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    Significance of lung nodules detected on chest CT among adult Aboriginal Australians – a retrospective descriptive study

    Access Status
    In process
    Authors
    Ng, L.Y.
    Howarth, T.P.
    Doss, Arockia
    Charakidis, M.
    Karanth, N.V.
    Mo, L.
    Heraganahally, S.S.
    Date
    2024
    Type
    Journal Article
    
    Metadata
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    Citation
    Ng, L.Y. and Howarth, T.P. and Doss, A.X. and Charakidis, M. and Karanth, N.V. and Mo, L. and Heraganahally, S.S. 2024. Significance of lung nodules detected on chest CT among adult Aboriginal Australians – a retrospective descriptive study. Journal of Medical Radiation Sciences. 71 (3): pp. 365-374.
    Source Title
    Journal of Medical Radiation Sciences
    DOI
    10.1002/jmrs.783
    ISSN
    2051-3895
    Faculty
    Faculty of Health Sciences
    School
    Curtin Medical School
    URI
    http://hdl.handle.net/20.500.11937/97701
    Collection
    • Curtin Research Publications
    Abstract

    Introduction: There are limited data on chest computed tomography (CT) findings in the assessment of lung nodules among adult Aboriginal Australians. In this retrospective study, we assessed lung nodules among a group of adult Aboriginal Australians in the Northern Territory of Australia. Methods: Patients who underwent at least two chest CT scans between 2012 and 2020 among those referred to undergo lung function testing (spirometry) were included. Chest CT scans were assessed for the number, location, size and morphological characteristics of lung nodules. Results: Of the 402 chest CTs assessed, 75 patients (18.7%) had lung nodules, and 57 patients were included in the final analysis with at least two CT scans available for assessment over a median follow-up of 87 weeks. Most patients (68%) were women, with a median age of 58 years and smoking history in 83%. The majority recorded only a single nodule 43 (74%). Six patients (10%) were diagnosed with malignancy, five with primary lung cancer and one with metastatic thyroid cancer. Of the 51 (90%) patients assessed to be benign, 64 nodules were identified, of which 25 (39%) resolved, 38 (59%) remained stable and one (1.8%) enlarged on follow-up. Nodules among patients with malignancy were typically initially larger and enlarged over time, had spiculated margins and were solid, showing no specific lobar predilection. Conclusions: Most lung nodules in Aboriginal Australians are likely to be benign. However, a proportion could be malignant. Further prospective studies are required for prognostication and monitoring of lung nodules in this population.

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    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.