Case Report: Tumor-to-tumor metastasis with prostate cancer metastatic to lung cancer: the first reported case

Tumor-to-tumor metastasis (TTM) occurs rarely in tumor progression, but this event has significant clinical implications. Although the impact of TTM on patient prognosis and survival has been increasingly recognized, understanding of TTM biology and treatment is limited. Prostate cancer is among the most common malignancies threatening male health. Prostate cancer can potentially metastasize to primary lung Cancer; however, this is an exceedingly rare event. We here report for the first time a case of TTM from a prostate cancer to a coexisting primary lung cancer.

Automated summary

Tumor-to-tumor metastasis (TTM) is a rare occurrence in tumor progression, but it has significant clinical implications on patient prognosis and survival. Despite limited understanding of TTM biology and treatment, its impact is increasingly recognized. Prostate cancer, a common malignancy in males, rarely metastasizes to primary lung cancer. However, we report the first case of TTM from prostate cancer to a coexisting primary lung cancer.