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Anat Cell Biol. 2018 Dec;51(4):299-301. English. Case Report.
Cha MK , Kang SW , Maeng YH , Kim J , Yoon SP .
Medical Course, School of Medicine, Jeju National University, Jeju, Korea.
Department of Pathology, Jeju National University School of Medicine, Jeju, Korea.
Department of Anatomy, Jeju National University School of Medicine, Jeju, Korea.
Institute for Medical Science, Jeju National University, Jeju, Korea.

Killian-Jamieson diverticulum is a permanent protrusion of anterolateral proximal esophagus through anatomically weak muscular gap, known as Killian-Jamieson area, into adjacent area. During a routine educational dissection, we found a well-defined lateral diverticulum just inferior to the transverse fibers of the cricopharyngeus muscle in a Korean male cadaver. It had a dimension of 1.8×1.4×1.0 cm with two types of epithelial cells, stratified squamous and simple cuboidal to low-columnar epithelium, and attenuated and haphazardly arranged muscle fibers. No epithelial dysplasia or malignant transformation was identified except ulcerative changes. Although Killian-Jamieson diverticulum is a very rare disease, clinicopathological aspects should be considered.

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