Acid-fast Bacteria and Bacteria without Cell Walls

Question 1

Described as subpleural granuloma in primary tuberculosis

Answer 1

Ghon’s focus

Question 2

Ghon’s focus with associated lymph node involvement

Answer 2

Ghon’s complex

Question 3

Radiologically detectable calcification in primary tuberculosis infection

Answer 3

Ranke’s complex

Question 4

Radiologic sign in apices of patients with reactivation tuberculosis

Answer 4

Simon’s focus

Question 5

This virulence factor of M. tuberculosis acts as its antiphagocytic factor

Answer 5

Cord factor

Question 6

Cavitation from tuberculosis can lead to secondary infection with this organism:

Answer 6

Aspergillus fumigatus

Question 7

Large aggregates of lipid-laden macrophages described as “red snappers”

Answer 7

Lepra cells

Question 8

Lepra cells and globi are histopathologic findings in:

Answer 8

Lepromatous leprosy

Question 9

Drugs used in tuberculoid leprosy

Answer 9

Dapsone

Rifampin

Question 10

Leonine facies are seen in

Answer 10

Lepromatous leprosy

Question 11

Lesions at the angle of the mouth in congenital syphilis

Answer 11

Rhagades

Question 12

Tabes dorsalis is caused by

Answer 12

Treponema pallidum

Question 13

Ocular finding in tertiary syphilis

Answer 13

Argyll-Robertson pupil

Question 14

Aoritis in tertiary syphilis is due to the involvement of the:

Answer 14

Vasa vasorum

Question 15

Etiology of lyme disease

Answer 15

Borrelia burgdoferi

Question 16

Characteristic lesion in tertiary syphilis

Answer 16

Gumma

Question 17

Myocarditis in lyme disease shows this ECG finding

Answer 17

AV block

Question 18

Characteristic lesion in secondary syphilis

Answer 18

Condyloma lata

Question 19

Erythema chronicum migrans is caused by

Answer 19

Borrelia burgdoferi

Question 20

Animal host of Borrelia spp.

Answer 20

Ixodes ticks

Question 21

Characteristic lesion in primary syphilis

Answer 21

Chancre

Question 22

Leprospirosis presents with tenderness most commonly in the

Answer 22

Calf

Question 23

Most severe form of leptosporosis

Answer 23

Weil syndrome

Question 24

Triad of Weil syndrome

Answer 24

Bleeding
Jaundice
Uremia

Question 25

Histologic finding in trachoma

Answer 25

Halberstadter-Prowazek inclusions

Question 26

C. trachomatis strains in chlamydia genital tract infections

Answer 26

D to K

Question 27

Drug of choice in lyme disease

Answer 27

Doxycycline

Question 28

Cough in late onset neonatal chlamydial pneumonia is described as

Answer 28

Staccato cough

Question 29

Suppurative inguinal lymphadenitis seen in lymphogranuloma venereum

Answer 29

Buboes

Question 30

Drug of choice in syphilis

Answer 30

Penicillin

Question 31

This cause of walking pneumonia can also cause Guillain-Barré syndrome, Raynaud’s phenomenon, and Stevens-Johnson’s syndrome

Answer 31

Mycoplasma pneumoniae

Question 32

Drugs used in lepromatous leprosy

Answer 32

Clofazimine
Dapsone
Rifampin

Question 33

Most common cause of atypical pneumonia

Answer 33

Mycoplasma pneumoniae

Question 34

Skin nodules in lepromatous leprosy

Answer 34

Erythema nodosum leprosum

Question 35

Colonies of Mycoplasma pneumoniae in culture is described as:

Answer 35

Dome-shaped with “fried egg” or “mulberry” appearance

Question 36

Three obligate intracellular bacteria

Answer 36

Chlamydia spp.
Mycoplasma spp.
Rickettsia spp.

Question 37

Smallest organisms capable of independent replication

Answer 37

Mycoplasma spp.

Question 38

Most frequently isolated rapidly growing mycobacteria from pulmonary, skin, and soft tissue infections

Answer 38

Mycobacterium abscessus

Question 39

Virulence factor of mycobacteria that prevents lysosome fusion

Answer 39

Sulfatide

Question 40

Mycobacterium classification that produces pigment in light and not in dark conditions

Answer 40

Photochromogens

Question 41

Multidrug resistance of TB refers to resistance to (2)

Answer 41

Isoniazid

Rifampicin

Question 42

XDR resistance refers to which drugs

Answer 42

Isoniazid
Rifampicin
Quinolone
Aminoglycoside (amikacin, capreomycin, kanamycin)

Question 43

Most common extracellular form of TB infection

Answer 43

Tuberculous lymphadenitis

Question 44

Photochromogen almost indistinguishable in presentation from tuberculosis

Answer 44

M. kansasii