PMC8247681_01
Emergency 3D-CT scan showing occipital fistula (blue arrow).
SNI-12-282-g001.jpg
PMC8247681_01_SNI-12-282-g001.jpg
F1
Emergency CT scan [Figure 1; blue arrow] and brain MRI [Figure 2] showed a cystic infratentorial mass with ring enhancement of the cystic walls.
Mid-sagittal MRI showing a cystic subtentorial mass with ring enhancement of the cystic walls.
SNI-12-282-g002.jpg
PMC8247681_01_SNI-12-282-g002.jpg
F2
Emergency CT scan [Figure 1; blue arrow] and brain MRI [Figure 2] showed a cystic infratentorial mass with ring enhancement of the cystic walls.
Preoperative evidence of non-purulent subcutaneous nodule with skin fistula.
SNI-12-282-g003.jpg
PMC8247681_01_SNI-12-282-g003.jpg
F3
During preparation for surgery, a 5 mm non-purulent subcutaneous nodule with skin fistula was seen [Figure 3].
Excision of the entire abscess capsule.
SNI-12-282-g004.jpg
PMC8247681_01_SNI-12-282-g004.jpg
F4
The cerebellar abscess was evacuated, followed by excision of the entire capsule [Figure 4].
Evidence of cystic adhesion to dura and confluence of sinuses.
SNI-12-282-g005.jpg
PMC8247681_01_SNI-12-282-g005.jpg
F5
The cyst was adherent to the dura and to the confluence of sinuses [Figure 5].
Histological examination confirmed the diagnosis of dermoid tumor.
SNI-12-282-g006.jpg
PMC8247681_01_SNI-12-282-g006.jpg
F6
Histological examination confirmed the diagnosis of dermoid tumor [Figure 6].
No signs of recurrence at 36 months follow-up evaluation.
SNI-12-282-g007.jpg
PMC8247681_01_SNI-12-282-g007.jpg
F7
At a 36-month follow-up, there was no evidence of recurrence [Figure 7].