Okay, let's tackle this question about Dohlman surgery for Zenker's diverticulum. First, I need to recall what Zenker's diverticulum is. It's a type of pharyngeal diverticulum that occurs in the posterior pharyngeal wall, usually above the cricopharyngeus muscle. The Dohlman procedure is one of the surgical approaches for treating it.

The question is asking what Dohlman surgery entails. The options aren't provided, but since the correct answer is required, I need to remember the specifics. From what I remember, there are different surgical techniques for Zenker's diverticulum. The Dohlman procedure involves a posterior approach where the diverticulum is divided, and the cricopharyngeus muscle is also divided to prevent recurrence. Another common procedure is the cervical approach, like the Toupet or the Iselin procedure. The Toupet procedure uses a posterior cricopharyngeal myotomy and a diverticulectomy with a posterior wall resection. The Iselin procedure is a transoral approach where the diverticulum is removed through the mouth, but it's less common now.

Wait, the Dohlman approach is a transoral approach where the diverticulum is divided and the cricopharyngeus muscle is divided. So, it's different from the cervical approaches. The key here is that Dohlman is transoral, and it involves both diverticulectomy and cricopharyngeal myotomy. The other options might include incorrect procedures like a simple diverticulectomy without myotomy, which could lead to recurrence. Alternatively, other procedures might involve different approaches or steps.

So, the core concept is the surgical management of Zenker's diverticulum. The correct answer is Dohlman surgery, which is a transoral procedure involving division of the diverticulum and the cricopharyngeus muscle. The other options would be incorrect if they describe different procedures. For example, if an option says "diverticulectomy without cricopharyngeal myotomy," that's incorrect because it doesn't address the cricopharyngeal dysfunction. Another option might be a cervical approach, which is a different procedure. Also, if an option mentions a myotomy without diverticulectomy, that's incomplete.

The clinical pearl is to remember that Dohlman is transoral and includes cricopharyngeal myotomy to prevent recurrence. High-yield fact: Dohlman vs. Toupet. Dohlman is transoral, Toupet is cervical with posterior myotomy. Both include myotomy to prevent recurrence. So, the answer should be the transoral approach with myotomy.

**Core Concept**
Zenker’s diverticulum is a pharyngeal outpouching above the upper esophageal sphincter, often managed surgically. Dohlman surgery is a transoral procedure that combines diverticulectomy and cricopharyngeal myotomy to alleviate dysphagia and prevent recurrence.

**Why the Correct Answer is Right**
Dohlman surgery involves a transoral approach to excise the diverticulum and perform a posterior cricopharyngeal myotomy. This addresses both the diverticulum and the underlying cricopharyngeal dysfunction (achalasia of the

✓ Correct Answer: C. Endoscopic electrocautery technique