Making the world better, one answer at a time. Angel Dust is one of the street names of Phencyclidine, or PCP. It is a drug formerly used as an anesthetic agent, exhibitinghallucinogenic and neurotoxic effects.
A blow to the rib cage can cause either a fracture or bruising to the membrane that covers the bone (periosteum). Both can be very painful, and it is very often hard to distinguish the difference, even with a X-ray.
Iliolumbar syndrome, also known as iliac crest pain syndrome, involves an inflammation or tear of the iliolumbar ligament. This ligament extends from the spine to the iliac crest, which is the back of the pelvis.