Encapsulated papillary carcinoma of the thyroid gland: Clincopathological and cytoflurometric study in comparison with non-encapsulated papillary carcinomy

Autor: Shinji Sakurai, Tsunehiro Ishida, Tetsunari Oyama, Takashi Nakajima, Atsuhiko Sakamoto, Takashi Joshita, Kaoru Ishii
Rok vydání: 1993
Předmět:
Zdroj: Pathology International. 43:516-521
ISSN: 1440-1827
1320-5463
DOI: 10.1111/j.1440-1827.1993.tb01165.x
Popis: Clinicopathological and cytofluorometric studies were performed on nine encapsulated (EPC) and 23 non-encapsulated (non-EPC) carcinomas of the thyroid gland. The average age of the patients with EPC was 33 years, which was significantly younger than that of those with non-EPC. The average tumor size of EPC was twice as large as that of intraglandular non-encapsulated carcinoma. All patients with EPC were alive without disease, but three out of 23 patients with non-EPC had a recurrence of the disease or died. Cytofluorometric studies showed that the mean nuclear DNA content and percentage of tumor cells in the S-G2M phase of EPC were lower than that of non-EPC. According to the DNA histogram pattern, all EPC showed distinct modal DNA values in the diploid or near diploid region of normal cells. However non-EPC, especially extra-glandular non-encapsulated papillary carcinoma, showed a wide variety of DNA histogram patterns. The present study suggested that EPC is a distinct subtype of papillary carcinoma of the thyroid gland clinicopathologically and that cytofluorometrically it is different from non-EPC.
Databáze: OpenAIRE