If a tuberculosis infection does become active, it most commonly involves the lungs (in about 90% of cases). Symptoms may include chest pain and a prolonged cough producing sputum. About 25% of people may not have any symptoms (i.e. they remain "asymptomatic"). Occasionally, people may cough up blood in small amounts, and in very rare cases, the infection may erode into the pulmonary artery or a Rasmussen's aneurysm, resulting in massive bleeding. Tuberculosis may become a chronic illness and cause extensive scarring in the upper lobes of the lungs. The upper lung lobes are more frequently affected by tuberculosis than the lower ones. The reason for this difference is not clear. It may be due either to better air flow, or to poor lymph drainage within the upper lungs.
What percentage of cases include chest pain? (If the question is unanswerable, say "unanswerable")
unanswerable
Om en tuberkulosinfektion blir aktiv är det vanligast att den involverar lungorna (i cirka 90% av fallen). Symtomen kan vara bröstsmärta och långvarig hosta som producerar sputum. Omkring 25 % av människor kanske inte har några symtom (d.v.s. de förblir "asymtomatiska"). Ibland kan människor hosta upp blod i små mängder, och i mycket sällsynta fall, infektionen kan erodera in i lungartären eller en Rasmussens aneurysm, vilket resulterar i massiv blödning. Tuberkulos kan bli en kronisk sjukdom och orsaka omfattande ärrbildning i lungornas övre lober. De övre lungloberna drabbas oftare av tuberkulos än de nedre. Orsaken till denna skillnad är inte klarlagd. Det kan bero antingen på bättre luftflöde, eller på dålig lymfdränering i de övre lungorna. Vilken andel av fallen inkluderar bröstsmärta? (Om frågan är obesvarad, säg "osvarbar")
If a tuberculosis infection becomes active, it is most common that it involves the lungs (in approximately 90% of cases). Symptoms may include chest pain and long-term cough producing sputum. About 25% of people may have no symptoms (i.e. they remain "asymptomatic"). Sometimes people may cough up blood in small amounts, and in very rare cases, the infection may erode into the pulmonary artery or a Rasmussen aneurysm, resulting in massive bleeding. Tuberculosis can become a chronic disease and cause extensive scarring in the upper lobes of the lungs. The upper lunglobes are more often affected by tuberculosis than the lower ones. The reason for this difference is not clear. It may be due either to better air flow, or to poor lymph drainage in the upper lungs. What proportion of cases includes chest pain? (If the question is unanswered, say "unanswerable")
Osvarsbart
Unanswerable