5 Bacterial Infections Flashcards
Caused by Mycobacterium, what is this called when on the skin?
Lupus vulgaris (TB of the skin)
What are the radiopaque spots in the rami?
Tonsillar concretions (desquamated keratin and foreign material packed into tonsillar crypts)
This child presents with a red “strawberry” tongue. What does he have?
Scarlet fever (4-5 days into the infection)
55% of the time it presents cervicofacially. Sulfur granules were recovered from this Pt. What is the diagnosis and microbiologic agent?
Dx: Actinomycosis
Bug: Actinomycoses israelii
Where else on this Pt might there be presentations like this?
Chancres are usually on the genitalia
The Pt presents with a calcified mass in their right maxillary sinus. What do you call these calcifications?
Antrolith(s)
What bacteria typically causes these honey-colored crusts?
non-bullous impetigo is typically caused by a mixture of S. aureus and S. pyogenes
This widespread rash is typical of what?
Secondary syphilis (pictures showing maculopapular rash)
What is hutchinson’s triad?
- Hutchinson’s teeth
- Ocular interstitial keratitis (shown)
- 8th nerve deafness
Superficial vesicles filled with serous fluid and eventually purulent fluid are characteristic of what? (hint: more common in infants)
Bullous Impetigo
This disease frequently begins as what? (two options)
- Measles
- NUG (which becomes necrotizing ulcerative mucositis)
This patient is presenting with hyperpyrexia, headache, dysphagia, and a sore throat. What might this be?
Tonsillitis/Pharyngitis (strep throat)
If this ferocious beast were to scratch you near the eye resulting in a conjunctival granuloma with preauricular lymphadenopathy, what would you call the manifestation?
Oculoglandular Syndrome of Parinaud
What dermatological feature might you see on this patient?
Pastia’s lines (Rash in areas of pressure and skin folds presenting as transverse red streaks)
This young African Pt had NUG prior to this development, which developed rapidly. What would your diagnosis be?
Noma
This pt’s tonsils have exudate on them and are erythematous. What are sequelae of this infection if caused by Streptococcal bacteria?
- Scarlet fever
- Rheumatic fever
- Rheumatic heart disease
- Acute glomerulonephritis
Pt sits down in your chair with this. You presume it’s enlargement of cervical lymph nodes. What is this called if caused by Mycobacterium sp.?
“Scrofula” (TB of cervical lymph nodes caused by drinking infected milk)
This girl recently lost a fight to a cat. What bacteria could cause this?
Bartonella henselae
What bacterial infection of the skin is this?
Non-bullous Impetigo
Colonization of the bug causing the sulfur granules in these enlargements can occur where in the oral cavity?
- tonsillar crypts
- plaque
- carious dentin
Pt has necrotic pharyngeal mucosal tissue caused by Corynebacterium. What is the disease?
Diphtheria
Necrosis, purulence, and hemorrhaging of the mandibular gingiva. Patient also reports she was just diagnosed with pelvic inflammatory disease yesterday by her PCP.
Gonorrhea (oral sex leads to oral presentation)
This painless ulceration seen here might be characteristic of what disease?
Syphilis (primary) (only 2% of Pts have oral presentations)
This patient also reports a history of ocular and tongue lesions.
Tertiary syphilis
What kind of leprosy causes this manifestation?
Lepromatous leprosy (aka multibacillary leprosy)
What bacteria/initial infection causes this?
Group A beta-hemolytic Streptococcal infection (pharyngitis/tonsillitis)
If these radiolucencies calcify, what are they called? What bacteria might colonize in these areas?
Calcified tonsillar concretions = tonsilloliths. Actinomyces spp. can colonize under them.
This Pt comes in complaining of tooth pain in their whole UR quadrant when they stand or sit up. Based on that and the radiograph, what do the have?
Maxillary sinusitis (right)
He may look cool, but why should you not play with him?
Armadillos can carry M. leprae, which causes Leprosy.
