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Flashcards in Bugs Deck (40):
1

primary syphilis

chancre ulcers- painless

2

secondary syphilis

snail track ulcers- mucous membranes
red body rash- soles and palms too

3

syphilis C/T

bacterial- treponema pallidum
penicillin injections

4

syphilis investigations

blood test
swab chancre and do PCR

5

lyme disease C/T

bacterial- borrelia burgdoreferi
ticks are vectors
doxycycline or amoxicillin

6

lyme disease Ix

blood test- antibody

7

lyme disease S

erythema migrans (bullseye)
heart block, nerve palsy, arthritis

8

Hansen's disease C/T

bacterial- myco. leprae

9

Hansen's disease S

tuberculoid leprosy= hypopigmentation, plaques, raised rims
transient rash, nerve involvement

10

Hansen's disease Ix

acid fast bacilli

11

Eczema herpeticum C/T

virus- herpes simplex

12

eczema herpeticum S

at damaged eczema sites
monomorphic punched out lesions

13

viral wart (bowen's)

usually genital
bowen's disease on penis from HPV type 16`

14

molluscum contagiosum S

firm, pearly, umbilicated nodules
itchy
look fluid filled
children with possible tramsitted STI

15

molluscum contagiosum C/T

virus- liquid nitrogen

16

HPV C/T

genital warts- 6/11
cervical cancer- 16/18
self limiting or topical salicylic acid

17

HPV S

young person
warts

18

Herpes Simplex C/T

virus
acyclovir

19

herpes simplex type 1

from secretions (don't need to have ulcers present)
gingivostomatitis, pre school, usually asymptomatic, lasts 1 week
recurring- painful blisters at vermillion borders
herpetic whitlow, eczema herpeticum and erythema multiforme

20

secondary herpes simplex

genital blisters from sexual contact (warts don't need to be present for it to be passed)

21

herpes simplex Ix

PCR from swabs

22

herpetic whitlow

blisters on fingers from herpes simplex

23

erythema multiforme C/T

type 4 hypersensitivity from infection
usually after HSV, then myco pneumonia
drugs- NSAIDs, penicillin etc

treat cause and supportive (antihistamine and steroids)

24

erythema multiforme S

target lesions (macules-papules-plaques) with three distinct phases
arms, palms and soles then spreads
when mucous membranes involved it becomes SJS
lasts 2-4 weeks
burning/itchy

25

erythema multiforme Ix

skin biopsy and look for cause

26

enterovirus (herpangina)

coxsackie or echovirus
blisters at back of mouth
stool sample and PCR
self limiting

27

enterovirus (hand, foot and mouth)

can be coxsackie
children and families
neuro and pulmonary oedema

28

Orf

pox virus from sheep
firm nodule on hands- painful, red, itchy
can get systemic flu like symptoms
self limiting

29

erythema infectiosum (slapped cheek disease) C/T

erythrovirus or parvovirus (rubella)

30

erythema infectiosum (slapped cheek disease) S

slapped cheek
lacy macular body rash
polyarthritis in small joints as rash fades

31

erythema infectiosum (slapped cheek disease) Ix

parvovirus IgM test

32

erythema infectiosum (slapped cheek disease) Ix

parvovirus IgM test

33

varicella zoster virus

causes chicken pox and shingles (varicella zoster)

34

chickenpox

varicella zoster first exposure
can get flu like symptoms (rash, fever)
macules, papules, vesicles, scabs, itchy
air transmission
complications- pneumonitis, bac inf, encephalitis

35

neonatal chickenpox

if mother gets chicken pox
susceptible mothers get immunoglobulins

36

shingles/ varicella zoster

reactivation of chickenpox
dermatome tingling/ pain (nose involved- hutcheson's sign)
complications- post hepatic neuralgia; keratitis (ophthalmic zoster); ramsay hunt syndrome
start acyclovir

HIV- TWO DERMATOMES

37

lice

pediculus capitus; pediculus corporis; phthirus pubis
intense itch and excoriations
malathion

38

scabies

sarcoptes scabei
intense itch worse at night, rash in finger webs, genitals and wrists
chronic crusted- Norwegian scabies
Ix- skin scrape/ get mite and microscopy
T- malathion lotion or permethrin

39

acne C

P. acnes in pores

40

rosacea C

demodex mites in ducts