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Ítem Síndrome otopalatodigital tipo II, aproximación prenatal y diagnóstico clínico de un caso complejo de displasia ósea(Sociedad Chilena de Obstetricia Y Ginecologia, 2012-01-01) Pachajoa Londoño, Harry MauricioEl síndrome otopalatodigital tipo 2 (OPD2), es una rara entidad con herencia recesiva ligada al cromoso- ma X, letal, caracterizada por facies anormales con hipoplasia centrofacial, hipertelorismo ocular, paladar hendido, talla baja, huesos largos curvos, sindactilia en pies y manos y anomalías óseas. Usualmente ori- ginadas en mutaciones en el gen de la filamina A (FLNA). Se reporta un caso, con diagnóstico prenatal de osteocondrodisplasia que posteriormente por hallazgos al examen físico y radiológicos del recién nacido se clasifico como síndrome otopalatodigital tipo 2.Ítem Detección de un caso síndrome de Pallister-Killian diagnosticado por citogenética convencional(Editorial Ciencias Medicas, 2015-07-01) Duque Moncaleano, NathalyPallister-Killian syndrome occurs from a tetrasomy of chromosome 12 short arm in some body cells due to the presence of isochromosome (12p) whereas the rest of cells have normal chromosomal complement. This phenomenon is called chromosomal mosaicism. It is considered to occur sporadically, with very low chance of recurrence and affects both women and men. Pallister-Killian syndrome or tetrasomy 12p mosaicism has wide non-specific phenotype characterized by higher frequency of hypotonia, severe mental retardation, deafness and seizures that may worsen as age increases. This is the report of a child diagnosed with Pallister-Killian syndrome in Colombia, which makes reference to difficulties in diagnosing a chromosomal anomaly, since this syndrome is not suspected and the testing for conventional karyotype may provide negative results.