3 doctors weighed in:
Could a noncancerous lung tumor turn cancerous without warning?
3 doctors weighed in

Dr. David Cooke
Surgery - Thoracic
1 doctor agrees
In brief: Only certain types
Some noncancerous lung tumors are benign and will always remain benign.
Other noncancerous tumors, such as bronchoalveolar carcinomas (now called carcinoma in-situ) can become cancerous tumors.

In brief: Only certain types
Some noncancerous lung tumors are benign and will always remain benign.
Other noncancerous tumors, such as bronchoalveolar carcinomas (now called carcinoma in-situ) can become cancerous tumors.
Dr. David Cooke
Dr. David Cooke
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1 comment
Dr. Eric Toloza
Bromchoalveolar carcinomas are considered by many as a form of non-small cell lung cancer. Cancers can also develop from scars in the lung, so-called scar carcinomas. Carcinoid tumors, a slow-growing cancer, can also develop from precancerous carcinoid tumorlets.
Dr. Craig Carter
Surgery - Thoracic
In brief: Not likely
If a mass is found in the lung, and is determined to be benign, it is unlikely that will change.
If the pathology is pre- cancerous, then resection is in order. For a known benign mass to suddenly become malignant, the original diagnosis would be in question.

In brief: Not likely
If a mass is found in the lung, and is determined to be benign, it is unlikely that will change.
If the pathology is pre- cancerous, then resection is in order. For a known benign mass to suddenly become malignant, the original diagnosis would be in question.
Dr. Craig Carter
Dr. Craig Carter
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