Tuberculosis physical examination
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mashal Awais, M.D.[2];Sophia Saad, Associate Editor - WikiDoc [3] Alejandro Lemor, M.D. [4]
Tuberculosis physical examination
Overview
Physical examination in tuberculosis (TB) is often nonspecific and may be entirely normal in early or subclinical disease; no single finding is pathognomonic for pulmonary TB.Dheda K, Barry CE, Maartens G (2016). "Tuberculosis". Lancet. doi:10.1016/S0140-6736(15)00151-8. PMID 26842682. The main goals are to assess overall severity (nutrition, vital signs), identify clues to extrapulmonary/disseminated TB, detect complications (e.g., effusion, tamponade), and identify comorbidities relevant to management (especially HIV).Zumla A, Raviglione M, Hafner R, von Reyn CF (2013). "Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra1200894. PMID 23432735.
General examination
Common nonspecific constitutional findings in active TB include:
Cachexia/wasting
Fever (may be absent in older adults or those on immunosuppressive therapy).Janssens JP, Krause KH (2004). "Pneumonia in the Very Old". The Lancet Infectious Diseases. doi:10.1016/S1473-3099(04)00926-7. PMID 14871636.
Pallor (e.g., anemia of chronic disease; consider marrow involvement in disseminated TB)
Tachycardia and tachypnea (nonspecific; can reflect fever, anemia, respiratory compromise, or sepsis-like presentations in advanced HIV-associated TB)
Pulmonary examination
Pulmonary findings vary with extent and location of disease and may be absent even in active TB.
Crackles/rales (often upper lobes posteriorly in post-primary TB)
Bronchial breath sounds (suggest consolidation/dense parenchymal disease)
Amphoric breath sounds (hollow, resonant; suggest a large cavity communicating with a patent bronchus)
Decreased breath sounds (pleural effusion, pneumothorax, or extensive parenchymal destruction)
Dullness to percussion (effusion or consolidation)
A normal pulmonary examination does not exclude active pulmonary TB.
Extrapulmonary tuberculosis: key physical findings by site
| Site | Examination findings | Notes |
|---|---|---|
| Peripheral TB lymphadenitis | Painless, firm lymphadenopathy (often cervical); may become fluctuant with draining sinus (scrofula) | Findings are site-specific and can substantially raise suspicion for TB. |
| TB meningitis / CNS TB | Nuchal rigidity/meningismus (may be absent early); altered mental status; cranial nerve palsies (~15% of TBM patients; CN VI > III > IV > VII); focal deficits (hemiplegia/hemiparesis in ~20%); papilledema (suggests hydrocephalus). MRC staging: I (GCS 15, no focal signs), II (GCS 11–14 or focal signs), III (GCS ≤10).Thwaites GE, van Toorn R, Schoeman J (2013). "Tuberculous Meningitis: More Questions, Still Too Few Answers". The Lancet Neurology. doi:10.1016/S1474-4422(13)70168-8. PMID 23948180.Li X, Ma L, Zhang L; et al. (2019). "Clinical Characteristics of Tuberculous Meningitis Combined With Cranial Nerve Palsy". Clinical Neurology and Neurosurgery. doi:10.1016/j.clineuro.2019.105423. PMID 31336359. | Bedside exam should prioritize mental status, cranial nerves, and signs of raised intracranial pressure. MRC stage at presentation is a key prognostic indicator. |
| Skeletal TB (including Pott disease) | Paraspinal tenderness/swelling (~58%); gibbus deformity/angular kyphosis (~17–25%); neurologic deficits from cord compression (~33%); cold abscess (non-tender, non-warm fluctuant paravertebral or psoas mass, ~25%; distinguishes from pyogenic spondylodiscitis).Louw QA, Tawa N, Van Niekerk SM, Conradie T, Coetzee M (2020). "Spinal Tuberculosis: A Systematic Review of Case Studies and Development of an Evidence-Based Clinical Guidance Tool for Early Detection". Journal of Evaluation in Clinical Practice. doi:10.1111/jep.13476. | Often insidious; consider pyogenic spondylodiscitis when systemic toxicity and marked local warmth are present. |
| Pleural TB / pleural effusion | Reduced chest expansion; decreased breath sounds; dullness to percussion | Overlaps with other causes of pleural effusion; correlate with imaging (see Tuberculosis chest X-ray findings). |
| Pericardial TB (effusion/tamponade; constriction) | See Cardiovascular examination below | |
| Peritoneal/abdominal TB | Ascites (~73–95%); diffuse abdominal tenderness (~48%, often without peritoneal signs); hepatomegaly/splenomegaly; doughy abdomen (thickened, matted omentum palpable through abdominal wall; classic but uncommon, ~5–13%).Sanai FM, Bzeizi KI (2005). "Systematic review: tuberculous peritonitis – presenting features, diagnostic strategies and treatment". Alimentary Pharmacology & Therapeutics. doi:10.1111/j.1365-2036.2005.02645.x. | |
| Genitourinary TB | Often minimal; costovertebral angle tenderness; scrotal mass/epididymal thickening | Sterile pyuria is a classic laboratory clue (see Tuberculosis laboratory findings). |
Cardiovascular examination (tuberculous pericarditis)
Tuberculous pericarditis may present with pericardial effusion/tamponade physiology or later constriction.
