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Depending on the sort of patient population surveyed, as few as 20%, or as many as 75% of pulmonary tuberculosis cases may be without symptoms. [ 2 ] Tuberculosis should be suspected in adults when a pneumonia-like illness has persisted longer than three weeks, or when a respiratory illness in an otherwise healthy individual does not respond to ...
The rate of tuberculosis varies with age. In Africa, it primarily affects adolescents and young adults. [180] However, in countries where incidence rates have declined dramatically (such as the United States), tuberculosis is mainly a disease of the elderly and immunocompromised (risk factors are listed above).
Nodules and fibrotic scars may contain slowly multiplying tubercle bacilli with the potential for future progression to active tuberculosis. [1] Persons with these findings, if they have a positive tuberculin skin test reaction, should be considered high-priority candidates for treatment of latent infection regardless of age.
Nearly 85% of patients with spina ventosa are below 6 years of age. The bones of hands are more commonly involved than those of the feet. The proximal phalanx of the index and middle fingers are the commonest sites of involvement. Up to nearly 7% of children with pulmonary tuberculosis may develop this condition. [8]
Miliary tuberculosis is a form of tuberculosis that is characterized by a wide dissemination into the human body and by the tiny size of the lesions (1–5 mm). Its name comes from a distinctive pattern seen on a chest radiograph of many tiny spots distributed throughout the lung fields with the appearance similar to millet seeds—thus the term "miliary" tuberculosis.
Pulmonary interstitial emphysema is the condition of air escaping overdistended alveoli into the pulmonary interstitium. It is a rare disease that occurs most often in premature infants, even though it is possible to appear in adults. [25] It often presents as a slow deterioration with the need for increased ventilatory support.
Tuberculous pericarditis is a condition that accounts for 1-2% of presentations of tuberculosis outside of the lungs. [2] It is found in people of all ages and typically affects males more frequently than females. [4] Tuberculosis is also one of the leading causes of effusive pericarditis worldwide. [6]
Aspergilloma in an old tuberculosis cavity; healed, calcified tuberculous lesions are also present towards the right of the image Healed tuberculous cavity, where the entire left lung is destroyed. Post-tuberculosis lung disease (PTLD) is ongoing lung disease that is caused by tuberculosis (TB) but persists after the infection is cured. [1]