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Dermatology
Bites and Stings
Built from Dermatology, 5th Edition
What’s inside
8 sections · 141 slides
Overview
- What this chapter covers
Insects
Bites and stings from the class Insecta, and the skin reactions they cause
- What counts as an insect bite reaction
- How the skin reacts to a bite
- Typical insect bite reaction
- Reading the spectrum of bite reactions
- Spectrum of insect bite reactions
- Chronic and unusual bite reactions
- Bee and wasp stings
- What a bite looks like under the microscope
- Insect bite reaction with Langerhans cell hyperplasia
- Telling a bite reaction from other rashes
- Treating the itch and inflammation
- When topical treatment is not enough
- The many faces of an arthropod bite
- Preventing bites: choosing a repellent
- Commonly used insect repellents
- Commonly used insect repellents (continued)
- Commonly used insect repellents (continued)
- DEET: dosing and limits
- Alternatives to DEET
- Being ready for a sting emergency
- Venom immunotherapy
- Fire ants: introduction
- Fire ant sting mechanism and pattern
- Recognizing fire ant sting reactions
- Sterile pustules at fire ant sting sites
- Managing fire ant allergy and infestations
- Bedbugs (Cimex lectularius)
- Bedbugs: a worldwide resurgence
- Why bedbug bites itch
- Recognizing bedbug bite reactions
- Do bedbugs spread disease?
- Evaluating and managing bedbug infestations
- Getting rid of bedbugs
- Triatomine (kissing) bugs
- Kissing bug bites and Chagas disease
- Blister beetles: cantharidin
- Blister beetle reactions
- Rove beetles and pederin dermatitis
- Rove beetle dermatitis in detail
- Paederus dermatitis and the rove beetle
- Carpet beetle dermatitis
- Pulex irritans, the human flea
- Fleas: an unfussy pest
- Anatomic features of common flea types
- Flea bite reactions
- Fleas as disease vectors
- Treating and preventing flea infestation
- Lepidopterism: caterpillar and moth reactions
- Skin and systemic reactions to caterpillars
- Train-track hemorrhage from puss caterpillar contact
- Cutaneous and systemic reactions in lepidopterism
- Cutaneous and systemic reactions in lepidopterism (continued)
- Cutaneous and systemic reactions in lepidopterism (continued)
- Ocular injury and ingestion in children
Arachnids
Ticks, mites, spiders, and scorpions - vectors, venoms, and clinical patterns
- Tick bites: how ticks feed and spread disease
- A hard tick's life cycle
- Recognizing a tick bite reaction
- Hard ticks versus soft ticks
- Treating tick bite reactions and tick-borne disease
- Reducing tick exposure in the environment
- Tick control measures
- Repelling ticks with permethrin
- Removing an attached tick
- Should antibiotics follow every tick bite?
- 3.2%
- The lone star tick (Amblyomma americanum)
- Amblyomma tick bites: sites and diseases
- From tick bite to red meat allergy
- American dog tick and Rocky Mountain wood tick
- Dermacentor ticks and Rocky Mountain spotted fever
- Why RMSF treatment cannot wait
- The brown dog tick (Rhipicephalus)
- The blacklegged (deer) tick
- The reaction to an attached Ixodes tick
- Emerging Ixodes-borne infections
- Where each major tick prefers to attach
- Mites: small arachnids, huge diversity
- Mite families
- Mites of medical importance
- Mites of medical importance (continued)
- Mite bite reactions
- Where mite bites come from
- Mite bites after contact with hay bales
- Mites often get misdiagnosed
- Confirming a mite exposure
- Preparing collected mites for microscopic exam
- Treating mite bite reactions
- Chiggers
- Cheyletiella mites
- Cheyletiella dermatitis
- Spider bites: an overview
- Spiders that cause significant reactions
- Widow spiders (Latrodectus)
- How black widow venom works
- Widow spider bite: what to expect
- Treating a widow spider bite
- Brown recluse spider (Loxosceles reclusa)
- Loxosceles spiders: identification and range
- US distribution of dermonecrosis-causing spiders
- How brown recluse venom damages skin
- The dermonecrotic bite
- Loxosceles bite: what the tissue shows
- Treating a Loxosceles bite
- Funnel-web spiders
- Tarantulas
- Scorpions
- Selected clinically important scorpion species
- Scorpion sting: clinical picture
- Treating a scorpion sting
Centipedes and Millipedes
A biting predator and a non-biting chemical irritant, easily confused with a snake bite
- Centipedes and millipedes compared
- Reactions and treatment
Snake Bites
Envenomation from outdoor activity and occupational exposure
- Snake bites: who is affected, and how they present
- Treating a snake bite
Dog and Cat Bites
Common household injuries with a real infection risk
- Dog and cat bites: patterns and rabies risk
- Germs found in bite wounds
- Pathogens in human and animal bite wounds
- Treating a dog or cat bite
Leeches
Freshwater bites that cause bleeding, plus a modern medical use
- Leech bites and leech therapy
Marine Injuries
Venomous and infectious hazards from the ocean and its creatures
- Infection risk after a marine injury
- How stinging marine animals injure the skin
- Sea urchin injuries
- Seabather's eruption
- Jellyfish stings
- The Portuguese man o' war
- Sponges, corals, and shellfish
- Stingray injuries
- What marine stings look like under the microscope
- First aid and treatment for marine stings
- Key take-home points, part 1
- Key take-home points, part 2
- References
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- References (continued)
- Dermatology, 5th Edition (2-Volume Set)