At the end of the post you can vote for the right diagnosis!
At the beginning of the year we published the 100 granuloma challenge which sought to encourage the submission of granulomatous lesions to meet set goal for the detection of new tuberculosis outbreaks in slaughterhouses.
To date the achievement of the challenge is only 18% in the case of the bovine species, but of 40% if we bring together all the species susceptible to this disease. The good news is that there is still a whole quarter to achieve it!
Species
Nº Suspected cases
Confirmed as TB
BOVINE
18
8
CAPRINE
5
1
OVINE
8
2
WILD BOAR
4
1
PORCINE
2
1 (M.avium)
MOUFLON
3
0
TOTAL
40
13
In this post we present images of a mediastinal lymph node of an eleven months old, male, Parda breed calf with tuberculosis-compatible macroscopic lesions. We invite you to solve which etiologic agent was isolated from the lesion that is observed in this lymph node.
Click on the option that you think is correct and then click on the “Get Results” button to see if you’ve succeeded.
What is your diagnosis? (77)
%%RATING%%
The microbiological culture allowed isolating a pure Rhodococcus equi culture from the lesion. It is therefore a case of bacterial pyogranulomatous lymphadenitis. All granulomatous lesions, especially at the lymphatic nodules, should be submitted for analysis and rule out tuberculosis cases, not only in the bovine species but also in other susceptible hosts such as goats, sheep or wild boar.
Your answers are highlighted below.
Question 1
Which micororganism was isolated form these lesions?
A
Rhodococcus equi
B
Mycobacterium bovis
C
Nocardia spp.
D
Rhizomucor pusillus
E
Echinococcus granulosus
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You'd better not waste your time in bacteriology... 😉
Tbc