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. 2018 Dec;13(4):408-410.
doi: 10.1016/j.jds.2018.09.002. Epub 2018 Oct 4.

Intravascular papillary endothelial hyperplasia in the lower labial mucosa mimicking a mucocele

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Intravascular papillary endothelial hyperplasia in the lower labial mucosa mimicking a mucocele

Ming-Chih Chen et al. J Dent Sci. 2018 Dec.
No abstract available

Keywords: CD31; CD34; Immunohistochemistry; Intravascular papillary endothelial hyperplasia; Lower lip.

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Figures

Fig. 1
Figure. 1
Histological and immunostaining microphotographs of our case of intravascular papillary endothelial hyperplasia. (A) Low-power view showed two masses of proliferating endothelial cells with papillary surface each associated with a residual organizing thrombus in two dilated vascular spaces (H&E stain, original magnification, 2×). (B) Medium-power view revealed a mass of proliferating endothelial cells (upper part) associated with a residual organizing thrombus (lower part) (H&E stain, original magnification, 4×). (C) Medium-power view demonstrated a mass of proliferating endothelial cells (right 4/5) associated with a residual organizing thrombus (left upper 1/5) (H&E stain, original magnification, 10×). (D) High-power view exhibited proliferating endothelial cells with papillary projections (H&E stain, original magnification, 20×). The proliferating endothelial cells were positive for both CD31 (E and F, immunostaining, original magnification, 2× and 20×, respectively) and CD34 (G and H, immunostaining, original magnification, 2× and 20×, respectively).

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