Dohlman's procedure is for:

Explanation

## Correct Answer: A. Zenker's diverticulum Dohlman's procedure is an **endoscopic diverticuloesophagostomy** specifically designed for Zenker's diverticulum (ZD). ZD is a pharyngeal pouch arising at Killian's dehiscence (between the inferior pharyngeal constrictor and cricopharyngeus muscle at the junction of pharynx and esophagus). The classic presentation includes dysphagia, regurgitation of undigested food, halitosis, and aspiration risk. Dohlman's procedure creates a common cavity between the diverticulum and esophagus by dividing the common wall endoscopically, converting a blind pouch into a patent channel. This is particularly valuable in Indian practice for elderly or medically unfit patients who cannot tolerate external approaches (diverticulectomy or diverticulopexy). The procedure avoids external neck incision, reduces morbidity, and has become increasingly popular with modern endoscopic instrumentation. It addresses the pathophysiology directly—converting the stagnant pouch into a functioning part of the esophageal lumen, thereby eliminating food retention and aspiration risk. ## Why the other options are wrong **B. Bochadlek hernia** — Bochadlek hernia is a **congenital diaphragmatic hernia** at the posterolateral aspect of the diaphragm (foramen of Bochadlek), managed surgically by primary repair of the defect. It has no association with Dohlman's procedure, which is an esophageal endoscopic technique. This option exploits confusion between different anatomical hernias and surgical approaches. **C. Meckel's diverticulum** — Meckel's diverticulum is a **remnant of the vitelline duct** in the ileum, managed by diverticulectomy or segmental resection if symptomatic (bleeding, obstruction, or inflammation). Dohlman's procedure is irrelevant here—it is an esophageal endoscopic technique, not an intestinal surgical approach. This is a classic distractor pairing two different diverticula. **D. Menetrier's disease** — Menetrier's disease is a **hyperplastic gastropathy** characterized by giant gastric folds and protein-losing enteropathy, managed medically (PPIs, H. pylori eradication) or by gastrectomy if refractory. Dohlman's procedure is an esophageal endoscopic technique unrelated to gastric pathology. This option mixes gastric disease with an esophageal procedure. ## High-Yield Facts - **Dohlman's procedure** = endoscopic diverticuloesophagostomy for Zenker's diverticulum; creates common cavity between pouch and esophagus. - **Killian's dehiscence** = site of Zenker's diverticulum formation (between inferior pharyngeal constrictor and cricopharyngeus). - **Zenker's diverticulum** presents with dysphagia, regurgitation, halitosis, and aspiration risk; more common in elderly males. - **Dohlman's advantage** over external approaches = avoids neck incision, reduces morbidity, suitable for medically unfit patients in Indian practice. - **Meckel's diverticulum** (vitelline duct remnant) and **Bochadlek hernia** (diaphragmatic defect) are managed by different surgical techniques, not endoscopic procedures. ## Mnemonics **ZD Surgery Ladder** **Z**enker's → **D**ohlman's (endoscopic) or **D**iverticulectomy (external). Dohlman = endoscopic, Diverticulectomy = open. **Killian's Pouch** **K**illian's dehiscence → **Z**enker's pouch. Remember: Killian = the weak spot where ZD forms. ## NBE Trap NBE pairs Zenker's diverticulum with other diverticula (Meckel's) and hernias (Bochadlek) to test whether students confuse different anatomical sites and their surgical management. The trap is assuming all diverticula are managed the same way—they are not. ## Clinical Pearl In Indian tertiary centers, Dohlman's procedure has become the preferred first-line approach for symptomatic Zenker's diverticulum in elderly patients with comorbidities, avoiding the morbidity of external cervical approaches. A patient presenting with chronic halitosis and regurgitation of undigested food should immediately raise suspicion for ZD, and endoscopic evaluation should precede any surgical planning. _Reference: Bailey & Love Ch. 62 (Esophageal Surgery); Harrison Ch. 283 (Disorders of the Esophagus)_