## Background: Experimental evidence suggests that tumor growth beyond a certain size and tumor ability to metastasize depend on the degree to which the tumor can stimulate an angiogenic response. ## Methods: Fifteen thyroid specimens of microinvasive follicular carcinoma were examined for vascul
Morphometry in the cytologic evaluation of thyroid follicular lesions
β Scribed by Nagashima, Takeshi ;Suzuki, Masato ;Oshida, Masaki ;Hashimoto, Hideyuki ;Yagata, Hiroshi ;Shishikura, Tomotane ;Koda, Keiji ;Nakajima, Nobuyuki
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 93 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0008-543X
No coin nor oath required. For personal study only.
β¦ Synopsis
Using a microscope connected to a computerized video system, the mean nuclear Keiji Koda, M.D. area, the mean nuclear perimeter, the circular rate, the largest to the smallest Nobuyuki Nakajima, M.D.
dimension ratio (LS ratio) of the nuclei, and the coefficient of variation of the nuclear area (NACV) were measured and analyzed. The First Department of Surgery, Chiba Univer-RESULTS. Among the quantitative morphometric parameters of nuclei, the circular sity School of Medicine, Chiba, Japan.
rate was significantly higher in the group with adenomatous goiters than those with follicular carcinomas (P Γ΅ 0.00001) and adenomas (P Γ΅ 0.005). The group with follicular carcinomas had a higher LS ratio than the group with adenomatous goiters (P Γ΅ 0.0005). The NACV value increased as the malignant potential of the lesion increased and showed significant differences between the groups. When a NACV of 21.5% was chosen as the cutoff point, the incidence of malignancy was significantly higher in patients with high NACV values than in those with low NACV values (P Γ΅ 0.00001). Using this borderline value, it was possible to distinguish malignant from benign diseases with a sensitivity of 85.0%, a specificity of 82.5%, and an accuracy of 83.3%.
π SIMILAR VOLUMES
Sixteen consecutive patients who had carcinoma of the breast and who had preoperative xeromammography were evaluated and classified according to Wolfe's classification. Five of the patients had correct preoperative evaluation by mammography, and 11 had false negatives. Eight of these were in patient
The PTEN (MMAC1/TEP1) tumor suppressor gene was recently isolated and mapped to human chromosome band 10q23. Homozygous deletions and mutations of PTEN were observed in cell lines and sporadic cancers of the breast, kidney, and central nervous system. Germline mutations in PTEN were recently found i
The scoring system developed by Mair et al. (Acta Cytol 1989;33: 809-813) is frequently used to grade the quality of cytology smears. Using a one-factor analytic structural equations model, we demonstrate that the errors in measurement of the parameters used in the Mair scoring system are highly and