An anxiety disorder that develops in reaction to physical injury or severe mental or emotional distress, such as military combat, violent assault, natural disaster, or other life-threatening events. Having cancer may also lead to PTSD. Symptoms interfere with day-to-day living and include reliving the event in nightmares or flashbacks; avoiding peo... Found on http://www.cancer.gov/dictionary?expand=P
PTSD: Post-traumatic stress disorder. (The abbreviation PTSD has rapidly gained in popularity because saying 'post-traumatic stress disorder' can be enough of a mouthful as to be stressful in itself.) Found on http://www.medterms.com/script/main/art.asp?articlekey=22491
A disorder that occurs among survivors of severe environmental stress symptoms include anxiety, insomnia, flashbacks, and nightmares. Patients with PTSD are unnecessarily vigilant; they may experience survivor guilt, and they sometimes cannot concentrate or experience joy. Found on http://www.orthoexperts.co.uk/solicitors/medical-glossary.html