Chapter 5 Bacterial infections Lecture #2 Flashcards
What is a hole in the palate caused by?
- Gumma (tertiary syphilis) (its a type of necrosis)
- Cocaine
- Natural killer T cell lymphoma
- Deep fungal infections
What is hutchinsons triad?
- Hutchinson’s incisors
- Ocular interstitial keratitis
- 8th nerve deafness
What is a chancre?
-Primary syphilis (painless ulceration/sight of inoculation)
What is hutchison’s triad associated with?
-Congenital syphilis
What bug causes gonorrhea?
-Neisseria gonnorhoeae
What is the most common reportable infectious disease in the U.S.?
-Gonorrhea
What is TB of the skin known as?
-Lupus vulgaris
What is scrofula?
-Form of myobacterial infections caused by drinking contaminated milk (appears as enlarged cervical lymph node)
T/F Oral manifestations of TB ulcers are painless
True
What is the histologic clue to run a TB test?
-Caseating granulomatous inflammation
If your have oral TB do you have disseminated TB?
-Yes
What are the two areas in the in the US that you find leprosy?
- Louisiana
- Texas
What is the natural host for mycobacterium leprae?
-9 banded armadillo
What are some features of someone who has leprosy?
- Leonine facies (facial skin enlargements)
- Pathognomonic (collapse of bridge of nose)
What is a patient at risk of getting post measles?
-NOMA
What precedes development of NOMA?
-Measles
What does NOMA begin as?
-NUG
What is NOMA?
-Zones of necrosis that develop in the gingiva and then spread (usually unilateral)
How do you treat NOMA?
- Debridement of gross necrotic areas
- If untreated it can be deadly
What bug causes Actinomycosis?
-Actinomyces israelii
Where do you see Actinomycosis?
-Most in the cervicofacial region
What is the treatment for actinomycosis?
-Long-term high dose antibiotics
What are sulfur granules assocaited with?
-Actinomyces
What bug causes Cat-Scratch disease?
-Bartonella henselae
Where does cat-scratch disease begin?
-Skin then spreads to adjacent lymph nodes
What is the most common cause of chronic regional lymphadenopathy in children?
-Cat-scratch disease
How do you diagnose cat scratch disease?
-Serologic tests
What are the most common predisposing factors of sinusitis?
- Allergic rhinitis
- Upper respiratory tract viral infection
In chronic sinusitis calcification can occur and is known as what?
-Antrolith
If a person comes in with a toothache that is worse when they are upright but goes away when they are laying down what should you think?
-Sinusitis
What is the radiographic appearance of sinusitis?
-Cloudy with increased density
