PMC5899808_01
Intraoral view before surgery of the oral collagenous fibroma reported, revealing two well-defined sessile nodules, bilaterally in the hard palate, covered by a healthy mucosa.
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F1
Intraoral examination revealed a well-defined submucosal sessile nodule, bilaterally, measuring each one 5.0 x 2.0 x 1.0 cm, with a firm consistency and covered by a healthy mucosa (Fig. 1).
Photomicrographs of the oral collagenous fibroma reported (Hematoxylin and Eosin). (a) Normal epithelium coating a dense connective tissue (50X). (b) Dense collagen bundles with scarcely fibroblasts, poorly vascularization and few inflammatory cells (100X). (c) Spindle-shaped or stellate fibroblasts, some of them bi or trinucleated (200X). (d) Multinucleated cells embedded in a dense connective tissue (400X).
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F2
No mitosis, necrosis, cystic degeneration, or infiltration of adipose tissue was noted (Fig. 2).
Intraoral view 24 months after surgery of the oral collagenous fibroma reported, displaying no clinical signs of recurrence.
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F3
The patient showed no clinical signs of recurrence 24 months after surgical procedure (Fig. 3).