PMC6882683_01
Abdominal ultrasound showing a 6 cm right-sided ovarian mass that was consistent with teratoma (
A
). To better characterize the mass, an abdominal magnetic resonance imaging was performed and the initial diagnosis was confirmed (
B, C
). Laparoscopic view of the mass (
D
).
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FI180427cr-1
The child complained of recurrent abdominal pain and dysuria for 1 month; an abdominal ultrasound and magnetic resonance imaging (MRI) showed a 6 cm right-sided ovarian mass that was suspected to be a teratoma ( Fig. 1A-C ). However, no ovarian mass was found, but an 8-cm exophytic lesion was discovered, arising from the retroperitoneum, on the right side of the pelvis, adjacent to the bladder with multiple adhesions with the ascending colon and the uterus ( Fig. 1D ).
Lipoblastoma histology: multilobulated soft tissue lesion comprising groups of peripherally lipoblast that are separated by fibrous septa and a distinct peripheral pseudocapsule was typical of all cases. Hemosiderin staining and chronic inflammation with extensive liponecrosis were present in patient 1(
A
,
B
) and signs of vascular congestion were present in patient 2 (
C
,
D
). Hemosiderin staining and chronic inflammation were particularly represented in patient 3 (
E
,
F
).
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PMC6882683_03_10-1055-s-0039-1694060-i180427cr-2.jpg
FI180427cr-2
Histology revealed a lipoblastoma with chronic inflammation ( Fig. 2E, F ). 
PMC6882683_02
Lipoblastoma histology: multilobulated soft tissue lesion comprising groups of peripherally lipoblast that are separated by fibrous septa and a distinct peripheral pseudocapsule was typical of all cases. Hemosiderin staining and chronic inflammation with extensive liponecrosis were present in patient 1(
A
,
B
) and signs of vascular congestion were present in patient 2 (
C
,
D
). Hemosiderin staining and chronic inflammation were particularly represented in patient 3 (
E
,
F
).
10-1055-s-0039-1694060-i180427cr-2.jpg
PMC6882683_03_10-1055-s-0039-1694060-i180427cr-2.jpg
FI180427cr-2
Histology revealed a lipoblastoma with chronic inflammation ( Fig. 2E, F ). 
Abdominal ultrasound confirming the intussusception (
A, B
). Water-soluble contrast enema was performed but the result was ineffective (
C
); hence, the patient underwent a surgical exploration (
D
).
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FI180427cr-3
 On abdominal ultrasound, an ileocecal intussusception was confirmed ( Fig. 3A, B ). Water-soluble contrast enema was performed but was ineffective ( Fig. 3C ); hence, the patient underwent surgical exploration via transverse right-sided supraumbilical laparotomy ( Fig. 3D ).
PMC6882683_03
Lipoblastoma histology: multilobulated soft tissue lesion comprising groups of peripherally lipoblast that are separated by fibrous septa and a distinct peripheral pseudocapsule was typical of all cases. Hemosiderin staining and chronic inflammation with extensive liponecrosis were present in patient 1(
A
,
B
) and signs of vascular congestion were present in patient 2 (
C
,
D
). Hemosiderin staining and chronic inflammation were particularly represented in patient 3 (
E
,
F
).
10-1055-s-0039-1694060-i180427cr-2.jpg
PMC6882683_03_10-1055-s-0039-1694060-i180427cr-2.jpg
FI180427cr-2
Histology revealed a lipoblastoma with chronic inflammation ( Fig. 2E, F ). 
Magnetic resonance imaging showed a multilobulated epifascial lesion measuring 8 x 6 cm in the context of the gluteal muscle that deepened in the pelvis (
A
-
C
). Complete surgical excision was achieved via a posterior-sagittal approach (
D
).
10-1055-s-0039-1694060-i180427cr-4.jpg
PMC6882683_03_10-1055-s-0039-1694060-i180427cr-4.jpg
FI180427cr-4
MRI showed a multilobulated epifascial lesion measuring 8 x 6 cm, in the context of the gluteal muscle extending to the pelvis ( Fig. 4A-C ). Intraoperatively, an encapsulated multilobulated subcutaneous fatty tumor was discovered ( Fig. 4D ).