List and briefly explain differential diagnosis of abdominal distension of 5 month duration in a 10 years old male

1. Constipation: Chronic constipation can lead to abdominal distension, as the buildup of stool in the intestines causes bloating and discomfort.

2. Irritable Bowel Syndrome (IBS): IBS is a common gastrointestinal disorder that can cause abdominal pain, bloating, and changes in bowel habits. It often presents with chronic abdominal distension.

3. Gastrointestinal obstruction: An obstruction in the gastrointestinal tract can cause abdominal distension, as trapped gas and fluid build up behind the blockage.

4. Intestinal parasites: Infections such as giardiasis or roundworms can lead to symptoms like abdominal distension, as the parasites disrupt the normal functioning of the intestines.

5. Inflammatory bowel disease (IBD): Conditions like Crohn's disease and ulcerative colitis can cause chronic inflammation in the intestines, leading to symptoms like abdominal distension.

6. Celiac disease: Celiac disease is an autoimmune disorder triggered by gluten consumption, which can lead to inflammation in the intestines and symptoms like abdominal distension.

7. Ovarian cyst: In males, a rare possibility is the presence of an ovarian cyst, which can cause abdominal distension and pain.

8. Ascites: Ascites is the abnormal accumulation of fluid in the abdominal cavity, often caused by liver disease, heart failure, or certain cancers.

It is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment plan for abdominal distension lasting for an extended period of time in a child.