Herpes zoster

This presentation done by 5th medical student
Any mistakes "if there" is from the sources that were written at the end.

1. Herpes zoster Name: Lamyaa Anwar AlGhafli  

2. Objectives Definition Etiology Clinical pictures Is shingles contagious ? other conditions should be consider Deferential diagnosis Diagnosis and investigations Prognosis Complications Treatment Prevention

3. Definition Herpes zoster: Also called shingles, zona, and zoster. The culprit is the varicella-zoster virus. Primary infection with this virus causes chickenpox (varicella). At this time the virus infects nerves (namely, the dorsal root ganglia) where it remains latent for years

4. Etiology

5. Clinical pictures

6. Cont.

7. Is shingles contagious?

8. In diagnosis, other conditions should be consider : Cholecystitis and biliary colic Conjunctivitis Renal calculi Atopic dermatitis Atypical measles Angina Eczema Abscess Syphilis Back pain

9. Deferential diagnosis Chickenpox Contact Dermatitis, Allergic Contact Dermatitis, Irritant Cowpox Infection Herpes Simplex Insect Bites

10. Diagnosis and investigations Diagnosis based primarily on the history and physical findings—specifically, the characteristic location and appearance of the skin eruption in association with localized pain . Tests are rarely needed, but may include taking a skin sample to see if the skin is infected with the virus . Blood tests may show an increase in white blood cells and antibodies to the chickenpox virus. But the tests cannot confirm that is shingles .

11. Prognosis Herpes zoster usually clears in 2 to 3 weeks and rarely returns. If the virus affects the motor nerves , you may have temporary or permanent weakness or paralysis . Sometimes the pain may last from months to years. This pain is called postherpetic neuralgia . It occurs when the nerves have been damaged after an outbreak of shingles. Pain ranges from mild to very severe. Postherpetic neuralgia is more likely to occur in persons over age 60. 

12. Complications Postherpetic neuralgia (PHN ) Skin infection Eye problems Weakness other rare complications

13. Treatment Two main aims of treating shingles are : To ease any pain and discomfort during the episode of shingles . To prevent, as much as possible, PHN from developing.

14. Cont. General measures Antiepliptic Antiviral medicines Steroid medication

15. Prevention Two vaccines may help prevent shingles. Chickenpox vaccine Shingles vaccine

16. Sources http:// emedicine.medscape.com http:// www.mayoclinic.org http:// www.patient.co.uk http:// www.nlm.nih.gov/medlineplus http:// www.medicinenet.com

17. http:// www.youtube.com/watch?v=yd5n7P9xnJQ

18. Any Questions