Electronic ISSN 2287-0237

VOLUME

ETIOLOGY OF SIZE BASED PULMONARY NODULES IN ASIA.

SEPTEMBER 2016 - VOL.12 | ORIGINAL ARTICLE
OBJECTIVE:

To determine whether the American College of Chest Physicians’ lung nodule screening recommendation is an effective tool in diagnosing Asian patients 

MATERIALS AND METHODS:

This is a retrospective study of 36 patients from 2012-2014 that were identified to have had pulmonary nodules through chest CT scan results. The data collected from patients were evaluated then illustrated to find out the nature of lung nodules among Asian population. The pulmonary nodule is based on size alone regardless of other morphology for instance border, calcification etc.

RESULTS:

Out of 36 patients, 23 were diagnosed with tuberculosis (TB), 19 tested positive for lung malignancy, 5 cases of TB co existing with cancer and 6 cases of non-tuberculous mycobacterium (NTM) infection. The types of lung cancer found were 7% small cell lung cancer, 7% squamous cell lung cancer and 86% adenocarcinoma. Nodule sizes were classified into 3 groups according to measurement. 4.5-11 mm (100% TB and 0% cancer), 12-20 mm (60% TB and 40% cancer) and 21-88 mm (52% TB and 48% cancer).

CONCLUSION:

Lung nodule evaluation among Asian patients requires specific guidelines that consider the high prevalence of tuberculosis and other infections. The statistical results from our study proves that the American College of Chest Physicians’ lung nodule screening recommendation, if practiced by Asian physicians, should be revised according to the current health status and presence of other diseases of the Asian population.

Keywords:

CT scan, lung cancer, non-tuberculous myobacterium, pulmonary nodules, tuberculosis

MEDIA
Table 1:
Demographic data classified according to diagnosis.
Table 2:
Cytopathology results of pulmonary nodules according to size.
Table 3:
A study reported by Swensen et al. on the relationship between the size of lung nodules and the chance of malignancy.
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