Gastrointestinal Stromal Tumor (GIST) and Synchronous Intra-Abdominal Liposarcoma: A Report of Two Rare Cases and Literature Review

Table 1

Main clinical characteristics and histopathological features.

Author (year)	Gender	Age	Location		Size (cm)		Risk stratification/grade		Adjuvant treatment	Follow-up (months)
			GIST	Liposarcoma	GIST	Liposarcoma	GIST	Liposarcoma
Kang et al. (2013) [8]	F	46	Stomach	Retroperitoneum	6.5	3	High	G2	Radiochemotherapy	Disease-free (72 months)
Sonoda et al. (2014) [9]	F	55	Jejunum	Mesentery	1	3.5	None	G1	No	Disease-free (2 months)
Tepetes et al. (2018) [7]	M	56	Stomach	Retroperitoneum and mesentery	2.5	5 and 25	Very low	NA	Radiotherapy	Disease-free (15 months)
Diamantis et al. (2020)	M	86	Stomach	Stomach	1.1	5.5	None	G1	No	Disease-free (60 months)
Diamantis et al. (2021)	M	66	Stomach	Retroperitoneum	4	5.9	Very low	G1	Chemotherapy	Deceased (13 months)

NA: nonavailable.