X linked ichthyosis = السماك المرتبط بالجنس X LINKED RECESSIVE ICHTHYOSIS In the 1960s, X-linked recessive ichthyosis was distinguished clinically from other ichthyoses. Shortly thereafter, the syndrome of placental steroid sulfatase deficiency was described in pregnancies with failure to initiate labor in association with low maternal urinary estrogens. Because the majority of maternal urinary estrogens are […]
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Xanthoma disseminatum = الاورام الصفر المنتشرة
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Xanthomas (macular) of the palms= الاورام الصفر البقعية على الراحتين
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Xeroderma pigmentosum = جفاف الجلد المصطبغ Xeroderma Pigmentosum XP serves as the prototype heritable disease with increased sensitivity to cellular injury. XP is an autosomal recessive disease with sun sensitivity, photophobia, early onset of freckling, and subsequent neoplastic changes on sun-exposed surfaces. There is cellular hypersensitivity to UV radiation and to certain chemicals in association […]
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