Infective Stomatitis - Viral Flashcards
Human papilloma viruses (HPV) are what type of viruses?
DNA
- over 100 types
Describe the presentation of a Papilloma
Virus-induced benign proliferation of stratified squamous epithelium.
- White/red/normal color “cauliflower” shaped exophytic nodule, sessile or pedunculated.
- Usually small, but can be as large as 3 cm
Papilloma is usually what HPV subtypes?
6 & 11
What age group does a Papilloma usually target
Age 30 to 50 years
What location is Papilloma commonly found
Tongue, lips,»_space; soft palate
Verruca vulgaris is usually what HPV subtypes
*2, 4, 6, 40
Describe the presentation of Verruca vulgaris
“common wart”
Pink/white nodule with rough, pebbly surface
Usually less than 5mm
What age group does Verruca vulgaris usually target
Children
What location is Verruca vulgaris commonly found
Usually on skin of hands
- Oral mucosa: vermillion border, labial mucosa, anterior tongue
Histologic features of verruca vulgaris
Well defined papillary growth with KOILOCYTES (enlarged cells with cytoplasmic clearing)
- Large keratohyaline granules
How does Verruca vulgaris spread?
Contagious
Can spread to other parts of skin or mucosa by autoinoculation
Treatment of Verruca vulgaris
Liquid nitrogen
cryotherapy/surgical excision/salicylic acid
Condyloma acuminatum is usually what HPV subtypes
2, *6, *11, 53, 54, 16, 18
What age does Condyloma acuminatum usually target
Teenagers and young adults
What location is Condyloma acuminatum commonly found?
Affects oral mucosa, larynx, genitalia
Oral mucosa: labial mucosa, soft palate, lingual frenum
How is Condyloma acuminatum spread?
Transmitted through sexual transmission or self-inoculation
- Incubation of 1 to 3 months from time of sexual contact
How does Condyloma acuminatum present?
Pink to white exophytic mass with short, blunted surface projections.
- 1 to 1.5 cm, can be as large as 3 cm.
- Often occurs in clusters and not quite as exophytic and papillary as papillomas or vurruca
Focal epithelial hyperplasia is usually what HPV subtypes?
13 and 32
- Also known as Heck’s disease
How does focal epithelial hyperplasia present?
Multiple soft, flattened papules clustered together
What age group is Focal epithelial hyperplasia most common?
In children often malnourished and in poor living conditions
- 1st described in Native Americans and Eskimos
Describe the location where Focal epithelial hyperplasia is most commonly found
Labial, buccal and lingual mucosa
Histologic features of Focal epithelial hyperplasia
Koilocytes and mitosoid cells
How is HPV identified?
Biopsy & Histologic examination
- HPV identified by DNA in situ hybridization, immunohistochemical analysis and PCR
Describe the interaction between HPV and cancer
Only some types, especially *16, *18, 6, 11, 30s, 50s
- causes cervical cancer and most oropharyngeal cancer
- 25 years ago, 20-25% of throat cancer was HPV, today it’s 75%
What type of virus is Human Herpes viruses
DNA viruses
In general, describe the interaction and life cycle of HHV in humans
Humans are natural reservoirs for the virus
- All HHVs can reside throughout the life of an infected host and are characterized by dormancy or latency where they reside within the host with the potential to be reactivated and produce recurrent patterns of disease
Describe general features of Acute herpetic gingivostomatitis
- more than 90% are the result of HSV-1
- Oral disease caused by initial infection of HSV
- Very acute in onset
What age group does Acute herpetic gingivostomatitis target
Usually in children 6 months to 5 years old, but can occur in adults
Symtpoms and signs of Acute herpetic gingivostomatitis
- Fever**, lymphadenopathy, nausea, irritability
- Painful, erythematous gingiva and tiny (1-3 mm) coalescing vesicles progress to widespread, multiple sharply marinated ulcers of oral mucosa and skin around mouth & lips
In adults, how might acute herpetic gingivostomatitis present?
May present as pharyngotonsillitis
General features of Recurrent herpes simplex infection
Occurs in 15-45% of the U.S. population
- Virus is neurotrophic and persists in a latent state in the trigeminal ganglion
What stimuli trigger viral replication and lead to recurrent clinical lesions of HSV
Old age UV light Emotional stress pregnancy allergy trauma illness dental therapy
Symptoms of Recurrent herpes simplex lesions
Prodromal symptoms of pain, burning, or tingling
- HERPES labialis –> “cold sore” or “fever blister”
Where is Herpes labialis commonly found?
Junction of vermillion and skin, NOT on mucosa (aphthae)
Intraoral: limited to keratinized mucosa that is bound to bone –> hard palate and gingiva
How does herpes labialis or recurrent herpes present?
