Abstract
Gingival growths, barring a few are mostly reactive and seldom exhibit significant true neoplastic potential. The common etiology is local irritation from dental plaque/calculus, trauma as well as medication-related overgrowth. Such lesions are easily distinguishable and categorized into diagnoses such as pyogenic granuloma, peripheral ossifying fibroma, etc. We present a previously undescribed, but commonly encountered, reactive gingival growth with unique histologic features and suggest the diagnostic term “gingival fibroma.” An IRB approved retrospective review of the University of Florida Oral Pathology Biopsy Service encompassing years 2010–2019, was performed to select cases. Demographics, clinical data, and microscopic diagnoses were recorded and analyzed. Four board-certified oral and maxillofacial pathologists agreed upon and established the diagnostic criteria. These are: a prominent fibromyxoid stroma, variable cellularity, a whorled or storiform pattern of arrangement of the cellular elements, lack of significant inflammation or vascularity, and complete absence of calcification, and/or odontogenic islands. A total of 60 cases met all criteria and were included in the study. Age range in years was 14–87 with the mean at 45.11 years. A striking female predilection (90%) was noted. Approximately 62% of cases were reported on the maxillary gingiva, followed by 38.3% in the mandibular gingiva. Majority, 66.7% were in the anterior incisor region followed by 11.7% in the canine/first premolar areas. All lesions were submitted as excisional biopsy, and 4 cases recurred within 2–3 years of excision. In all cases, lesional tissue appeared to extend to the surgical base of the specimen. We present 60 cases of a histologically unique entity occurring exclusively on the gingiva and introduce the diagnostic term “Gingival Fibroma” for these lesions. Further studies with adequate clinical follow-up may help understand the exact clinical behavior of these lesions.
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Bawazir, M., Islam, M.N., Cohen, D.M. et al. Gingival Fibroma: An Emerging Distinct Gingival Lesion with Well-Defined Histopathology. Head and Neck Pathol 15, 917–922 (2021). https://doi.org/10.1007/s12105-021-01315-7
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DOI: https://doi.org/10.1007/s12105-021-01315-7