From Wikidoc - Reading time: 3 min

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S[2]
Helicobacter pylori infection must be differentiated from other diseases that cause nausea, vomiting, abdominal pain, epigastric pain and unexplained weight loss such as atrophic gastritis, GERD, gastrinoma, peptic ulcer disease, gastric adenocarcinoma, stress-induced gastritis and non-Hodgkin's lymphoma.
H. pylori infection must be differentiated from:[1][2][3][4][5][6][7][8][9]
| Disease | Cause | Symptoms | Diagnosis | Other findings | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pain | Nausea
& Vomiting |
Heartburn | Belching or
Bloating |
Weight loss | Loss of
Appetite |
Stools | Endoscopy findings | |||||
| Location | Aggravating Factors | Alleviating Factors | ||||||||||
| Acute gastritis |
|
Food | Antacids | ✔ | ✔ | ✔ | - | ✔ | Black stools | - | ||
| Chronic gastritis |
|
Food | Antacids | ✔ | ✔ | ✔ | ✔ | ✔ | - | H. pylori gastritis
Lymphocytic gastritis
|
- | |
| Atrophic gastritis | Epigastric pain | - | - | ✔ | - | ✔ | ✔ | - | H. pylori
|
Autoimmune gastritis diagnosis include:
| ||
| Crohn's disease | - | - | - | - | - | ✔ | ✔ |
|
|
|||
| GERD |
|
|
|
✔
(Suspect delayed gastric emptying) |
✔ | - | - | - | - |
|
Other symptoms:
Complications
| |
| Peptic ulcer disease |
|
|
|
|
✔ | ✔ | - | - | - | Gastric ulcers
Duodenal ulcers
|
Other diagnostic tests | |
| Gastrinoma |
|
- | - | ✔
(suspect gastric outlet obstruction) |
✔ | - | - | - | Useful in collecting the tissue for biopsy |
Diagnostic tests
| ||
| Gastric Adenocarcinoma |
|
- | - | ✔ | ✔ | ✔ | ✔ | ✔ |
|
Esophagogastroduodenoscopy
|
Other symptoms | |
| Primary gastric lymphoma |
|
- | - | - | - | - | ✔ | - | - | Useful in collecting the tissue for biopsy | Other symptoms
| |