The Case of the Hemorrhagic Gingival Mass

image of gingival mass
The following Case Challenge is provided in conjunction with the American Academy of Oral and Maxillofacial Pathology.
This case challenge presents a patient with a gingival mass arising from the buccal interdental papilla between teeth #19 and #20.

This 24-year old black female presented with a chief complaint of this gingival mass.  She states she first noticed the lesion about three months ago and it has gotten progressively larger.  What is your diagnosis?

After you have finished reviewing the available diagnostic information, make the diagnosis.