The Minister for Health and Social Services, Mark Drakeford, has been giving evidence on 26 June 2014 on the implementation of the Welsh Government's Cancer Delivery Plan.
The committee has been considering whether Wales is on course to achieve the outcomes and performance measures set out in the Cancer Delivery Plan by 2016.
The plan aims to improve standards for cancer services across the country.
Plaid Cymru AM Elin Jones, Conservative AM Janet Finch Saunders and Labour AM, Leighton Andrews raised concerns about inconsistent services across the country, especially with rarer forms of cancer and said there needed to be greater compliance.
Darren Miller, Conservative health spokesman in the assembly said there was a "theme" from patients he had spoken to with regards to "concerns about diagnosis of cancer".
Mr Drakeford said the Cancer Implementation Group was looking at the possibility of creating a single cancer hub for Wales.
This would be an "authoritative place" he said which would offer the best possible advice for patients, tested by NHS specialists.
Welsh Liberal Democrat leader Kirsty Williams asked Mr Drakeford whether there was a need for a national system for individual funding requests.
He said he would be reviewing the evidence before making a decision in the autumn.
The committee also looked at whether the current level of funding for cancer services was appropriate, used effectively and provided value for money.