Table 1.

Characteristics of superficial and deep fibromatoses. The overall incidence of deep fibromatosis is two to four individuals per million each year.

	Superficial fibromatosis			Deep fibromatosis
Characteristics	Palmar	Plantar	Abdominal wall	Intraabdominal (mesenteric)	Extraabdominal
Recurrence rate	30% to 40%	20% to 40%	15% to 30%	23% overall (90% Gardeners)	19% to 77%
Age	Often >65 years of age	3rd to 5th decade	20 to 30 years of age	Average 41 years of age	Peak 25 to 30-years-of-age
Sex	80% male	66% male	87% female	55% male	female predilection
Incidence	1% to 2% of population	0.23% of population	49% of deep fibromatoses	8% of deep fibromatoses	43% of deep fibromatoses
Association with Gardners	No	No	Yes	Yes with mesenteric subtype	Yes