PMC10436745_01
(A-C) Clinical presentation of the lesion. The 7 mm long x 9 mm wide x 5 mm high lesion over palatal gingiva of upper right lateral incisor had grown over the course of 6 months and became tender upon palpation. The lesion was generally firm but compressible pink to red, round, exophytic mass covered with normal keratinized tissue.
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F1
Clinical evaluation revealed a 7 mm x 9 mm x 5 mm convex, sessile, firm, depressible, round, pink, exophytic soft tissue lesion located along the palatal gingival margin of the upper right lateral incisor covered with normal keratinized tissue (Figures 1A-C).
Histological examination of PCOC. Microscopic examination showing an oral soft tissue specimen with keratinized and non-keratinized epithelium with fibrous connective tissue. A cystic area in the fibrous connective tissue lined with well-defined layer of palisading ameloblastic-like basal cells, loosely arranged supra-basal epithelial cells resembling stellate reticulum, eosinophilic ghost cells devoid of nuclei, and basophilic calcification. Scattered chronic inflammatory cells were present. (A) HE x 4; (B) HE x 10; (C) HE x 20).
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F2
PCOC was confirmed microscopically and photomicrographs are presented in Figures 2A-C. Patient was seen two weeks later for post-operative check with normal healing noted.
3-year follow-up of the area after excision of PCOC noted for normal healing and no recurrence of the lesion.
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F3
At the 3-year follow-up, no recurrence of the lesion was noted and patient continued to report no concern or complication (Figure 3).