Vulvar things Flashcards
How do you diagnose HSV, syphilis, chancroid, lymphogranuloma venereum and granuloma inguinale?
HSV: viral culture, PCR, serology
Syphilis: serology, fluorescent ab testing, darkfield microscopy
Chancroid: gram stain, culture, PCR
Lymphogranuloma venereum: culture, serology, PCR
Granuloma inguinale: giemsa/wright stain (Donovan bodies), PCR
What is differential diagnosis for genital ulcers?
HSV - most common -painful.
Syphilitic chancre: painless (Treponema pallidum)
Chancroid - painful (Haemophilus ducreyi)
Lymphogranuloma venereum (Chlamydia trachomatis)
Granuloma inguinale (Calymmatobacterium granulomatis)
Cancer
Erosive disease: lichen planus
Allergic reaction
What is Lymphogranulom venereum ?
from chlamydia trachomatis
- incubation: 1-4 wks
single painless flat pastule/vesicle
tender suppurative lymph nodes
- “groove sign”=clinical sign, double genitocrural fold
ddx: culture, PCR
Tx: Doxycycline x 21d
What is chancroid?
2/2 haemophilus ducreyi (more common in males)
-incubation 2-6 days
PAINFUL papule/pustule (1-5 of them)
- red undetermined margins, yellow/gray base
- purulent, hemorrhagic secretions
ddx: culture/gram stain (“school of fish pattern”, PCR
- Tx: Erythromycin x 7d
What is granuloma inguinale?
2/2 Calymmato-bacterium granulomatis
- seen in tropics, aka DONOVANOSIS
- incubation 8-12 wks
- painless papule
- ROLLED, ELEVATED MARINS w/ red rough base
- lymph nodes: pseudoadenopathy
- lasts weeks
- ddx: Giemsa staining W/ DONOVAN BODIES
- tx: azithro
What is toxic shock syndrome?
exotoxin release by S. Aureus. associated w/ tampons/diaphragms. rarely leads to sepsis and multi-organ failure.
Differential: gastroenteritis, PID, vaginitis, incomplete/septic abortion, infectious mononucleosis, influenza.
If presents as septic, differential is toxic shock, multi organ failure/sepsis, pyelonephritis, severe dehydration, hemolytic uremic syndrome, E. coli, septic abortion
Tx: B-lactamase resistant anti-staph agent (cephalosporin, unsays, nafcillin, oxacillin, amino glycoside)
What is the pH in patient with BV, yeast and trichomoniasis?
BV approx 5.0
Yeast < 4.5 (as is a normal pH)
Trichomonas > 5
How do you differentiate BV, yeast and trich on a wet prep?
BV clue cells, amine odor with KOH
Yeast KOH hyphae, budding yeasts
Trichomonas motile, flagellated Trichomonads parasites
How would you evaluate vaginitis on physical exam
External genitalia: erythema, irritation, lesions
Vagina: discharge (color, consistency, pH, odor), lesions
Cervix: discharge, lesions, surface abnormalities, CMT
Uterus/adnexa: tenderness, signs of PID
Abdomen: tenderness, signs of PID
Workup: wet prep, pH, GC/CT, maybe UA. consider physiologic discharge!
Differential diagnosis for vaginal discharge: vaginitis, atrophy, STI, foreign body, ulcerative lesion of vulva.
What is the CDC recommendation for outpatient management of PID?
Ceftriaxone 250mg IM + Doxycycline 100mg po bid x14 days WITH or WITHOUT Flagyl 500mg po bid
OR
Cefoxitin 2g IM and Probenecid 1g +Doxycycline 100mg po bid x14 days WITH or WITHOUT Flagyl 500mg po bid
If PCN allergic, Levaquin 500mg po qDay x 14 or Ofloxacin 400mg po bid x 14 days WITH or WITHOUT Flagyl 500mg po bid
What is HSV?
chronic lifelong infection. mostly transmitted by pts unaware they’re infected or asymptomatic during transmission.
incubation: 4-7 days after contact
lesion: solitary or multiple painful ulcers w/ clear marins
adenopathy: usually in primary outbreaks
prodrome: “flu-like” sx - myalgias, HA, low fever.
ddx: if lesions present (viral testing of lesion w/ NAAT/PCR, cultures have high false neg rates). If lesions absent, serologic antibody testing.
- virus preset in lesion only for first 2-3 days of episode.
- test all pts w/ herpes for HIV! can have more frequent/severe outbreaks
What is treatment for HSV?
1st outbreak:
- acyclovir 400mg TID x 7-10d
- valacyclovir 1000mg BID x 7-10d
famciclovir 250mg TID x 7-10d
Episodic treatment
- Acyclovir 800mg BID x5d
Valtrex 500mg BID x3d or 1000mg BID x5d
Famciclovir 1g BID x1d
Suppression for frequent recurrence (>10/yr)
- Acyclovir 400mg BID or valtrex 1000 BID qd
Pregnancy:
- valtrex 500 BID for suppression!
What is differential diagnosis for painful pustular vulvar ulcers?
- Herpes lesions
- Vulvar skin maceration from frequent pro-genital contact
- Non-infectious ulcerative disease (Behcet’s, lichen planus)
- less commonly Chancroid
- Trauma
- infected contact dermatitis.
What is differential for pre-pubertal vulvar itching?
Inflammation/infection
Trauma (suspect sexual abuse)
Foreign body
Urologic pathology
Genital tract neoplasm
skin dermatosis (atopic dermatitis, lichen sclerosis)
Eval: hx, recent UTI/diarrheal illness, concern for abuse
Exam: supine with frog-leg position or prone in knee-chest position. or EUA.
What is vaginitis?
Normal vaginal pH <4.5 in reproductive aged women. estrogen incr glycogen production (bacteria love this).
3 most common causes: BV (40%), candidiasis (30%), trich (20%). If postmenopausal, atrophic vaginitis.
What is evaluation of vaginitis?
-History: pattern, assocaited factors, use of douches, condoms, medication use
- physical exam:
- vaginal PH
- KOH and saline prep
- STI testing
- possibly UA/UCx, diabetic screening, HIV.
What is management of yeast infection?
uncomplicated: infrequent episodes, mild/mod sx, C. albicans suspected, non-immunocompromised: intra-vaginal azole or PO fluconazole
COMPLICATED (Any present): recurrent >4 episodes/yr, severe sx, non-albicans yeast suspected, DM, immunocompromised: need yeast culture!
- non-albicans less response to azoles. Rx=600mg vaginal boric acid qHSx14d
- serve sx: erosions, erythema, fissures, edema. rx=prolonged course of vaginal azalea 10-14d or 2-3 doses of diflucan q3d.
- recurrent yeast (>4/yr): diflucan 150qd x 3 then suppression 150 weekly x 6 mo. OR boric acid. eliminate dietary/hygiene causes. consider treating partner.