Solve with reason
Reading File
Finding Sources
Finding Sources
The answer is a) Systemic Sclerosis (Scleroderma)
Reasoning
Each clinical clue points specifically to systemic sclerosis:
| Clinical Feature | Relevance to Systemic Sclerosis |
|---|---|
| 35-year-old female | Systemic sclerosis predominantly affects women (F:M ratio ~4:1), peak onset 30–50 years |
| Generalized swelling | Early skin involvement — diffuse puffiness/swelling of hands/face is a hallmark early feature (puffy fingers) |
| Multiple joint pain × 3 years | Arthralgia/polyarthritis is common, often an early presenting feature |
| Difficulty swallowing × 1 year | Esophageal dysmotility (lower 2/3 is smooth muscle → affected by fibrosis) causes dysphagia — the GI tract is the most commonly affected internal organ |
| Exertional breathlessness × 6 months | Pulmonary involvement — either interstitial lung disease (ILD) or pulmonary arterial hypertension (PAH), both hallmark complications |
Why not the others?
- b) SLE — SLE causes joint pain and can cause serositis/breathlessness, but dysphagia is not a feature. SLE rarely involves the esophagus.
- c) Dermatomyositis — Can cause dysphagia (pharyngeal muscle weakness) and proximal muscle weakness, but the dominant feature is skin rash (heliotrope, Gottron's papules) and proximal muscle weakness, not generalized swelling with progressive fibrosis.
- d) Rheumatoid arthritis — Primarily a joint disease. While it can cause pulmonary complications, dysphagia is not a feature, and "generalized swelling" in the context described fits scleroderma's skin edema far better.
Key Discriminating Features
The triad of dysphagia + pulmonary symptoms + joint pain in a young woman with swelling is classic for systemic sclerosis. The progressive multi-system involvement (skin → GI → lungs) over months to years is the characteristic disease course of scleroderma.
Answer: a) Systemic Sclerosis
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