Intra-abdominal desmoid tumors mimicking gastrointestinal stromal tumors — 8 cases: A case report

Table 2 Comparison between previous cases in the literatures and patients included in the present case series

	Previous cases1 (n = 27)	Present cases (n = 8)
Sex (Male : Female)	19:7 (one patient; unknown)	5:3
Age (yr) (median, range)	58 (34-74)	58.5 (40-72)
Primary GIST
Stomach	20	4
Small bowel	11	3
Peritoneum	2	0
Colon and rectum	0	1
Disease status following the occurrence of a new single lesion	62	8
Localized GIST	5	6
Metastatic GIST	1	2
Imatinib for GIST following the occurrence of a new single lesion	19	7
Interval time from surgical resection of GIST to the diagnosis of DT (yr)	2.5 (0.5-15.9)	1.8 (0.9-7.1)
Sites of DT
Stomach	1	-
Small bowel	5	-
Colon	1	-
Peritoneum/Mesentery	15	8
Others (liver and spleen)	2	-
Extra-abdominal organ3	3	-
Size of DT (cm) (median, range)	6.5 (1.6–17)4	2.6 (1.3-6.7)

¹Previous case reports[5-9] and cases with desmoid tumor after gastrointestinal stromal tumor [3].

²Available previous data (n = 6).

³Abdominal wall (n = 2) and thigh (n = 1).

⁴Available previous data (n = 6).

GIST: Gastrointestinal stromal tumor; DT: Desmoid tumor.