## **Core Concept**
The patient's presentation of recurrent abdominal pain radiating to her back, along with a dilated pancreatic duct on imaging, is suggestive of **chronic pancreatitis**. Chronic pancreatitis is a condition characterized by inflammation of the pancreas leading to its progressive damage and impairment of both exocrine and endocrine functions. The management of chronic pancreatitis, especially when complicated by a dilated pancreatic duct, often requires surgical intervention to alleviate pain and improve pancreatic drainage.

## **Why the Correct Answer is Right**
The correct answer, **Puestow Procedure (or Puestow-Gillesby procedure)**, also known as a lateral pancreaticojejunostomy, is a surgical operation often recommended for patients with **chronic pancreatitis** and a **dilated pancreatic duct** (> 7 mm). This procedure involves creating a side-to-side anastomosis between the dilated pancreatic duct and a loop of jejunum, allowing for improved pancreatic drainage and often significant pain relief. It is particularly suitable for patients with a dilated pancreatic duct and those whose symptoms are refractory to medical management.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because, although a **pancreaticoduodenectomy (Whipple procedure)** is a surgical option for pancreatic disease, it is typically reserved for more complex cases, such as pancreatic cancer in the head of the pancreas, and not primarily for chronic pancreatitis with a dilated duct.
- **Option B:** **Distal pancreatectomy** is considered for lesions or diseases affecting the body or tail of the pancreas. It's not the first-line surgical approach for chronic pancreatitis with a dilated pancreatic duct.
- **Option D:** **Total pancreatectomy** is a radical procedure usually considered for diffuse disease of the pancreas, such as multifocal pancreatic cancer. It leads to diabetes and requires lifelong insulin and enzyme replacement, making it a less favorable option for chronic pancreatitis unless absolutely necessary.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the **Puestow procedure** is specifically beneficial for patients with **chronic pancreatitis** and a **significantly dilated main pancreatic duct**. This procedure can offer substantial pain relief and improved quality of life. However, patient selection and evaluation of the pancreatic duct diameter are critical factors in determining the suitability of this surgical intervention.

## **Correct Answer:** . **Puestow Procedure**