Research Article

Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study

Volume: 78 Number: 3 September 30, 2025
TR EN

Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study

Abstract

Objective: Extrapulmonary tuberculosis (EPTB) accounts for a growing proportion of the global TB burden, with rising incidence in many countries, including Türkiye. This study aimed to describe the demographic, clinical, diagnostic, and therapeutic characteristics of adult patients diagnosed with EPTB in a tertiary care setting. Methods: This retrospective cohort included adults (≥18 years) diagnosed with EPTB between June 2010 and March 2022 at two tertiary hospitals in Ankara. Descriptive and comparative statistical analyses were performed. Results: A total of 93 patients were included (51.6% male; median age: 55 years). The most affected sites were spine/joints (32.3%), lymph nodes (26.9%), and the central nervous system (16.1%). Histopathological confirmation was achieved in 60.2%, culture positivity in 30.1%, and PCR positivity in 31.2%. AFB staining was positive in 25.8%, and drug susceptibility testing was performed in 27.9%, revealing resistance in two patients. Standard four-drug anti-TB therapy was initiated in 95.7% of cases, with a median duration of 6 months (range: 1–13). Surgery was required in 22.6% of patients. Nine patients (9.7%) died during follow-up. Immunosuppression was significantly more common among non-survivors (44.4% vs. 11.9%, p = 0.027), who also had shorter durations of therapy (p < 0.001). Conclusion: EPTB in adults can present with severe forms, particularly spinal and CNS involvement. Histopathology remains a key diagnostic tool. Mortality was associated with immunosuppression and insufficient treatment duration, highlighting the need for early diagnosis and individualized management strategies.

Keywords

Ethical Statement

The study protocol was approved by the Ethics Committee of Ankara Bilkent City Hospital (Decision No: E2-22-1952, Date: 08/06/2022). This study was conducted in accordance with the Declaration of Helsinki and the institutional data protection regulations.

Thanks

We would like to express our sincere gratitude to Dr. Filiz Duyar Ağca, one of the physicians at Ankara Tuberculosis Dispensary No. 3, for her valuable support and contributions.

References

  1. Bagcchi S. WHO’s global tuberculosis report 2022. Lancet Microbe. 2023;4(1):e20.
  2. Lee H, Kim J, Kim J, Park Y-J. Review of the global burden of tuberculosis in 2023: insights from the WHO Global Tuberculosis Report 2024. Public Health Weekly Report 2025; 18(Suppl 11): S55-S69.
  3. Estaji F, Kamali A, Keikha M. Strengthening the global Response to Tuberculosis: Insights from the 2024 WHO global TB report. J Clin Tuberc Other Mycobact Dis. 2025;39:100522.
  4. Priyadharshini A. The spectrum of Extra Pulmonary Tuberculosis: emphasizing the importance of Microbiological diagnosis - A Case Series. Indian Journal of Tuberculosis. online June 2025.
  5. Gopalaswamy R, Dusthackeer VA, Kannayan S, Subbian S. Extrapulmonary tuberculosis—an update on the diagnosis, treatment and drug resistance. J Resp. 2021;1(2):141-64.
  6. Naranjo MZ, Torres JDA, Poveda ATS, García V, Paternina MA. Tuberculosis Beyond the Lungs: A Pictorial Review of Key Diagnostic Imaging Insights. Cureus. 2025;17(3).
  7. Azad KAK, Chowdhury T. Extrapulmonary Tuberculosis (Eptb): An Overview. Bangladesh Journal of Medicine. 2022;33(2):130-7.
  8. Davidson G, Davidson DU, Okoye OK, Mensah LS, Ukaegbu EC, Agbor DBA, et al. Overview of tuberculosis: causes, symptoms and risk factors. Asian J Res Infect Dis. 2024;15(9):8-19.

Details

Primary Language

English

Subjects

Infectious Diseases

Journal Section

Research Article

Publication Date

September 30, 2025

Submission Date

June 23, 2025

Acceptance Date

September 23, 2025

Published in Issue

Year 2025 Volume: 78 Number: 3

APA
Araz, H., Kazcı, S., Eser, F., & Aypak, A. (2025). Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study. Ankara Üniversitesi Tıp Fakültesi Mecmuası, 78(3), 227-238. https://doi.org/10.65092/autfm.1722836
AMA
1.Araz H, Kazcı S, Eser F, Aypak A. Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study. Ankara Üniversitesi Tıp Fakültesi Mecmuası. 2025;78(3):227-238. doi:10.65092/autfm.1722836
Chicago
Araz, Halime, Saliha Kazcı, Fatma Eser, and Adalet Aypak. 2025. “Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study”. Ankara Üniversitesi Tıp Fakültesi Mecmuası 78 (3): 227-38. https://doi.org/10.65092/autfm.1722836.
EndNote
Araz H, Kazcı S, Eser F, Aypak A (September 1, 2025) Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study. Ankara Üniversitesi Tıp Fakültesi Mecmuası 78 3 227–238.
IEEE
[1]H. Araz, S. Kazcı, F. Eser, and A. Aypak, “Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study”, Ankara Üniversitesi Tıp Fakültesi Mecmuası, vol. 78, no. 3, pp. 227–238, Sept. 2025, doi: 10.65092/autfm.1722836.
ISNAD
Araz, Halime - Kazcı, Saliha - Eser, Fatma - Aypak, Adalet. “Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study”. Ankara Üniversitesi Tıp Fakültesi Mecmuası 78/3 (September 1, 2025): 227-238. https://doi.org/10.65092/autfm.1722836.
JAMA
1.Araz H, Kazcı S, Eser F, Aypak A. Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study. Ankara Üniversitesi Tıp Fakültesi Mecmuası. 2025;78:227–238.
MLA
Araz, Halime, et al. “Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study”. Ankara Üniversitesi Tıp Fakültesi Mecmuası, vol. 78, no. 3, Sept. 2025, pp. 227-38, doi:10.65092/autfm.1722836.
Vancouver
1.Halime Araz, Saliha Kazcı, Fatma Eser, Adalet Aypak. Patterns of Organ Involvement and Mortality in Extrapulmonary Tuberculosis: A Twelve-Year Retrospective Study. Ankara Üniversitesi Tıp Fakültesi Mecmuası. 2025 Sep. 1;78(3):227-38. doi:10.65092/autfm.1722836