Thyroid gland
Other nonneoplastic
Killian-Jamieson diverticulum


Topic Completed: 1 May 2015

Minor changes: 17 September 2020

Copyright: 2015-2020, PathologyOutlines.com, Inc.

PubMed Search: Killian-Jamieson diverticulum thyroid

Andrey Bychkov, M.D., Ph.D.
Page views in 2019: 349
Page views in 2020 to date: 229
Cite this page: Bychkov A. Killian-Jamieson diverticulum. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/thyroidkjdivert.html. Accessed October 20th, 2020.
Definition / general
  • Permanent protrusion of anterolateral cervical esophagus through anatomically weak muscular gap (Killian-Jamieson triangle) into adjacent area near thyroid (J Clin Ultrasound 2009;37:528)
  • Not a true diverticulum as it does not involve all layers of esophagus
  • Incidentally detected on neck ultrasound and could be misdiagnosed as thyroid nodule (Head Neck 2012;34:599)
Terminology
  • Also called proximal lateral cervical esophageal diverticulum, lateral hypopharyngeal diverticulum or diverticulum from pharyngoesophageal junction area
Epidemiology
  • Uncommon; usually over 50 years old
Sites
Pathophysiology
Clinical features
Diagnosis
  • Based primarily on radiographic findings, not endoscopy
  • Accidentally found in FNA of "thyroid nodules"
Radiology description
  • Barium contrast esophagography, neck CT, neck ultrasound
Case reports
Treatment
  • Transcutaneous surgery for symptomatic or large sized cases
Clinical images

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Scheme

Smooth walled

Large diverticulum

Cervical CT

Gross description
Gross images

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Pharyngoesophagographic
findings

Microscopic (histologic) description
Cytology description
  • Abundant bland, mature squamous cells, single and in clusters, with background of inflammatory cells and debris (Thyroid 2009;19:1121)
  • May contain vegetable material, skeletal muscle fibers and bacteria / fungi, consistent with oropharyngeal contents (Head Neck 2012;34:599)
  • No / few follicular cells
Differential diagnosis
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