User: 

You are given access to make searches on the Internet. The format for making a search is:
1. After the user sends a message, you will decide whether to make a search. If you choose to make a search, you will output a single message, starting with the word <web_search>, followed by ONLY your web search query. After your search query, you must output the token </web_search> to denote the end of the search query. Keep your search query very concise.
2. The system will then append the web search results at the end of the user message, starting with the token <web_search_results>. Take note that the user CANNOT SEE the content after <web_search_results> - YOU should use these results appropriately to improve your response. Additionally, If the web search results are already present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason. However, you must not refuse to search the web if the user asks you to do so.
If you are highly unsure about whether to make a search (e.g. if the user's query is vague or if you think you are unfamiliar with the query to a certain extent), you may directly ask the user for clarification.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Remember that you MUST NOT make up any false information.
Assistant: Understood. I will strictly follow these instructions in this conversation.
User: 

mickel's diverticulum role of 60
Assistant:  ItIt seems like you are asking about **Meckel's diverticulum** and its relation to the age of 60, or perhaps the role or significance of Meckel's diverticulum in a 60-year-old patient.

### Meckel's Diverticulum Overview:
- **Meckel’s diverticulum** is a congenital true diverticulum resulting from the incomplete obliteration of the vitelline (omphalomesenteric) duct.
- It is the most common congenital anomaly of the gastrointestinal tract.
- Located on the antimesenteric border of the ileum, usually within 60-100 cm of the ileocecal valve.
- Typically presents in childhood, often before age 2, but may remain asymptomatic and be found incidentally later in life.

### Role or Clinical Significance in Older Adults (e.g., age 60):
- **Though often asymptomatic, Meckel’s diverticulum can cause complications at any age, including in 60-year-olds.**
- Complications that may present later in life include:
  - **Bleeding:** Usually more common in children, but can occur at any age due to ulceration from ectopic gastric mucosa.
  - **Intestinal obstruction:** Due to intussusception, volvulus, or a fibrous band connected to the diverticulum.
  - **Diverticulitis:** Inflammation of the Meckel’s diverticulum mimicking appendicitis.
  - **Perforation** due to inflammation or ulceration.
  - **Tumors:** Rarely, neoplasms (carcinoid, adenocarcinoma) can arise in Meckel’s diverticulum, which is sometimes diagnosed in older patients.

### Diagnosis in Older Adults:
- Often incidental finding during imaging, surgery, or investigation of other causes of abdominal pain.
- **Technetium-99m pertechnetate scan** is sensitive for ectopic gastric mucosa, but its sensitivity decreases with age.
- CT scan, MRI, or exploratory laparoscopy may be used depending on clinical scenario.

### Management:
- Symptomatic Meckel’s diverticulum generally requires surgical resection.
- Asymptomatic Meckel's diverticulum discovered incidentally in elderly patients is controversial regarding prophylactic removal due to surgical risks and lower incidence of complications in older age.

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### Summary:
- **Meckel’s diverticulum can remain silent until late adulthood, including age 60.**
- In older patients, it may present with complications like bleeding, obstruction, or inflammation that require diagnosis and management.
- Awareness of Meckel’s diverticulum as a possible cause of abdominal symptoms in older adults is important for differential diagnosis.

If you meant something else by "role of 60" or need specific information (e.g., statistics, management in the elderly), please clarify!
User: i mean which rule does indicate it ?
Assistant: