Anti RO (SSA) antibodies are seen in:
Systemic sclerosis
Subacute cutaneous lupus
Myasthenia gravis
Mixed connective tissue disorder
Anti Ro (SSA) antibodies Not specific for SLE It predisposes to subacute cutaneous lupus and to neonatal lupus with congenital hea block, Thus helping in screening neonatal lupus. It is associated with decreased risk for nephritis.
Auto Immune Disorders Introduction