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National Journal of Maxillofacial Surgery
 
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CASE REPORT
Year : 2017  |  Volume : 8  |  Issue : 1  |  Page : 81-84

Report of a rare cyst at a rare site: Heterotopic gastrointestinal cyst partially lined with dermoid cyst epithelium


1 Department of Oral Pathology, Pt. B.D. Sharma University of Health Sciences, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
2 Department of Oral Surgery, Pt. B.D. Sharma University of Health Sciences, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India
3 Department of Oral Medicine and Radiology, Pt. B.D. Sharma University of Health Sciences, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India

Correspondence Address:
Anjali Narwal
Department of Oral Pathology, Post Graduate Institute of Dental Sciences, Rohtak - 124 001, Haryana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/njms.NJMS_67_15

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Heterotopic gastrointestinal cysts (HGCs) of the oral cavity are rare benign lesions mimicking benign or malignant pathologies. These cysts are usually discovered during infancy but may not appear until well into adulthood. The epithelial lining of these cysts shows variable presentation with the presence of an enteric lining as an essential component. The histogenesis is related to entrapment of undifferentiated, noncommitted endoderm within the oral cavity during the 3rd–4th week of fetal life. We report a rare case of oral HGC located at a very rare site, i.e., infratemporal fossa with histopathologic features that included portions resembling dermoid cyst also. Histopathology and etiopathogenesis of the lesion are discussed. Origin from misplacement of embryonic remnants, i.e., undifferentiated endodermal cells is suggested.


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