DNA Ploidy Study in 1,673 Fresh Solid Tumors

Kim, Min Joo; Kim, Han Kyeum; Chae, Yang Seok; Yeom, Bum Woo; Kim, In Sun

Abstract

PURPOSE
To evaluate the possible role of DNA content abnomrality in solid tumors as a diagnostic indicator in Korean patients, the incidence of aneuploidy in the major organs were analyzed and compared with the incidences which have been reported in the literatures.
MATERIALS AND METHODS
Flow cytometric analysis of DNA content were performed on the 1673 fresh tissues of neoplastic lesions which were obtained for the last five years in Hospital.
RESULTS
The frequency of aneuploidy was more than 50% in the primary malignant tumors of the stomach, colon, esophagus, liver, biliary tract, pancreas, head and neck organs, salivary gland, lung, breast, ovary, CNS and urinary tract. However, the frequency of aneuploidy was as low as 7% in papillary carcinoma of thyroid and about 30% in renal cell carcinoma and malignant lymphomas. High frequency of aneuploidy (more than 70%) was seen in the metastatic tumors in liver, brain, ovary and lymph nodes. Aneuploidy was also found in benign tumors of salivary gland, adenomas of endocrine organs, meningiomas, smooth muscle tumors and schwannomas.
CONCLUSION
The results of present study were in concordant with those of the other domestic and foreign studies. Although aneuploidy can be observed in some benign tumors, DNA ploidy pattern is considered to be an important diagnostic and prognostic factors in malignant lesions of the various organs.