Yonsei Med J.  2006 Feb;47(1):122-125. 10.3349/ymj.2006.47.1.122.

An Unusual Odontogenic Cyst with Diverse Histologic Features

• Yoon JH
• Ahn SG
• Kim SG
• Kim J

• KMID: 1715881
• DOI: http://doi.org/10.3349/ymj.2006.47.1.122

Abstract

An unusual odontogenic cyst, which was originally believed to be a clinical dentigerous cyst associated with an impacted mandibular third molar, was found histologically to demonstrate the characteristics of a glandular odontogenic cyst with para- and orthokeratinization. These histologic diversities were interpreted as a reflection of the pluripotentiality of the epithelial remnants of the mandibular third molars or dentigerous cyst epithelium. It is possible that it has the capacity to induce the formation of cysts in both squamous and glandular epithelium.

Keyword

Glandular odontogenic cyst; odontogenic keratocyst; dentigerous cyst; mandible

MeSH Terms

Tomography, X-Ray Computed
Odontogenic Cysts/*pathology/radiography/surgery
Mandibular Diseases/*pathology/radiography/surgery
Mandible/radiography
Humans
Female
Epithelium/pathology
Aged

Figure

• 

  Fig. 1 Computed tomogram demonstrating a well demarcated cystic lesion with buccolingual expansion of the right mandible. A third molar tooth is impacted within the lesion.

• 

  Fig. 2 A. Photomicrograph showing a non-keratinized squamous epithelium with cuboidal surface cells and an epithelial plaque of swirl-like arrangement (H-E, ×100). B. The cyst lining showing papillary projections, duct-like structures and clusters of goblet cells, resembling a glandular acinus (H-E, ×200).

• 

  Fig. 3 A. The lining epithelium is composed of a uniform layer of stratified squamous epithelium, with a hyperchromatic and palisaded basal cell layer. There is a corrugated parakeratotic surface, showing typical features of odontogenic keratocysts (H-E, ×200). B. The epithelial lining showing prominent keratohyaline granules beneath the orthokeratotic surface (H-E, ×200).

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