MULTIPLE primary malignant neoplasms are now regarded as a common occurrence and not a medical curiosity. Despite the relative frequency of multiple malignant tumors, instances of one cancer metastasizing to another are most uncommon. The case described in this report is an example of this rare and curious association. Report of a Case A 68-year-old white male entered St. Francis Hospital, La Crosse, Wis., for the first time on June 10, 1958, because of pain in the middorsal spine of 2 weeks' duration. The pain was described as sharp, severe, and continuous, with radiation to the right lower chest anteriorly. System review was otherwise negative. Past medical history was not remarkable. His mother died of metastatic carcinoma of the thyroid at age 65. Physical examination revealed a well-developed, moderately obese man with normal vital signs. Examination of the head and neck disclosed a single, 2-cm. firm node in the left