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A novel very rare form of pontocerebellar hypoplasia with unknown aetiology and poor prognosis reported in four patients. It has clinical characteristics in the neonatal period of hypotonia, no palpable gonads, micropenis and from infancy progressive microcephaly, apnoeic episodes, poor feeding, seizures and regression of penis. MRI demonstrates a pontocerebellar hypoplasia. PCH7 is expressed as PCH with 46,XY disorder of sex development in individuals with XY karyotype, and may be expressed as PCH only in individuals with XX karyotype.
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A novel very rare form of pontocerebellar hypoplasia with unknown etiology and poor prognosis reported in four patients. It has clinical characteristics in the neonatal period of hypotonia, no palpable gonads, micropenis and from infancy progressive microcephaly, apneic episodes, poor feeding, seizures and regression of penis. MRI demonstrates a pontocerebellar hypoplasia. PCH7 is expressed as PCH with 46,XY disorder of sex development in individuals with XY karyotype, and may be expressed as PCH only in individuals with XX karyotype.
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