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Click 22 years old man with giant left buttock keloid. MRI of the left buttock showing a large iso-hypointense mammilliform lesion extending in cranio-caudal direction and covering the adjacent local irregular fat profile. Protocol: Philips Gyroscan 1T: Sagittal T1-SE, Thickness: 6.0/0.6, FOV: 450/1.2, NSA2: 205/256.

Click 22 years old man with giant left buttock keloid. MRI of the left buttock showing a large hypointense mammilliform lesion with hyperintense cystic/colliquative necrotic areas inside, covering the adjacent local irregular fat profile and surrounding the anal orifice. Protocol: Philips Gyroscan 1T: sagittal T2-TSE, Thickness: 7.0/0.6, FOV: 470/1.2, NSA 6: 195/256.

Click 22 years old man with giant left buttock keloid. MRI shows an intense and heterogeneous signal with colliquative necrotic areas inside the lesion. Protocol: Philips Gyroscan 1T: axial T1-weighted MR fat sat (SPIR), Thickness: 10/1.0, FOV: 380/1.2, NSA 2: 179/256.

Click 22 years old man with giant left buttock keloid. MRI shows an intense and heterogeneous contrast enhancement of the mammilliform lesion, irregular enhancement of adjacent fat and colliquative necrotic areas inside the lesion. Protocol: Philips Gyroscan 1T: axial T1-weighted MR fat sat (SPIR) after intravenous gadolinium administration (20 ml Omniscan 0,5 mmol/ml), Thickness: 15/1.0, FOV: 400/1.1, NSA 2: 179/256.

Click 22 years old man with giant left buttock keloid. MRI shows an intense and heterogeneous contrast enhancement with hypointense colliquative necrotic areas inside the lesion and irregularity of fat profile. Protocol: Philips Gyroscan 1T: sagittal T1-weighted MR fat sat image after intravenous gadolinium administration (20 ml Omniscan 0,5 mmol/ml), Thickness: 12/1.0, FOV: 470/1.1, NSA 2: 179/256.