Match each cause of pericardial disease with its correct aetiological category:
Causes:
1. Tuberculosis
2. Uraemia
3. Rheumatoid arthritis
4. Radiotherapy
Categories:
A. Infectious
B. Metabolic-endocrine
C. Connective-tissue disease
D. Haematology-oncology-related
Answer
1-A, 2-B, 3-C, 4-D
Explanation
The lecture groups pericardial causes by broad aetiological category. **Tuberculosis** is infectious; **uraemia** is metabolic-endocrine; **rheumatoid arthritis** is a connective-tissue disease; and **radiotherapy-induced** disease is listed under haematology-oncology. Matching causes to categories helps structure a differential diagnosis rather than relying on an unorganized list. **Key takeaway:** Classification by cause helps guide evaluation of pericardial disease. **Glossary:** **Connective-tissue disease**: a disorder affecting tissues that support or connect body structures. **Radiotherapy**: treatment using radiation, which may be associated with pericardial disease.