syndrome

PURPOSE: We report a case of Type 3 Waardenburg syndrome accompanied by intermittent exotropia, which had not previously been encountered in Korea along with the literature study. METHODS: A 5-year-old boy visited as a result of hypochromic heterochromic iridum in the right eye. Suspecting Type 3 Waardenburg syndrome, plain radiography, a hearing test, an alternate prism cover test and fundus examinations were performed and the presence of lateral displacement of the lacrimal puntum was evaluated. RESULTS: The presence of hypochromic heterochromic iridum, dysplasia of the left thumb, sensorineural deafness, dystopia canthorum along with a lateral displacement of the lacrimal puntum, albinism of the posterior pole upon a fundus examination, and intermittent exotropia with a 20 prism diopters of deviation were found. CONCLUSIONS: This patient showed the 4 criteria for a diagnosis of Type 3 Waardenburg syndrome including hypochromic heterochromic iridum, dystopia canthorum along with lateral displacement of the lacrimal puntum, sensorineural deafness, and a muscular system abnormality, i.e., dysplasia of the left thumb. He also showed intermittent exotropia.

Three Cases of Waardenburg Syndrome Type 2 in a Korean Family

Waardenburg syndrome (WS) is a rare, autosomal dominant disorder characterized by sensorineural hearing loss, pigmentary disturbances of the skin, hair, and iris, and other developmental defects such as lateral displacement of both medial canthi and lacrimal puncta called dystopia canthorum. While mutations of the PAX3 (paired box) gene have been identified in about 99% of WS type 1 cases, WS type 2 is a heterogeneous group, with about 15% of cases caused by mutations in microphthalmia associated transcription factor (MITF). We have experienced three cases of typical WS type 2 in a Korean family, for whom full ocular examination and genetic studies were performed. The genetic studies revealed no mutation in either PAX3 or MITF genes. The genetic basis, as yet unknown for most cases of WS type 2, might be found with further investigation.

A Case of Waardenburg`s Syndrome

Waardenburg`s syndrome is a rare hereditary disease, which is characterized by dystopia canthorum, hypochromic heterochromic iridum, sensorineural deafness,high and broad nasal bridge, white forelock and premature graying. We present a case of 27 year old woman with Waardenburg`s syndrome. She has characteristic features such as dystopia canthorum, broad and high nasal bridge, confluent eyebrow(synophrys), hypochromic heterochromic iridum, depigmented fundus and premature graying.