It is generally believed that Kaposi's sarcoma is an endothelial cell proliferation that is controlled, in part, by focally produced cytokines and growth factors. The etiologic agent that is believed to mediate this atypical proliferation is:
A 68-year-old man presents with a 1 2 cm macular red lesion of his hard palate. This is asymptomatic, has been present for an unknown duration, and does not blanch with compression. The best clinical designation for this lesion would be:
Biopsy of a purple mass in the tongue of a 67-year-old man showed numerous vascular channels lined by benign endothelial cells. The lesion was not encapsulated, and the vascular channels were filled with blood. This is a description of a:
A 23-year-old woman developed an asymptomatic red and partially ulcerated swelling in her buccal gingiva between teeth nos. 24 and 25. She is pregnant and is in good health. This is most likely which of the following?