Pulmonary T.B

Here again, a new short medical articles contains latest information about health. Today we will talk about T.B
So this cool medical article today will start with organisms that can cause T.B:
1-  Mycobacterium tuberculosis (human type) it causes most of infection.
2-  Mycobacterium bovis à is endemic in chattel & rarely affect man
3-  Atypical mycobacteriuim (cause +ve tuberculin)
It is lead to +ve tuberculin
Affect cervical L.N. Common in immunopomromised patients.
e.g     * M. Marinum
* M. Kansasii
* M. Avium
Now, going to next health topic in this cool medical article the pathology of T.B:
1-  Those at risk of acquiring T.B.
          *  Children                               * Contact
          *  Immunocompromised                    * Living in overcrowding
2-  Entry of the organism through alimentary or respiratory tract. So, the appearance of clinical picture depends on
·        Natural resistance
·        Standard of living
·        The presence of previous disease as D.M., uremia or liver cirrhosis Predispose to pulmonary. T.B.
3-  The reaction of the body towards tubercle bacilli depends on whether those bacilli first seen by the body or it is the 2nd exposure so if:
·        1st exposure          leads 1ry complex
* Gohn’s focus which is small area of consolidation in the upper part of lower  lobe or lower part of upper lobe.
* lymphangitis
* lymphadenitis (hilar L.N.)
·        2nd exposure (post primary), here is the body develop resistance & hypersensitivity
After the pathology in this cool medical article, we will talk about TB clinical picture:
symptomes*1st common symptoms with pulmonary T.B:
·        Night fever
·        Night sweating
·        Loss of  Wieght   
·        Loss of appetite
I-Clinical picture of lry complex:
In most cases the 1ry infection produce no symptoms
 or signs & the condition usually passed unnoticed unless the following investigations done.
·        X-ray
·        Sputum
skin sensitvity test·        Tuberculin test shows +ve conversion from
·        Fever, dry cough may occur for 1-2 weeks.
II-As a result of hypersensitivity:
     a-  Erythema nodosum      
     * Bluish red
* Raised
* Tender
* Cutaneous on the skin of tibia
* Tuberculin test is strongly + ve
b-  Pleural effusion (exudative reaction)
c-  Phylectinular conjunctivitis.
phylectinular conjuctivitis

III- progression of primary pulmonary tuberculosis
·        General features of T.B. 
·        Apical lesion       
·        Sputum +ve              
·        Haemoptysis
IV. Post primary (adulthood TB)
A patient with 1 ry T.B. with 2nd exposure or reactivation as mentioned, may presented by the following:
                   * General features of T.B.
* Cough, expectorant
* Haemoptysis may result form
1- Bleeding from vascular tissue granulation
2- Erosion of big vessel traversing tuberculous cavity

Manifestation of pneumonia or cavity
• Dyspnea.
• Pleural effusion
• L.N. enlargement which leads to pressure on bronchus.
• Bronchostenosis or pulmonaiy fibrosis are late complications
Finally, we reached the end of our short medical article. Follow us to read more about latest information on health and fitness.

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