CT Thorax findings in patients with early laryngeal cancer

ABSTRACT NUMBER: (NESTAC_04)

AUTHORS
Sherilyn Chew1
David Hamilton2

AFFILIATIONS
Faculty of Medical Sciences, Newcastle University1
ENT Department, Freeman Hospital2

CORRESPONDING AUTHOR CONTACT EMAIL
ku.ca.eltsacwen@1wehc.S
ku.ca.eltsacwen@notlimah.divaD

MAIN ABSTRACT TEXT

Background
The National Institute for Health and Care Excellence (NICE) states that CT thorax is not required in patients with primary T1/T2 laryngeal cancer. Smoking is a risk factor for both laryngeal and bronchial carcinomas. Freeman Hospital currently requests CT thorax in addition to CT neck in all head & neck cancer patients.

Aims
1. To assess rates of significant CT thorax findings in patients with primary T1/T2 laryngeal cancer & the need to continue chest imaging. 2. To assess correlation between smoking & rates of significant CT thorax findings in this cohort.

Methods
A retrospective audit was done on 693 patients with head & neck cancers at the Freeman Hospital ENT Department. Target criteria included patients with primary T1/T2 squamous cell carcinoma in the vocal cords, epiglottis, aryepiglottic fold and subglottis, diagnosed from January 2016 to August 2018.

Results
51 patients met target criteria. 42 were smokers/ ex-smokers, 6 were non- smokers, and 3 did not have smoking status documented. 4 patients (7.8%) had significant lung lesions on CT thorax. All of them were smokers. 3 patients had primary bronchogenic tumours ranging from 22-30mm. 1 patient had multifocal nodularities throughout both lungs due to metastases from a primary glottic tumour.

Conclusion
CT thorax should be requested in smokers/ ex-smokers with primary T1/T2 laryngeal cancer. Repeat audit on a larger cohort, analysing smokers versus non-smokers separately to assess if guidelines should be different for each group.