[Reiter's syndrome in children: a clinical analysis of 22 cases].

Objective: To study the clinical features of Reiter's syndrome (RS) in children.

Method: Twenty-two patients with RS were referred to our department between August 2002 and September 2008. Their clinical features were analyzed retrospectively.

[Macrophage activation syndrome in children with rheumatic disorders: a retrospective study on 6 patients].

Objective: To study the clinical manifestations of rheumatic disorders with macrophage activation syndrome (MAS) in children.

Methods: The authors characterized MAS by carrying out a retrospective study on patients who were identified during the past 12 years in Tianjin Children's Hospital.

Results: Six cases (4 females, 2 males) were studied.