PathologyLesson 2 of 4 in the course Skin and Eye Infections

Viral Skin Lesions, Childhood Rashes, and Eye Infections

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

Save course
Lesson progress
0 / 5

Your progress is kept in this browser only.Sign up to save it

Summary

This lesson introduces two common viral infections that affect the skin: human papillomavirus (HPV) infections that cause warts, and herpes simplex virus type 1 (HSV-1) infections that commonly cause cold sores. Understanding their appearances, transmission, and management helps explain how different viruses produce distinct skin lesions.

Papillomas, commonly called warts, are skin growths caused by human papillomavirus. Many HPV types exist, and different types can produce different wart appearances. Warts are commonly transmitted through direct contact. HPV may enter through small breaks in the skin.

All flashcards

Papilloma
A wart, or skin growth, caused by human papillomavirus (HPV).
Roseola
A childhood illness usually caused by HHV-6; its rash commonly appears after a high fever subsides.
Fifth disease
An infection caused by parvovirus B19, often marked by a slapped-cheek rash followed by a lacy rash.
Viral conjunctivitis
Inflammation of the conjunctiva, commonly associated with watery discharge and often caused by adenoviruses.
Herpes keratitis
HSV infection affecting the conjunctiva and cornea; corneal lesions can threaten vision.

Quiz questions

  1. Which virus causes fifth disease, also known as erythema infectiosum?Answer: Parvovirus B19.
  2. When does the rash of roseola commonly appear in relation to the fever?Answer: After the fever subsides, often about three to five days later.
  3. Compared with bacterial conjunctivitis, what kind of discharge is more typical of viral conjunctivitis?Answer: Watery discharge.
  4. What can confirm HSV-1 when herpes keratitis is suspected?Answer: Laboratory testing.
  5. What is a key limitation of antiviral medicines used for HSV-1?Answer: They can reduce symptoms but do not eliminate the virus from the body.

Based on Microbiology by Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

More in Pathology

All Pathology lessons
PathologyPathogenesis and Clinical Features of Major Bacterial Gastrointestinal Diseases5 flashcards · 5 quiz questions · 4 gamesPlay free →PathologyTransmission and Tissue Effects of Major Parasitic Infections5 flashcards · 5 quiz questions · 4 gamesPlay free →PathologySkin Barriers, Skin Microbiota, and Eye Defenses and Inflammation5 flashcards · 5 quiz questions · 4 gamesPlay free →PathologyReproductive-System Viruses: HSV, HPV, and Surveillance5 flashcards · 5 quiz questions · 4 gamesPlay free →PathologyProtozoan Gastrointestinal Infections: Giardia, Cryptosporidium, Entamoeba, and Cyclospora5 flashcards · 5 quiz questions · 4 gamesPlay free →PathologyBacterial Respiratory Infections: Pathogens, Mechanisms, and Clinical Features5 flashcards · 5 quiz questions · 4 gamesPlay free →