STOMATITIS Flashcards
6 types of Bacterial infections
- Impetigo
- Tonsillitis and pharyngitis
- Syphilis
- Tuberculosis
- Actinomycosis- Bacterial infection
- Necrotizing Ulcerative Gingivitis
2 types of Fungal Infections
- Candida albicans
2. Deep fungal infections
6 types of Candida albicans
- seudomembranous candidosis (candidiasis)
- Erythematous “acute atrophic” candidosis
- Chronic atrophic candidosis
- Chronic hyperplastic candidosis
- Angular cheilitis
- Median rhomboid glossitis “chronic atrophic candidosis”
types of Viral infection
- Human papilloma viruses (HPVs): DNA viruses
- Human herpes viruses (HHVs): DNA viruses
- Coxsackie A viruses
- Paramyxoviruses
bacteria cause infection in impetigo
Streptococcus pyogenes and Staphylococcus aureus
where does impetigo infect and who? what causes it?
it spread how?
can it be treated?
face and extermitiesFacial lesions usually develop around the nose and mouth
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Poor hygiene, crowded living conditions, hot & humid climate Previous trauma: abrasions, insect bites, dematitis
—-
Spread by skin contact
Vesicles that rupture, leaving light brown (amber) colored crusts (“Cornflakes glued to the surface”)
—
Unlike HSV, lesions persist until treated
antibiotic to treat impetigo
Mupirocin topical Cephalexin, dicloxacillin
what organism causes Tonsillitis and pharyngitis?
age it affects?
other name?
Children aged 5 - 15 years
——–
“Strep throat”: sore throat, headache, fever, tonsillar
sign and symptoms of Tonsillitis and pharyngitis?
how does it spread?
Culture and treat with antibiotics: penicillin, amoxicillin, cephalosporin
Complications of Strep throat
Scarlet fever
Rheumatic fever
Glomerulonephpritis
organism causes Scarlet fever ---- age? ---- sign and symptoms ---- how does it affect body?
Children aged 3-12 years
—-
Skin rash, fever, palatal petechiae, “strawberry tongue”
—-
Organisms elaborate an erythrogenic toxin that attacks blood vessels
how does Rheumatic fever affect body?
Rheumatic fever
organism causes syphilis --------- how does it spread ----- what is the incident( in what population)
Direct contact with mucosal surfaces (e.g. sexual contact, mother to fetus)
————-
Increased incidence in African Americans, prostitutes, and drug abusers
50-100x higher prevalence in the United States compared with other industrialized countries
what is chancre? syphilis
when does primary infection occur?
is it infectious
painless ulcer at site of inoculation External genitalia, anus, lip ------- 3-90 days after initial exposure Regional lymphadenopathy TPHA + FTA-ABS ------- Highly infectious
when does secondary infection occur?
what type of ulcer occur? what are signs and symptoms?
is it infectious?
4-10 weeks after initial infection ------- Mucous patches “Snail track” ulcers Condylomata lata (papillomas), maculopapular cutaneous rash Lymphadenopathy, sore throat, fever ------- Highly infectious
when does latent syphilis show symptoms
1-30 years
what percentage of infected population with syphilis will have 3 syphilis?
what type of necrosis occur?
what type of lesion will occur?where they occur? disease associated with it?
Gumma – unique type of necrosis
———
Indurated, nodular or ulcerated lesion Intraorally, usually affects palate (perforation) or
tongue
——
Glossitis, atrophy and loss of dorsal tongue papillae (Luetic glossitis)
Syphilitic leukoplakia
Cardiovascular system and CNS involvement
signs and symptoms of congenital syphilis
Frontal bossing, underdeveloped Mx, high arched palate, saddle nose deformity
Hutchinson’s triad
Interstitial keratitis of cornea
VIIIth nerve deafness
Dental abnormalities:
Screwdriver-shaped “Hutchinson’s incisors” “Mulberry molars” bumps on occlusal surface
how to treat it?
Antibiotics: penicillin
what are dental abnormalities associated with congenital syphilis
- Screwdriver-shaped “Hutchinson’s incisors”
2. “Mulberry molars” bumps on occlusal surface
organism associated with Tuberculosis?
where it occurs?
how does TB becomes an active disease
Primary infection of lungs
—–
Immunodeficiency (old age, poverty, HIV/AIDS) contributes to progression from infection to active dis
clinical features of TB
Clinical Features: Fever, night sweats, fatigue, weight loss, productive cough, hemoptysis
Lymph node involvement (“scrofula”)
Skin: “Lupus vulgaris”
Oral: chronic painless ulceration usually involving tongue or palate, atypical periodontal disease
Histology and biopsy of tissues culture
Biopsy shows granulomas with central areas of necrosis AFB- Acid fast bacillus stain shows typical red bacilli
PCR (polymerase chain reaction)
PPD skin test and chest radiograph
Isoniazid (INH) and rifampin
how does Actinomycosis- Bacterial infection occur?
