NON-TUBERCULOUS MYCOBACTERIA

Question 1

Most common, rapidly
growing mycobacteria
that are associated with
localized cutaneous and
soft tissue infections

Answer 1

MYCOBACTERIUM FORTUITUM

Question 2

• Microscopy: Pleomhorpic–long to short, thick rods

Answer 2

MYCOBACTERIUM FORTUITUM

Question 3

• Old cultures: partially AFB

Answer 3

MYCOBACTERIUM FORTUITUM

Question 4

branching and filamentous with aerial hyphae

Answer 4

MB7H11 OF MYCOBACTERIUM FORTUITUM

Question 5

growth in media without CRYSTAL VIOLET

Answer 5

MAC OF MYCOBACTERIUM FORTUITU

Question 6

• Associated with cutaneous infections in immunocompromised persons

Answer 6

MYCOBACTERIUM CHELONAE

Question 7

• Exhibits greater resistance to
  antimicrobial agents

Answer 7

MYCOBACTERIUM CHELONAE

Question 8

• Microscopy: Strongly acid-fast with
  pleomorphism in young cultures

Answer 8

MYCOBACTERIUM CHELONAE

Question 9

• Culture: Rough to smooth, non-pigmented and have no filamentous branching

Answer 9

MYCOBACTERIUM CHELONAE

Question 10

• MAC: growth without crystal violet

Answer 10

MYCOBACTERIUM CHELONAE

Question 11

Reservoir of MYCOBACTERIUM ABSCESSUS SUBSP. ABSCESSUS

Answer 11

: Tap water

Question 12

• Related infection: Chronic lung disease and Otitis media

Answer 12

MYCOBACTERIUM ABSCESSUS SUBSP. ABSCESSUS

Question 13

MAC –exhibit growth in a medium without CRYSTAL VIOLET

Answer 13

MYCOBACTERIUM ABSCESSUS SUBSP. ABSCESSUS

Question 14

(+) 3-day arylsulfatase; (-) Nitrate

Answer 14

biochemical test of MYCOBACTERIUM ABSCESSUS SUBSP. ABSCESSUS

Question 15

• Related infections: Pulmonary, skin and bone infections

Answer 15

MYCOBACTERIUM SMEGMATIS

Question 16

(-) 3-day arylsulfatase; (+) Nitrate reduction

Answer 16

biochemical test of MYCOBACTERIUM SMEGMATIS

Question 17

• Microscopy: Long and tapered rods with partial acid-fastness; maybe beaded or ovoid in form

Answer 17

MYCOBACTERIUM SMEGMATIS

Question 18

smooth or rough

Answer 18

MB7H10 of MYCOBACTERIUM SMEGMATIS

Question 19

–exhibit growth in a medium without CRYSTAL VIOLET

Answer 19

o Culture: MAC of MYCOBACTERIUM SMEGMATIS

Question 20

• Chronic skin disease, mucous membrane and nerve tissue

Answer 20

MYCOBACTERIUM LEPRAE

Question 21

• Not considered contagious disease

Answer 21

MYCOBACTERIUM LEPRAE

Question 22

• MOT: Person to person contact through inhalation (nasal secretions), Contact with infected skin, arthropod bites and ingestion of breast milk and transplacental transmission for infants

Answer 22

MYCOBACTERIUM LEPRAE

Question 23

Tuberculoid (localized & benign) and
Lepromatous Leprosy (disseminated & malignant)

Answer 23

Forms of M leprae

Question 24

Rod shaped and exhibit “cigar- pocket” or “pocket-fence

Answer 24

MYCOBACTERIUM LEPRAE

Question 25

Fernandez and Mitzuda Reaction

Answer 25

Skin test for M. leprae

Question 26

• Well demarcated, dry patch

Answer 26

TUBERCULOID LEPROSY ((TT)

Question 27

• Minimal disfigurement
  o No leonine facies
  o No claw-shaped hands
  o No pendulous earlobes

Answer 27

TUBERCULOID LEPROSY ((TT)

Question 28

Good immune response (high resistance)

Answer 28

TUBERCULOID LEPROSY ((TT)

Question 29

• Disfigurement is there
  o Leonine facies

Answer 29

Lepromatous Leprosy

Question 30

• Disfigurement is there
  o Leonine facies
  o Claw-shaped hands
  o Pendulous ear lobes
  o Saddle nose

Answer 30

LEPROMATOUS LEPROSY (LL)

Question 31

• Suppressed (low resistance)

Answer 31

LEPROMATOUS LEPROSY (LL)