Lymphadenopathy/itis causing Microbes

Question 1

Yersinia Enterocolitica

Answer 1

orally Ingested; penetrates intestinal mucosa; GNR; Facultative intracellular; survives in Macs; Generalized lymphadenopathy (mesenteric);

Question 2

Staph. Aureus

Answer 2

Autoinfection (from skin, nares) at wounds; GPC; direct infection of LN, Node will be large warm tender w/ surrounding edema/erythema

Question 3

Strep Pyogenes

Answer 3

Human throat, skin (can infect wound); GPC; direct infection of LN; similar LN symptoms to s. aureus

Question 4

Mycobacterium Tuberculosis

Answer 4

Acid-Fast Bacillus; spread by aerosols/inhalation ; facultative intracellular pathogen; survives in macs (disseminates); lymphadenitis

Question 5

Cytomegalovirus

Answer 5

human Herpes Virus (enveloped DNA virus); spread via bodily fluids; causes mononucleosis type disease; generalized lymphadenopathy; oral

Question 6

EBV infection

Answer 6

Mononucleosis; spread by saliva; Herpes virus (enveloped DNA); atypical looking lymphocytes; generalized lymphadenopathy; oral

Question 7

Toxoplasma Gondii

Answer 7

orally ingested protozoan; can be dormant for years; particularly bad for immunocompromised pts.; lymphadenopathy (cervical, but can be generalized)

Question 8

Brucella

Answer 8

oral ingestion; Brucellosis; GNR; facultative intracellular pathogen; generalized lymphadenopathy

Question 9

Bartonella Hensiaie

Answer 9

Cat scratch disease (also from flea bite); GNR; facultative intracellular pathogen; generalized lymphadenopathy; painful nodes 5-10 days post bite/scratch

Question 10

Yersinia Pestis

Answer 10

Plague; GNR; facultative intracellular pathogen; lives in macs (dissemination); generalized lymphadenopathy; parenteral

Question 11

Salmonella enterica

Answer 11

oral ingestion; GNR; facultative intracellular (macs); generalized lymphadenopathy

Question 12

Francisella tularensis

Answer 12

Rabbit fever (common in hunters); GNR; facultative intracellular (macs); generalized lymphadenopathy