PMC5712643_01
Reticular, erythematous lesions involving the maxillary and mandibular gingiva.
TODENTJ-11-520_F1.jpg
PMC5712643_01_TODENTJ-11-520_F1.jpg
F1
These reticular, erythematous lesions involving his gingiva are shown in (Fig. 1a). Fig. (1b) shows a post-operative photograph illustrating the site and extent of the excision.
Post operative photograph of healed hard palate excisional biopsy.
TODENTJ-11-520_F1b.jpg
PMC5712643_01_TODENTJ-11-520_F1b.jpg
F1b
A well-circumscribed, encapsulated mass was visible within the subepithelial collagen, as seen in Fig. (2).
Mass of smooth muscle with small angulated vasculature. H and E, x40.
TODENTJ-11-520_F2.jpg
PMC5712643_01_TODENTJ-11-520_F2.jpg
F2
In this case, as seen in Figs. (3a and 3b), immunochemistry for S100 was negative and smooth muscle actin was strongly positive.