Tiny vesicles or ulcers that coalesce
How is HSV (acute or recurrent) diagnosed?
Usually based on clinical findings
- Cytologic smear and/or tissue biopsy
- Serologic tests for HSV antibodies are positive 4-8 days after initial exposure
***At any time, 5-30% of your patients will asymptomatically excrete and will have HSV DNA in their saliva
Yep. Learn that statement. It was in bold
In general, how are acute or recurrent herpes lesions treated?
Topical and systemic antiviral medications
- effective when administered early prodrome period in primary or recurrent infection
1. Acyclovir (Zovirax) - 800 mg tablet every 4 hours orally for 7-10 days
- 5% ointment applied to affected areas topically with a finger cot q4h
- Or pencicylovir topical
2. Famciclovir (Famvir) - single 1500 mg dose or single-day (750 mg 2x for one day) dose
3. Valacyclovir (Valtrex) - 2g (four 500 mg tablets) q12h for one day
Varicella-Zoster virus (VZV/HHV-3) affects what age group?
Usually children 5-9 years of age
- Highly contagious
- 10-21 day incubation
Clinical presentation of VZV or chickenpox
Headache, fever
- Erythema –> vesicle –> pustule –> hardened crust on skin and mucous membranes
Locations that VZV is normally found
Skin: extremities, face, trunk
Perioral & oral lesions: vermillion border of lips, palate and buccal mucosa
Tx of VZV
Symptomatic
Recovery in 2 to 3 weeks
VZV vaccine
Describe Herpes Zoster
Shingles –> reactivation of VZV
- VZV may lie dormant in sensory neural ganglia after initial chickenpox infection
- Herpes zoster occurs if the virus becomes reactivated
Herpes Zoster is usually found in what age group?
Adults
Predisposing factors and clinical presentation of Herpes Zoster?
PD- Immunosuppression, treatment with cytotoxic drugs, radiation, malignancy, old age, alcohol abuse, dental treatment
Presentation: can be a single occurrence or multiple
- Prodromal symptoms: intense pain, fever malaise, headache
- Unilateral painful eruption of vesicles along the distribution of a sensory nerve classically stops at the midline
Where do Herpes Zoster oral lesions present?
Occur if trigeminal nerve is involved and lesions may be present on the the movable or bound mucosa
Describe both postherpetic neuralgia and Ramsay Hunt Syndrome
Postherpetic neuralgia: chronic infection, may take months to resolve
Ramsay Hunt Syndrome: Infection of external auditory canal with involvement of the ipsilateral facial and auditory nerves producing facial paralysis, hearing deficits and vertigo
Eptsein-Barr virus is also known as:
Infectious mononucleosis or “kissing disease”
How is Epstein-Barr virus transmitted?
Through close contact or saliva
What age group is HHV-4 or Epstein Barr virus most commonly found in?
Late adolescents/ young adults in developed countries
Symptoms of Epstein-Barr virus
Sore throat, fever, lymphadenopathy, tonsillitis, fatigue, enlarged spleen.
- Petechiae on hard/soft palate as prodrome
Treatment of Epstein-Barr virus
Self-limiting in 4 to 6 weeks, treatment is symptomatic
Describe Hairy Leukoplakia
Corrugated white lesion, usually on lateral border of tongue
- Cannot be wiped off!
- Often associated with candidal infection
- EBV can be identified by in situ hybridization, pCR, immunohistochemistry and is the cause
- Most commonly occurs in HIV+ patients, but can occur in others
What other diseases may be associated with EBV
Neoplasms, Burkitt’s lymphoma and other lymphomas, Nasopharyngeal carcinoma
What patients is Cytomegalovirus most commonly found
Usually affects newborns and immunosuppressed adults
- Common in AIDS patients
How is CMG trasmitted?
through exchange of bodily fluids
Oral lesions of CMG
Chronic ulceration, affects endothelial cells and blood flow
- Can reside latently in salivary gland cells
- Infected cells show “owl eye” appearance
Systemic antiviral treatment is necessary in immunosupppressed individuals.
HHV-8 presentation
Causative virus in Kaposi’s sarcoma
- Reddish-purple flat or raised lesions
- Most cases are associated with AIDS
Oral presentation of HHV-8
most commonly on palate, gingiva and tongue
What diseases are associated with Coxsackie A viruses?
Herpangina
Hand-foot-and-mouth disease
Acute lymphonodular pharyngitis
Name the Paramyxoviruses
Measles (Rubeola)
Mumps
What is the hallmark of measles
Koplik’s spots - may be an early intraoral manifestation
- small, red patches with white, necrotic centers