title: Secondary Sjogren's syndrome presenting with hypokalemic periodic paralysis.
abstract: Renal tubular acidosis (RTA) may develop in a large population of patients with Sjogren's syndrome (SS), but most of the subjects are asymptomatic. Here, we report a patient with known rheumatoid arthritis and symptoms of xerostomia, xerophthalmia and periodic paralysis. SS should be considered as a cause of RTA. The treatment of the underlying disorder may ameliorate the symptoms.
authors.affiliation: Department of Rheumatology , Vali-asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.
authors.forename: Taraneh
authors.initials: T
authors.lastname: Dormohammadi Toosi
authors.affiliation: Department of Internal Medicine , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.
authors.forename: Neda
authors.initials: N
authors.lastname: Naderi
authors.affiliation: Department of Rheumatology , Vali-asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.
authors.forename: Shafieh
authors.initials: S
authors.lastname: Movassaghi
authors.affiliation: Department of Dermatology , Shahed University , Tehran , Iran.
authors.forename: Mehran Heydari
authors.initials: MH
authors.lastname: Seradj
authors.affiliation: Department of Rheumatology , Vali-asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Khalvat
authors.affiliation: Department of Biology , Payame Noor University , Tehran , Iran.
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Shahbazi