1. Carcinoma at a preclinical or preinvasive stage, detectable only by histologic examination.
2. A carcinoma that measures less than a certain size (for example, 1 cm) when first detected; maximum sizes, associated with a more favorable prognosis, vary with the type of tumor.
[micro- + carcinoma]
References in periodicals archive ?
1) In some cases, distinguishing CCH from medullary microcarcinoma can be difficult.
The 14 patients who had undergone a hemithyroidectomy without completion thyroidectomy had been treated that way because their preoperative histology had indicated a papillary microcarcinoma.
In the present study, the disruption of thyroid capsules [Figure 1], invasion of surrounding muscles or fat [Figure 2], and contact with the adjacent capsule of papillary thyroid microcarcinoma (PTMC) [Figure 3] were the characteristics of CI or ECE, according to the preoperative ultrasonographic findings.
The analysis included 70 patients with papillary thyroid microcarcinoma that underwent surgery at Split University Hospital Center between 1999 and 2001.
This has greatly improved the diagnosis and surgical treatment of papillary thyroid microcarcinoma (PTMC) [7-9].
In 15% of patients with a background of dysplasia, there was a development of microcarcinoma.
The Cleveland Clinic group has published a number of articles on TSHR mRNA testing in blood, which showed quite favorable results for a range of applications, which have included (i) the typical application, detection of residual/recurrent disease in treated patients (Tg mRNA was included in one study) (52,61), (ii) as an adjunct to cytopathology in the initial diagnosis of thyroid cancer (62,63), and (iii) risk stratification in patients with papillary microcarcinoma (61).
Debido a la alteracion genetica probable que le implicaria mayor riesgo de recaida a pesar de ser considerado microcarcinoma, se consensuo el beneficio de ablacion 30 mCi de [I.
Las mas conocidas son la clasica, la folicular, la folicular encapsulada, la solida y trabecular, la difusa esclerosante y la de celula alta y columnar y el microcarcinoma papilar [2].
A pesar de ello, algunos autores han propuesto estudiar los nodulos menores de un centimetro, los cuales se deben evaluar cuidadosamente porque la frecuencia en ellos de un microcarcinoma papilar va desde 2% hasta 36% de los casos (15-17), por lo que se deduce que no todos los pacientes tienen una lesion maligna subyacente ni requieren cirugia.
Increased incidence of papillary thyroid microcarcinoma with decreased tumour size of thyroid cancer.