Differential Diagnosis for a 37-year-old Female with Episcleritis and High ESR
Single Most Likely Diagnosis
- Rheumatoid Arthritis (RA): Episcleritis can be associated with RA, and a high ESR (Erythrocyte Sedimentation Rate) is a common finding in this condition. Although the patient has no systemic complaints, RA can initially present with ocular symptoms.
Other Likely Diagnoses
- Systemic Lupus Erythematosus (SLE): SLE can cause episcleritis and is associated with a high ESR. It's a multisystem disease that can have a wide range of presentations, including minimal systemic symptoms initially.
- Sjögren's Syndrome: This autoimmune disorder can cause episcleritis and is often associated with a high ESR. It primarily affects the exocrine glands, but systemic manifestations can occur.
- Inflammatory Bowel Disease (IBD): Both Crohn's disease and ulcerative colitis can be associated with episcleritis and elevated inflammatory markers like ESR.
Do Not Miss Diagnoses
- Wegener's Granulomatosis (Granulomatosis with Polyangiitis, GPA): Although less common, GPA is a potentially life-threatening condition that can cause episcleritis and has a high ESR. It requires prompt diagnosis and treatment to prevent serious complications.
- Relapsing Polychondritis: This rare condition involves inflammation of cartilage and can cause episcleritis. It's essential to consider due to its potential for severe systemic involvement.
- Sarcoidosis: While often presenting with pulmonary symptoms, sarcoidosis can cause episcleritis and have a high ESR. It's crucial not to miss this diagnosis due to its potential for multi-organ involvement.
Rare Diagnoses
- Behçet's Disease: A form of vasculitis that can cause episcleritis among other symptoms. It's rare but should be considered, especially if other systemic symptoms develop.
- Reactive Arthritis (formerly Reiter's Syndrome): Typically follows a gastrointestinal or genitourinary infection, and can cause episcleritis. It's less likely without a clear precipitating infection but remains a consideration.
- Episcleritis associated with Infections: Certain infections (e.g., herpes zoster, Lyme disease) can cause episcleritis. These would be less likely without specific exposure history or other symptoms but should be kept in mind for a comprehensive differential diagnosis.