Distant Metastases from Thyroid Carcinomas

1967 ◽  
Vol 53 (2) ◽  
pp. 141-148 ◽  
Author(s):  
Natale Cascinelli ◽  
Cesare Bartoli ◽  
Maurizio Turm

From 1928 to 1965, 383 cases of thyroid carcinoma were studied at the National Cancer Institute of Milan; among these cases 113 had distant metastases. The metastases were more frequent in patients aged fro 60 to 69. The female/male ratio was about 2:1. The lesions were more often in the skeleton (74 cases) and in the lungs (64 cases). Since a high incidence of skeletal metastases without lung involvement has been observed, the authors postulate that metastatic spread from thyroid carcinoma may occur also through vertebral veins. In undifferentiated carcinomas distant metastases occur quite early (87 % at 5 years). On the contrary, in differentiated carcinomas, metastases occur later: after 5 years from thyroidectomy in 31 per cent of patients with follicular carcinomas metastases were found and in 74 per cent after 10 years. In papillary carcinomas the percentage is 17 and 52 after 5 and 10 years respectively. Among 113 cases with distant metastases, 50 showed the first metastatic localization to the regional lymph nodes; this occurrence was found to be more frequent in papillary and unidifferentiated carcinomas (χ2 = 11.805).

Surgery Today ◽  
1995 ◽  
Vol 25 (4) ◽  
pp. 324-328 ◽  
Author(s):  
Kiminori Sugino ◽  
Yoshio Kure ◽  
Hiroyuki Iwasaki ◽  
Osamu Ozaki ◽  
Takashi Mimura ◽  
...  

2021 ◽  
Vol 11 ◽  
Author(s):  
Itai Margulis ◽  
Inna Naroditsky ◽  
Miriam Gross-Cohen ◽  
Neta Ilan ◽  
Israel Vlodavsky ◽  
...  

Activity of the endo-beta-glucuronidase heparanase, capable of cleaving heparan sulfate (HS), is most often elevated in many types of tumors, associating with increased tumor metastasis and decreased patients’ survival. Heparanase is therefore considered to be a valid drug target, and heparanase inhibitors are being evaluated clinically in cancer patients. Heparanase 2 (Hpa2) is a close homolog of heparanase that gained very little attention, likely because it lacks HS-degrading activity typical of heparanase. The role of Hpa2 in cancer was not examined in detail. In head and neck cancer, high levels of Hpa2 are associated with decreased tumor cell dissemination to regional lymph nodes and prolonged patients’ survival, suggesting that Hpa2 functions to attenuate tumor growth. Here, we examined the role of Hpa2 in normal thyroid tissue and in benign thyroid tumor, non-metastatic, and metastatic papillary thyroid carcinoma (PTC) utilizing immunostaining in correlation with clinicopathological parameters. Interestingly, we found that Hpa2 staining intensity does not significantly change in the transition from normal thyroid gland to benign, non-metastatic, or metastatic thyroid carcinoma. Remarkably, we observed that in some biopsies, Hpa2 is accumulating on the membrane (envelop) of the nucleus and termed this cellular localization NM (nuclear membrane). Notably, NM localization of Hpa2 occurred primarily in metastatic PTC and was associated with an increased number of positive (metastatic) lymph nodes collected at surgery. These results describe for the first time unrecognized localization of Hpa2 to the nuclear membrane, implying that in PTC, Hpa2 functions to promote tumor metastasis.


1997 ◽  
Vol 44 (5) ◽  
pp. 697-700 ◽  
Author(s):  
MAKOTO KOMATSU ◽  
NOBUO ITOH ◽  
MASANOBU YAZAWA ◽  
SHINYA KOBAYASHI ◽  
KAZUAKI INOUE ◽  
...  

1990 ◽  
Vol 4 (9) ◽  
pp. 537-541 ◽  
Author(s):  
TL Tio ◽  
PPLO Coene

Transreccal endosonography was performed preoperatively in 58 patients with rectal carcinoma. The results of endosonography were compared to the histology of resected specimens according to the new (1987) TNM (tumour, nodes, metastases) classification. Endosonography was accurate in the staging of tumour categories except with T2 carcinomas because of concomitant peritoneal abscesses, inflammation or tissue changes after irradiation therapy. The overall accuracy of endosonography was 81 %. Overstaging occurred in 17% and understaging in 2%. The accuracy of endosonography for staging regional lymph nodes was 74%, sensitivity was 95% and specificity 61 %. Endosonography was not accurate in the staging of distant metastases due to the limited penetration depth of ultrasound used. In conclusion, endosonography will become the standard for staging rectal carcinoma.


THE BULLETIN ◽  
2021 ◽  
Vol 3 (391) ◽  
pp. 33-39
Author(s):  
G.P. Dyulger ◽  
P.G. Dyulger ◽  
O. Alikhanov ◽  
E.S. Latynina ◽  
D.A. Baimukanov

The paper provides an overview of the classification and diagnosis of feline mammary tumors (FMT) in cats. The clinical stage of neoplastic process is one of the driving prognostic factors. In accordance with the WHO recommendations 1980, it is determined by the TNM system: the size of neoplasm, the state of regional lymph nodes and the presence/absence of distant metastases. The clinical stage of the disease is defined based on the obtained data during the examination, surgery and study of the postoperative material (excised tumor, the edges of the resection and regional lymph nodes). It was found that tumors larger than 3 cm have a significantly worse prognosis than tumors smaller than 3 cm. The median survival with a tumor size of less than 3 cm is 1.75 times greater (21 months versus 12 months) than with a tumor size of more than 3 cm. The most significant morphological prognostic factor is the histological type of malignant tumor and the histological gradation of tumor tissue. Among carcinomas, the most invasive are micropapillary, solid and cribriform carcinomas, the most unaggressive is carcinoma in situ. Adverse prognostic factors of mammary cancer in cats are a high Ki67 index of proliferative activity, hyperexpression of Her-2 epidermal growth factor, cyclooxygenase-2, absence or low level of expression of receptors to estrogen and/or progesterone by tumor cells (less than 10%), as well as a high level of expression by tumor cells of VEGF (vascular endothelial growth factor).


2018 ◽  
Vol 5 (10) ◽  
pp. 3425 ◽  
Author(s):  
Jayan Stephen ◽  
Mebin B. Thomas ◽  
Mathew B. Thomas

Papillary thyroid cancer is the most common thyroid malignancy, and although metastatic spread is typically confined to regional lymph nodes, there are rare documented cases of distant spread of disease. Distant metastases of differentiated thyroid cancer are unusual; lung and bones are the most frequently affected sites. Soft tissue metastases are extremely rare. Here we present an unusual case of soft tissue metastasis of papillary thyroid cancer to skeletal muscle. Soft tissue metastasis is rarely seen in differentiated thyroid carcinoma. Differentiated thyroid carcinoma, although generally clinically indolent, may occasionally develop distant metastases and even manifest itself as a metastatic tumour.


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