1. Terminal ileum is the most common site for these tumours in the gastrointestinal tract
2. These tumors arise from Kulchitsky cells situated at the base of intestinal crypts
3. 5-Hydroxytryptamine is the most common vasoactive peptide produced by these tumors
4. Serum chromogranin A is a useful marker for disease recurrence
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This question asks to identify the correct statements about Carcinoid tumours from the given options.
Carcinoid Tumour Statements Analysis
Let's analyze each statement regarding Carcinoid tumours:
Statement 1: Site of Carcinoid Tumours
The statement claims the terminal ileum is the most common site for gastrointestinal carcinoid tumours. While the small intestine, including the ileum, is a frequent location, the appendix is statistically the most common site, followed by the small intestine overall. Therefore, this statement is often considered incorrect when specific accuracy is required.
Statement 2: Origin of Carcinoid Tumours
This statement identifies Carcinoid tumours as arising from Kulchitsky cells (also known as enterochromaffin cells) located at the base of intestinal crypts. This is correct, as these neuroendocrine cells are the origin of most carcinoid tumours.
Statement 3: Vasoactive Peptide Production
The statement asserts that 5-Hydroxytryptamine (5-HT, or Serotonin) is the most common vasoactive peptide produced by these tumours. This is accurate. Serotonin is a primary substance secreted by carcinoid tumours, often leading to carcinoid syndrome symptoms.
Statement 4: Diagnostic Marker for Recurrence
This statement suggests Serum chromogranin A is a useful marker for detecting disease recurrence. This is correct. Chromogranin A is a general marker for neuroendocrine cell activity and is often elevated in patients with carcinoid tumours. Monitoring its levels can help detect recurrence or metastatic disease.
Conclusion on Carcinoid Tumour Statements
Based on the analysis:
- Statement 1 is incorrect.
- Statement 2 is correct.
- Statement 3 is correct.
- Statement 4 is correct.
Therefore, the correct statements are 2, 3, and 4.
The option that includes statements 2, 3, and 4 is the correct answer.
Important Questions from Intestines
- A 22-year female has presented with a history of malaise, cough, alternating constipation and diarrhoea with intermittent abdominal pain for last 6 months. She also complains of abdominal distension for last 2 days. On examination her abdomen has a doughy feel along with an ill defined mass over the right lower quadrant. She is most likely suffering from:
- Gentleman of 56 years underwent laparoscopic left hemicolectomy for diagnosed left colonic carcinoma. Histopathology revealed the tumour to be invading submucosa and muscularis propria. Among the 16 regional lymph nodes harvested, 2 were positive for malignant deposits.
His staging as per AJCC will be: - A 40 year old female patient presents with colicky abdominal pain associated with episodes of mild diarrhoea for last 6 months accompanied with intermittent fever and weight loss. There are multiple discharging sinuses on perineal examination. The most likely clinical diagnosis in this patient is:
- An eight month old male child is brought to the emergency with recurrent episodes of screaming and drawing up of legs. The child appears to be listless in between the attacks. Local examination of abdomen reveals feeling of emptiness in the right iliac fossa and blood stained mucus is found on the finger on per rectal examination. The most probable clinical diagnosis in this child is
- Which of the following statements regarding Ogilvie's syndrome are correct?
1. It presents as acute large bowel mechanical obstruction
2. Marked caecal dilatation is a common feature on X-ray abdo- men
3. Caecal perforation is a well recog- nized complication of this condi- tion
4. Intravenous Neostigmine is used for the treatment of this condition
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