Cardiac tamponade: tachycardia, hypotension, elevated JVP with prominent x descent and absent y descent, muffled heart sounds, pulsus paradoxus (>10 mmHg inspiratory drop in systolic BP).Cremer PC, Klein AL, Imazio M (2024). "Diagnosis, Risk Stratification, and Treatment of Pericarditis: A Review". JAMA. doi:10.1001/jama.2024.17984.
Constrictive physiology: elevated JVP with prominent x and y descents, Kussmaul's sign, pericardial knock (early diastolic sound at the trough of the y descent, often confused with S3; timing is earlier in diastole), hepatomegaly, ascites, peripheral edema. Pulsus paradoxus is rare in pure constriction and usually indicates effusive-constrictive disease.Wang TKM, Klein AL, Cremer PC; et al. (2025). "2025 Concise Clinical Guidance: An ACC Expert Consensus Statement on the Diagnosis and Management of Pericarditis". Journal of the American College of Cardiology. doi:10.1016/j.jacc.2025.05.048.Garcia MJ (2016). "Constrictive Pericarditis Versus Restrictive Cardiomyopathy?". Journal of the American College of Cardiology. doi:10.1016/j.jacc.2016.01.076. PMID 27126534.
Findings suggesting disseminated / miliary TB
Disseminated (miliary) TB may have few localizing signs; a systematic examination can provide diagnostic clues.
Hepatosplenomegaly
Choroidal tubercles on dilated fundoscopic examination — when present, pathognomonic of miliary TB, though sensitivity is low (~8% in large adult series). Systematic fundoscopic examination after mydriatic administration should be performed in every patient with suspected miliary TB.Sharma SK, Mohan A, Sharma A, Mitra DK (2005). "Miliary Tuberculosis: New Insights Into an Old Disease". The Lancet Infectious Diseases. doi:10.1016/S1473-3099(05)70163-8. PMID 15978528.Mert A, Arslan F, Kuyucu T; et al. (2017). "Miliary Tuberculosis: Epidemiological and Clinical Analysis of Large-Case Series From Moderate to Low Tuberculosis Endemic Country". Medicine. doi:10.1097/MD.0000000000005875.
Peripheral lymphadenopathy
Cutaneous manifestations (e.g., erythema nodosum, lupus vulgaris) may occur
Special populations
HIV co-infection: extrapulmonary/disseminated disease is more common and physical findings may be atypical or minimal, especially with advanced immunosuppression. With CD4 <200 cells/μL, pulmonary findings may be absent and extrapulmonary involvement (lymphadenitis, pleuritis, pericarditis, meningitis) becomes more common; with CD4 <75 cells/μL, patients may present with a sepsis-like syndrome with mycobacteremia and no localizing signs.Meintjes G, Maartens G (2024). "HIV-Associated Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra2308181."Guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents With HIV". NIH Office of AIDS Research Advisory Council. 2025.
Older adults: fever and other systemic signs may be blunted; presentations are more often nonspecific (weight loss, functional decline); cavitation is less common radiographically. A high index of suspicion is required.Pérez-Guzmán C, Vargas MH, Torres-Cruz A, Villarreal-Velarde H (1999). "Does Aging Modify Pulmonary Tuberculosis? A Meta-Analytical Review". Chest. doi:10.1378/chest.116.4.961. PMID 10531160.
