Impact of Cytological Sampling on EGFR Mutation Testing in Stage III-IV Lung Adenocarcinoma

Table 1

Reasons why EGFR testing was not done.

		%
Insufficient sample for EGFR mutation testing	9	40.9
(i) Histological tumour sampling	(6)	(27.3)
(ii) Cytological tumour sampling	(3)	(13.6)
No sample sent (no documented reason)	10	45.5
Deemed not fit for treatment	2	9.1
Declined treatment	1	4.5