Multiple primary malignancies

Abstract

Two cases of multiple primary malignancies (two or more neoplasms without any relationship between them) are presented in this paper. The first case (65 years) was a male in whom follicular carcinoma of thyroid, metachronous neuroendocrine tumor of duodenum and urinary bladder transitional cell carcinoma were diagnosed within an eight-year period. The second case (65 years) was a female with synchronous dual malignancy of lung and urinary bladder diagnosed within a very short period of time.