—-
where does most of the cases occur by this infection orally?
History of surgery or trauma
—–
55% of cases occur in cervicofacial areas
Injury, periodontal pocket, nonvital tooth, extraction
socket, infected tonsi
what are the clinical features of Actinomycosis- Bacterial infection
Abscesses and draining sinus tracts
Colonies of organisms are yellow “sulphur granules”
how to treat actinomycosis?
Long-term high doses of antibiotics
Can range from 6 weeks to 12 months, depending on
extent of infection.
Localized acute infections (e.g. periapical or pericoronal actinomycosis) may be treated more conservatively
Removal of infected tissue usually produces sufficient aeration that antibiotics aren’t needed (follow-up)
other name for Necrotizing Ulcerative Gingivitis? ---- what organism causes it? --- what causes it? ----- what age?
Bacillus fusiformis and Borrelia vincetii
—–
Frequently occurs in situations of stress, immunodeficiency or malnourishment
——–
Young and middle-aged adults
dental association with NUG, ANUG
Interdental papillae are highly inflamed and hemorrhagic Papillae are blunted with areas of “punched-out” necrosis that are covered with a gray pseudomembrane
Is NUG associated with odor?
Fetid odor and intense pain
how to treat NUG
ebridement by scaling or curettage
Chlorhexidine rinses
Systemic antibiotics if fever or lymphadenopathy is present
what is the most common oral infection
Candida albicans
what organism causes Candida albicans
Dimorphism: yeast form and pathogenic hyphal form
Organism of low virulence in healthy, need “opportunity” for growth
Predisposing conditions like?
Antibiotic therapy
Cancer chemotherapy Corticosteroid therapy Dentures
Diabetes mellitus Pregnancy
Iron deficiency Newborns
Advanced malignancy Xerostomia
Other immunocompromised states (HIV/AIDS)
Overgrowth of Candida albicans, ————
can culture it in up to —–% of patients but with——-, probably present in all patients
part of the normal oral flora ---- 50% -------- PCR
sign and symptoms associated with a. Pseudomembranous candidosis (candidiasis)
White material that can be wiped off: tangled hyphae, yeasts, dead epithelial cells, & debris
Normal or erythematous mucosa underneath Symptomatic, burning sensation to pain
Metallic taste
what candida albican organism causes metallic taste
Pseudomembranous candidosis (candidiasis)
symtpms and signs of b. Erythematous “acute atrophic” candidosis
ainful, burning sensation Often associated with antibiotics: “antibiotic sore mouth” Usually affects gingiva Loss of filiform papillae on tongu
what organism is associated with antibiotic sore mouth
Erythematous “acute atrophic” candidosis
this organism of candida causes Loss of filiform papillae on tongue
Erythematous “acute atrophic” candidosis
what organism causes Denture stomatitis” “denture sore mouth
chronic atrophic candidosis
sign and symptoms of Chronic atrophic candidosis
Denture stomatitis” “denture sore mouth” Erythematous change limited to mucosa covered by denture and confined to denture bearing tissues
Only Mx and in patients who wear dentures 24 hrs/day Asymptomatic to symptom
characteristics of Chronic hyperplastic candidosis
“Candidal leukoplakia” Indistinguishable from leukoplakia
White lesion that does not wipe off
Which came first - the candida or the leukoplakia? Biopsy if no resolution with anti fungal therapy
what causes angular chelties?
Candida about 90%, rest caused by Strep or Staph-
sign and symptoms of Angular cheilitis
Erythema or fissuring at labial commissures
Unilat or bilat
Predisposing factors: reduced vertical dimension and accentuated folds at the corners of the mouth
sign and symptoms of f. Median rhomboid glossitis “chronic atrophic candidosis”
ho“Central papillary atrophy”
Well-defined, erythematous, rhomboid (diamond- shaped) area at midline of posterior dorsal tongue Often asymptomatic
how does Median rhomboid glossitis “chronic atrophic candidosis diagnose
Diagnosis by clinical features, mucosal smear and tissue culture
Exfoliative cytology: PAS stain
how to treat Median rhomboid glossitis “chronic atrophic candidosis?
Oral or systemic antifungal therapy
Nystatin (Mycostatin®)
Oral suspension: 1 tsp. 5x daily for 2 wks.
