The Koebner phenomenon has been reported to develop in classic or acquired 
immune deficiency syndrome-related Kaposi's sarcoma (KS). A 12-year-old kidney 
transplant recipient who developed immunosuppression-related KS showed 
reoccurrence of lesions in some previously intact incision sites following 
removal of tumor, suggesting Koebner phenomenon. It is recommended that surgeons 
be careful when planning surgical interventions in patients with certain skin 
disorders in which Koebner phenomenon is known to develop.