1. Common presentations of a common disease.
2. Rare presentations of a common disease.
3. Common presentations of a rare disease.
4. Rare presentations of a rare disease.
Consider the following aspects while making your diagnosis:
What are the possible events may have taken place before, during and after a disease. Preventive phase, Acute Phase and rehabilitative phase.
Consider partially treated or symptoms arising from side effects of treatment.
For elderly, consider presentations of aging process! (giants of geriatrics!)