Clotrimazole (Mycelex®)
Troches: 10 mg 5x daily for 7-10 days
The “azoles”: ketoconazole and fluconazole are absorbed systemically
Fluconazole (Diflucan®): 2 tabs. (200mg) Day 1 and then 1 tab. (100mg) daily for 2 wks.
what puts are susceptible to it?
ncreased susceptibility to infection and recurrence in
immunocompromised (HIV+)
examples
Chronic, nonhealing intraoral ulcers which can mimic
squamous cell carcinoma
—–
Histoplasmosis
Coccidiomycosis
Blastomycosis Cryptococcosis Aspergillosis
how to diagnose and treat deep fungal infection
Biopsy with tissue staining and culture Systemic antifungal medications
organisms associated with Subcutaneous fungal &Opportunistic fungal infectionsinfections
ubcutaneous fungal infections Sporotrichosis
Opportunistic fungal infections
Zygomycosis (mucormycosis)
Often in immunosuppressed/ diabetics
types of Human papilloma viruses (HPVs): DNA viruses
- Papilloma (usually HPV subtypes 6 and 11)
- Verruca vulgaris (HPV subtypes 2, 4, 6, 40)
- Condyloma acuminatum (HPV subtypes 2, 6, 11, 53, 54, 16, 18)
- Focal epithelial hyperplasia (HPV subtypes 13 and 32)
- HPV and cancer. Only some types, esp 16, 18, 6, 11, 30s, 50s
Human herpes viruses (HHVs): DNA viruses
- Herpes simplex viruses (HHV-1 and HHV-2 / HSV-1 and HSV-2)
- Varicella-zoster virus (VZV / HHV-3)
- Epstein-Barr virus (EBV / HHV-4)
- Cytomegalovirus (HHV-5)
- HHV-8
how many types?
most adults have at least?
is it hard to distinguish between different kinds of HPV?
Over 100 types
Most adults have buccal epithelial cells containing at least one type, tends to “clear” in health patients
Yes, Can be difficult to distinguish between the various lesions of HPV
Papilloma (usually HPV subtypes 6 and 11) what age? where does it occur? what are clinical presentation what cancer does this
Age 30 to 50 years
Tongue, lips,↑ soft palate
17
White/red/normal color “cauliflower” shaped exophytic nodule, sessile or pedunculated
Usuallysmall, but can be as large as 3 cm
“common wart” is caused by what virus?
Verruca vulgaris (HPV subtypes 2, 4, 6, 40)
Verruca vulgaris (HPV subtypes 2, 4, 6, 40) affects what age group? where does it occur? clinical presentation ?
Children
Usually on skin of hands
Oral mucosa: vermillion border, labial mucosa, anterior tongue
Pink/white nodule with rough, pebbly surface
Usually less than 5 mm
histological feature of Verruca vulgaris (HPV subtypes 2, 4, 6, 40)
Koilocytes (enlarged cells with cytoplasmic clearing)
Large keratohyaline granules
Contagious, can spread to other parts of skin or mucosa by auto inoculation
treatment of Verruca vulgaris (HPV subtypes 2, 4, 6, 40)
liquid nitrogen, cryotherapy/surgical excision/salicylic acid
Condyloma acuminatum (HPV subtypes 2, 6, 11, 53, 54, 16, 18) affects what age group? where does it affect? where does it affect on oral mucosa
Teenagers and young adults
Affects oral mucosa, larynx, genitalia
Oral mucosa: labial mucosa, soft palate, lingual frenum
how does Condyloma acuminatum (HPV subtypes 2, 6, 11, 53, 54, 16, 18) transmitt?
Transmitted through sexual transmission or self- inoculation
incubation of 1 to 3 months from time of sexual contact
when does the risk of malignancy increases?
Pink to white exophytic mass with short, blunted surface projections
1 to 1.5 cm, can be as large as 3 cm
Often occur in clusters and not quite as exophytic and papillary as papillomas or vurruca
——
Anogenital condylomata infected with HPV-16 and HPV- 18 have been associated with increased risk of malignant transformation
what virus causes the “Heck’s Disease”
Focal epithelial hyperplasia (HPV subtypes 13 and 32)
what age group and what population is affected by this virus
Most common in children often malnourished and
In poor living conditions
1st described in Native Americans and Eskimos
where does this virus occur in the mouth as what cells?
Labial, buccal, and lingual mucosa
Koilocytes and mitosoid cells
Histology of Focal epithelial hyperplasia (HPV subtypes 13 and 32)
HPV identified by DNA in situ hybridization, immunohistochemical analysis, and PCR
what types of HPV viruses cause cervical and oropharyngeal cancer
16, 18, 6, 11, 30s, 50s
25 yrs ago, 20-25% of throat cancer was HPV, today 75%
How does HHV virus survive in human body
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