Chae Ruffold, 15, has so far had two failed operations to repair the wound caused by a Pilonidal cyst. The wound, caused by an ingrown hair, is unable to heal due to a genetic condition affecting ...
BACKGROUND: Vellus hair cyst is an uncommon developmental abnormality of the vellus follicle histologically defined as a stratified squamous epithelial-lined cyst containing one or more vellus hairs.