Stephanie Warkotsch popped what she thought was a hormonal pimple, but it grew back and "got bigger and bigger" across her cheek.

There is no generally accepted definition of a recurrence after surgery for a pilonidal sinus. Pathogenesis There are conflicting pathogenetic hypotheses, in which fistula formation is attributed ...

Medically reviewed by Robert Burakoff, MD A urachal cyst is a sac of tissue and fluid between the bladder and the belly ...