Table 1.

Frequency of metastasis to the thyroid gland in autopsy series

Study	No. thyroid metastases/no. of autopsies	%	Most frequent site of primary tumor
Müller8	11/623	1.8	Not available
Symmers9	7/298	2.3	Not available
Kitain10	14/452	3.1	Not available
Willis1	9/170	5.2	Breast
Rice11	9/89	10.1	Not available
Abrahms et al.12	19/1000	1.9	Breast
Thorpe13	4/200	2	Not available
Hull14	10/59	16.9	Lymphoid tissue
Mortensen et al.15	18/467	3.9	Lymphoid tissue
Shimaoka et al.7	188/1980	9.5	Breast
Brierre and Dickinson16	14/53	26.4	Not available
Silverberg and Vidone77	15/62	24.2	Lung
Berge and Lundberg51	201/16294	1.25	Breast
Watanabe and Tsuchiya18	4/309	1.29	Lung
Moghaddam et al.6	4/2117	0.46	Lung
Total (mean)	527/24173	2	Lung