Found this on pathological accuracy of diagnosing primary multifoci lung cancer vs intrapulmonary metastasis.
Take home message:
"Pathologists have a high degree of uncertainty and disagreement on staging multiple lung carcinomas. An improved pathologic method is required to distinguish separate primary tumors from intrapulmonary metastases. Until that is available, improved nomenclature is needed to convey the intrinsic uncertainty of the situation."
Sauce: https://www.uptodate.com/contents/multiple-primary-lung-cancers/abstract/1
Per one source, multiple lesions are becoming more common clinical issue:
"Patients with lung cancer may present with more than one primary lesion arising in the lung at the same time (synchronous multiple primary lung cancer) or may develop a second, metachronous, primary lung cancer after treatment of the initial lesion. This is becoming a more common clinical issue and remains a challenge due to how these tumors are classified [1]."
Sauce: https://www.uptodate.com/contents/multiple-primary-lung-cancers#!
To this anon, the lack of further care planned on metastatic lesions no matter the origination adds up about as well as a man dying from a glioblastoma without ever showing neurological symptoms. Kek
Thanks for doing what you do Baker!