Killian-Jamieson diverticulum
Classification according to ICD-10 | |
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K22.5 | Diverticulum of the esophagus, acquired |
ICD-10 online (WHO version 2019) |
The Killian-Jamieson diverticulum , like the much more common Zenker's diverticulum, is a pulsation diverticulum on the upper esophagus - sphincter . However, it has its origin immediately below the sphincter and is therefore, in contrast to Zenker's diverticulum, actually a diverticulum of the esophagus.
Killian- Jamieson diverticula can be grouped as a permanent shape (diverticula also recognizable in the resting phase between two swallowing acts ) with the transient pouches of this region (only protruding during swallowing).
The localization to the ventrolateral immediately below the cricopharyngeal muscle or to the dorsal through the Laimer triangle results from the anatomical weak points here. Contributing to this are pressure peaks between individual muscle parts in the uppermost part of the esophagus.
Killian-Jamieson diverticula rarely exceed 1.5 cm in size. Diverticulum carriers are usually symptom-free, which is explained by the fact that any retained food particles cannot reach the pharynx or the airways, as is the case with Zenker's diverticulum .
literature
- Stefan Feuerbach (Ed.): Handbook of diagnostic radiology. Gastrointestinal system. Springer, Berlin et al. 2007, ISBN 978-3-540-41418-6 .
- Stephen E. Rubesin, Marc S. Levine: Killian-Jamieson Diverticula. Radiographic Findings in 16 Patients. In: American Journal of Roentgenology. Vol. 177, 2001, pp. 85-89, doi : 10.2214 / ajr.177.1.1770085 .