Clinical pearls and pitfalls
A normal physical examination does not exclude active TB; further diagnostic workup is essential when clinical suspicion exists.
Choroidal tubercles are pathognomonic of miliary TB — perform dilated fundoscopy in all patients with suspected disseminated disease.
Cold abscess (non-tender, non-warm) in the paravertebral or psoas region distinguishes spinal TB from pyogenic spondylodiscitis.
In HIV-associated TB with severe immunosuppression, the examination may be unrevealing despite life-threatening disease; maintain a low threshold for diagnostic testing.
Sterile pyuria in the appropriate epidemiologic context should prompt evaluation for genitourinary TB.
Paradoxical worsening of lymphadenopathy or other findings after starting TB treatment (or ART in HIV co-infection) may represent IRIS, not treatment failure.
References
Dheda K, Barry CE, Maartens G. Tuberculosis. Lancet. 2016. doi:10.1016/S0140-6736(15)00151-8. PMID: 26842682
Zumla A, Raviglione M, Hafner R, von Reyn CF. Tuberculosis. The New England Journal of Medicine. 2013. doi:10.1056/NEJMra1200894. PMID: 23432735
Janssens JP, Krause KH. Pneumonia in the Very Old. The Lancet Infectious Diseases. 2004. doi:10.1016/S1473-3099(04)00926-7. PMID: 14871636
Thwaites GE, van Toorn R, Schoeman J. Tuberculous Meningitis: More Questions, Still Too Few Answers. The Lancet Neurology. 2013. doi:10.1016/S1474-4422(13)70168-8. PMID: 23948180
Li X, Ma L, Zhang L, et al. Clinical Characteristics of Tuberculous Meningitis Combined With Cranial Nerve Palsy. Clinical Neurology and Neurosurgery. 2019. doi:10.1016/j.clineuro.2019.105423. PMID: 31336359
Louw QA, Tawa N, Van Niekerk SM, Conradie T, Coetzee M. Spinal Tuberculosis: A Systematic Review of Case Studies and Development of an Evidence-Based Clinical Guidance Tool for Early Detection. Journal of Evaluation in Clinical Practice. 2020. doi:10.1111/jep.13476
Sanai FM, Bzeizi KI. Systematic review: tuberculous peritonitis – presenting features, diagnostic strategies and treatment. Alimentary Pharmacology & Therapeutics. 2005. doi:10.1111/j.1365-2036.2005.02645.x
Cremer PC, Klein AL, Imazio M. Diagnosis, Risk Stratification, and Treatment of Pericarditis: A Review. JAMA. 2024. doi:10.1001/jama.2024.17984
Wang TKM, Klein AL, Cremer PC, et al. 2025 Concise Clinical Guidance: An ACC Expert Consensus Statement on the Diagnosis and Management of Pericarditis. Journal of the American College of Cardiology. 2025. doi:10.1016/j.jacc.2025.05.048
Garcia MJ. Constrictive Pericarditis Versus Restrictive Cardiomyopathy? Journal of the American College of Cardiology. 2016. doi:10.1016/j.jacc.2016.01.076. PMID: 27126534
Sharma SK, Mohan A, Sharma A, Mitra DK. Miliary Tuberculosis: New Insights Into an Old Disease. The Lancet Infectious Diseases. 2005. doi:10.1016/S1473-3099(05)70163-8. PMID: 15978528
Mert A, Arslan F, Kuyucu T, et al. Miliary Tuberculosis: Epidemiological and Clinical Analysis of Large-Case Series From Moderate to Low Tuberculosis Endemic Country. Medicine. 2017. doi:10.1097/MD.0000000000005875
Meintjes G, Maartens G. HIV-Associated Tuberculosis. The New England Journal of Medicine. 2024. doi:10.1056/NEJMra2308181
NIH Office of AIDS Research Advisory Council. Guidelines for the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents With HIV. 2025. https://clinicalinfo.hiv.gov/en/guidelines/hiv-clinical-guidelines-adult-and-adolescent-opportunistic-infections/mycobacterium
Pérez-Guzmán C, Vargas MH, Torres-Cruz A, Villarreal-Velarde H. Does Aging Modify Pulmonary Tuberculosis? A Meta-Analytical Review. Chest. 1999. doi:10.1378/chest.116.4.961. PMID: 10531160