Case Report: Acquired Brown Syndrome after COVID-19 Vaccination.

Significance: Brown syndrome, or superior oblique tendon sheath syndrome, is characterized by limitation of elevation on adduction. The disorder is thought to involve the trochlea/superior oblique tendon complex through traumatic, surgical, and inflammatory mechanisms. It could be an indication of multiple underlying immunological or rheumatological disorders.

Seasonal variation of lupus nephritis in a cohort of Egyptian patients.

Introduction: Systemic lupus erythematosus is an autoimmune multisystem disease; renal affection is one of its most common manifestations. The effect of environmental factors on lupus nephritis flares is not fully understood.

Methods: This is a retrospective study that included 200 patients with lupus nephritis flares.