Neuroepithelial Structures and Oral Pathology

Neuroepithelial structures in the oral cavity comprise specialised clusters of epithelial cells intimately associated with nerve fibres. These include embryonic remnants such as the juxtaoral organ of Chievitz and subgemmal neurogenous plaques. Under normal conditions these structures are clinically silent but may mimic invasive lesions or harbour pathological alterations. Advances in histological and immunohistochemical techniques have elucidated their microanatomy, revealing unique zonal organisation, taste‐bud associations and perineural niches. Aberrations in these structures contribute to misdiagnoses in oral pathology, leading to unnecessary surgical interventions or delayed treatment. Developmental cysts such as lymphoepithelial cysts further illustrate the intersection of epithelial and lymphoid elements, often presenting as small, benign nodules yet prone to confusion with neoplastic processes. The global significance of this research lies in improving diagnostic accuracy, refining surgical approaches and informing screening strategies for at‐risk populations. Ongoing interdisciplinary studies are clarifying the molecular guidance cues that govern neuroepithelial development and their role in pathological transformations, highlighting opportunities for novel biomarkers and targeted therapies.

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Neuroepithelial Structures and Oral Pathology publication trend

The graph below shows the total number of articles in neuroepithelial structures and oral pathology across all publications each year (not limited to Nature Index journals).

Technical terms

Juxtaoral organ of Chievitz: Embryonic epithelial–nerve complex in soft tissue adjacent to the mandible, often mistaken for perineural spread.

Subgemmal neurogenous plaque: Subepithelial neural plexus beneath tongue papillae, exhibiting distinct neurofibroma‐like and neuroma‐like zones, sometimes containing taste buds.

Lymphoepithelial cyst: Benign developmental cyst lined by stratified squamous epithelium with surrounding lymphoid tissue, commonly found on the tongue or floor of mouth.

Perineural invasion: Pathological penetration of tumour cells into nerve sheaths, in contrast to benign nerve‐associated epithelial islands.

Immunohistochemistry: Technique employing antigen–antibody reactions to detect specific proteins in tissues, essential for differentiating neuroepithelial structures from neoplasia.

References

1. The Juxtaoral Organ: From Anatomy to Clinical Relevance. Diagnostics (2022).
2. Neuroepithelial Structures of the Oral Soft Tissues Including the Juxtaoral Organ of Chievitz: A Literature Review and Audit of Diagnosed Cases. Head and Neck Pathology (2020).
3. Subgemmal neurogenous plaques of the tongue: a systematic autopsy study. Romanian Journal of Morphology and Embryology (2022).
4. A Retrospective Clinico-Pathological Analysis with Review of Literature of Oral and Cervical Lympho-Epithelial Cysts from a Pathological Perspective. Applied Sciences (2022).