Vascular Disorders

Platelet function is normal

Abnormality of :

• skin
• collagen
• blood vessels

Causes :

• mucosal bleeding
• purpura
• petechia
• eccymoses
• telangiectasia

May be caused by :

• immune complex (allergic purpura) – Henoch-Schonlein purpura
• infectious agents
  • strep
  • staph
  • meningococci
  • rocky mountain spotted fever
• amylodosis
• vitamin c deficiency – scurvey
• cushing syndrome
• collagen disorders
  • osler-weber-rendu disease
  • kasabach-merritt syndrome