Table 1.

Summary of all case reports describing retroperitoneal lipomas resected in adults

Ref.	Age	Sex	Symptoms	Imaging methods	Tumor size (cm)	Tumor weight	Follow-up
Cattell et al[22], 1947	55	Female			10 cm in diameter
Cattell et al[22], 1947	61	Female	Epigastric distress and bloating			12700 g
Deppe et al[21], 1985	24	Female		Barium enema, CT	11 × 8 × 3	NA
Zhang et al[20], 1987	65	Male	Weight gain, leg edema	NA	50 cm in diameter	19500 g	4 yr
Acheson et al[19], 1997	76	Female	Swollen leg	CT, MRI	20 × 20× 12	576 g
Matsubara et al[18], 2000	65	Male		NA	12 × 13	NA
Marshall et al[17], 2001	47	Male		CT	NA	4990 g
Forte et al[15], 2002	61	Male	Urinary frequency, urgency and nocturia	CT
Foa et al[16], 2002	52	Male			10.5 × 9.5 × 2	145 g
Raftopoulos et al[14], 2002	62	Male	Abdominal pain	CT	20 × 15 × 10	790 g
Martinez et al[12], 2003	32	Female	Abdominal pain	US, barium enema	20 × 13 × 10	3400 g	17 yr
Drop et al[13], 2003	60	Female	Abdominal pain, gastrointestinal symptoms	US, CT	13 × 12
Drop et al[13], 2003	72	Female	Abdominal pain, sickness	US, CT	12 × 9 × 4
Ida et al[11], 2008	65	Male	Painless swelling in left inguinal region		22 × 14 × 5		18 mo
Ukita et al[10], 2009	61	Female	Gluteal pain	MRI	25 × 15
Singh et al[9], 2011	65	Male	Inguinal pain		15.6 cm in diameter	NA
Chander et al[8], 2012	36	Female			13.6 × 11.2 × 9.1	1300 g
Wei et al[6], 2013	25	Female		US	20 × 12 × 10	1650 g	6 mo
Saito et al[7], 2013	65	Male	Flank pain	US, CT	30 cm in diameter	NA
Weniger et al[5], 2015	73	Female	Abdominal swelling, pain, and obstipation	CT	55 × 40 × 10	8950 g
Al-Ali et al[4], 2019	34	Female	Abdominal distention and back pain	US, CT	45 × 48 × 13	1200 g	6 mo
Mitchell et al[3], 2020	29	Female	Abdominal pain, distention, orthopnea	MRI	28 × 14 × 6

CT: Computerized tomography; MRI: Magnetic resonance imaging; US: Ultrasonography; NA: Not available.