Prognostic Factors of Papillary and Follicular Carcinomas in Japan Based on Data of Kuma Hospital

Table 1

Prevalence of conventional and various histologic variants in 1521 papillary carcinomas.

Conventional	86%
Follicular variant	7%
Tall cell variant	4%
Oncocytic variant	2%
Columnar cell variant	0.4%
Macrofollicular variant	0.3%
Diffuse sclerosing variant	0.3%
Cribriform morular variant	0.1%
Others	0.1%