X
X chromosome
in Charcot-Marie-Tooth disease 1024
in Duchenne muscular dystrophy 1036
fragile site on, mental retardation and 1705
in idiopathic torsion dystonia 1011
in Klinefelter's syndrome 1180 1707
in Turner's syndrome 1189
x descent 314
X-inactive-specific transcriptase (XIST), in Klinefelter's syndrome 1180
X-linked bulbospinal neuronopathy 1022
X-ray studies See specific disorder and under Radiation
Xalacom See Latanoprost/timolol
Xalatan See Latanoprost
Xanax See Alprazolam
Xanthogranulomatous cholecystitis 687
Xanthomas
in biliary cirrhosis 675
eruptive 1244
in diabetes mellitus 1198 1225
tendinous 1244
Xerosis
in HIV infection/AIDS 1328
in vitamin A deficiency 1276
Xerostomia
radiation therapy causing 1683
in Sj gren's syndrome 842
Ximelagatran, for hypercoagulability 532
XIST See X-inactive-specific transcriptase
XO karyotype, in Turner's syndrome 1189
XPD gene, chemotherapy response and 1661
XRCC1 gene, chemotherapy response and 1661
XXY karyotype 1180
XY females (testicular feminization syndrome) 1170
13C/14C-Xylose test, in bacterial overgrowth 605
D-Xylose test, in bacterial overgrowth 605