Brief Answer: different areas can be checked Detailed Answer: Hi, thanks for using healthcare magic The term differential diagnosis refers to different conditions that can be diagnosed based on the symptoms a person presents. i.e- the conditions that can cause the symptoms a person has For example if some one had chest pain, the differential diagnosis would be heart disease, muscle pain, lung disease etc. Endoscopy is a test done to take a closer look inside the body. Endoscopy can actually refer to looking at almost any hollow organ, it would be given a more specific name according to the system reviewed. For example looking at the esophagus and stomach- oesophagogastroduodenoscopy There are different indications for this test but the indications may vary slightly with the system being assessed. The most common indications for the tests may be: weight loss, anemia, pain in particular area, investigations of presenting symptoms. It can show bleeding areas, abnormal growths that may be cancerous or benign, ulcers, inflammation The potential results from endoscopy would vary according to the system being checked. You would need to specify the area that was assessed. i hope this helps, feel free to ask any additional questions

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