Pharyngeal DiverticulUm – Dnb Theory/ osce/ VIVA
- 1. Definition: Pharyngeal pouches
- 2. DIVERTICULA Types and Definition
- 3. Inferior constrictor:
- 4. Hypopharyngeal areas of weakness:
- 5. Killian's dehiscence:
- 6. History:
- 7. Aetiology:
- 8. Clinical Features:
- 9. Acquired lateral pharyngeal diverticula:
- 10. Radiologically
- 11. Traumatic:
- 12. Raised intrapharyngeal pressure (Pharyngoceles):
- 13. Symptoms:
- 14. Posterior pouches:
- 15. Congenital Posterior diverticula:
- 16. Acquired posterior diverticula:
- 17. Posterior pharyngeal pulsion (Zenker's) diverticulum:
- 18. Stages of posterior pharyngeal diverticulum:
- 19. Treatment:
- 20. Endoscopic diathermy: Dohlmann's operation:
Definition: Pharyngeal pouches
are mainly acquired and rarely congenital diverticula in and around the pharynx and oesophagus. These diverticula are nothing but circumscribed pouches caused by a protrusion of mucosa through a preexisting weakness / opening in the muscle layers of pharynx / oesophagus.
These pharyngo oesophageal diverticula may be single of multiple. It could be sited laterally or posteriorly. Majority of them arise above the level of cricopharyngeus muscle, rarely some of them may arise at the level of oesophagus.
DIVERTICULA Types and Definition
True diverticula: all layers of esophageal wall represented
Pseudodiverticulum: consists only of mucosa and submucosa
Pulsion: associated with elevated intraluminal pressure
Traction: arise from extraluminal tugging by adjacent sites of inflammation and fibrosis
Inferior constrictor:
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