Table 1.

Baseline characteristics of the study group

	All patients	Sporadic forms (n = 10; 52.7 %)	Hereditary forms (n = 9; 47.3 %)	p a
Age at diagnosis (years)	41.2 ± 12.5	37.8 ± 11.8	44.2 ± 13	NS
Male/female (n)	6/13	4/6	2/7	NS
Local disease (n, %)	14 (73.7)	6 (60)	8 (88.9)	NS
Disseminated disease (n, %)	5 (26.3)	4 (40)	1 (11.1)
RET mutation	7/11	0/4	7/7	0.003

NS not significant

^a p between sporadic and hereditary forms