Yes, that's a "pseudomamma" on the foot:
In the plantar region of the patient's left foot, there was a well-formed nipple was surrounded by areola and hair on the surface, measuring 4.0 cm in diameter, with no palpable nodes (Figs. 1 and 2). The remaining physical examination was normal, including the mammary line.
Link [a scholarly article, if you want to read it] - via jwz
not that this is really so terrible. but still. gah. i was eating.
--TwoDragons
Makes me wonder what evolutionists think of that... Some sort of atavism? Love to hear that one explained! ;o)