New medical condition after submitting the medical test results?

[harirajmohan]

See section 7.8 in this link below where CBSA can process a person for further questioning if they suspect an arriving foreign national as having a major medical issue. Even if someone has been approved to become a PR until they have completed a landing and become a PR they have no right to enter the country and in any case will always be a foreign national in the country until they become citizens.

So whilst it may be rare to be asked during a landing there can be exceptions if someone arrives with an obvious serious looking illness that might be a concern visibly to the initial inspecting officer for that officer to require additional processing

As for not being a candidates responsibility to notify anyone it is always the candidates responsibility to notify IRCC of any material changes that could affect their PR application, even major long term medical issues post medical. Of course human nature is such that most people will not notify medical issues but then they still need to accept if they need ongoing care post landing there will be a period when they do not qualify.

http://www.cic.gc.ca/english/resources/manuals/enf/enf04-eng.pdf

Yes this is nothing new and nothing specific to PR. This rule is there for all countries which they check if there is any communicable disease among the passengers travelling to seek entry into a country.
Example, If you travel in the regions of yellow fever and land within certain days then yes they will refer to further check. Visitors can be even denied entry but not for PRs.
For PR prelanding: There is no requirement to provide additional medical or declare medical issues unless asked specifically for one by cic/at the border.
Post landing: I dont see anything of this discussion even applies to declare medical condition (unless one is contracted with some communicable disease - in this case doctor at origin country will advice not to travel anyway - this issue is for all)

12.2 requires the PR visa holder to advise the officer of any relevant fact that have changed since the issuance of the visa. Whether they ask the question or not, you are still suppose to advise them of a change, not just in family status, but anything else that may have made you inadmissible prior to the visa being issued.

http://laws-lois.justice.gc.ca/eng/regulations/sor-2002-227/section-51.html

Yes correct, They need to inform on their status changes (divorce/separation, new born etc) while landing.
For medical related, its same as mentioned above. Nothing specific to PR (other than what is mentioned for qualifying PR - medical exam is part of application process). Medical is already submitted by him/her. So more additional declaration required by candidates unless cic/border asks for new one.

Content from your link:
Becoming a permanent resident
(ii) a medical certificate — based on the most recent medical examination to which they were required to submit under paragraph 16(2)(b) of the Act and which took place within the previous 12 months — that indicates that their health condition is not likely to be a danger to public health or public safety and is not reasonably expected to cause excessive demand;

Due to the above reason PR visa is being issued with validity of 12 months from medicals.

 

[canuck_in_uk]

If an applicant develops a condition that renders them medically inadmissible after the medical is done, they are required to inform IRCC. Not doing so is misrepresentation.

It is the same situation as an applicant being convicted of a crime after submitting their PCCs. It makes them inadmissible and must be reported to IRCC.