A superfemale with primary Sjögren's syndrome which involved systemic organs.

A 52-year-old Japanese woman complicated by a sex chromosomal anomaly as a superfemale, a mosaic of XXXXX/XXXX/XXX/XX/XO, with mild mental retardation, was hospitalized for dry mouth, dry eyes, and proteinuria. The sialography of the right parotid gland showed a globular-type gland enlargement. A definite diagnosis of primary Sjögren's syndrome (SS) was made, and further examinations revealed not only typical sicca syndrome but also systemic extraglandular lymphocytic infiltration; interstitial pneumonitis, glomerular- and interstitial nephritis, superficial gastritis, thyroiditis, and a severe excitation conductive impairment of heart. We report a very rare case of superfemale with primary SS which involved systemic organs.