case_images: PMC4038865_01
case_images: Magnetic resonance imaging scan showing an intramedullary well-circumscribed hemorrhagic lesion involving the spinal cord at the D9-D10 level, showing no significant postcontrast enhancement
case_images: AJNS-9-36-g001.jpg
case_images: PMC4038865_01_AJNS-9-36-g001.jpg
case_images: F1
case_images: Associated cord edema is seen from the D5 to the D12 level [Figure 1].
case_images: H and E, x40: Sheets and nests of cells with marked pigment deposition
case_images: AJNS-9-36-g002.jpg
case_images: PMC4038865_01_AJNS-9-36-g002.jpg
case_images: F2
case_images: On microscopic examination of the hematoxylin and eosin-stained slides, a lesion was seen showing sheets and nests of cells with marked pigment deposition [Figure 2].
case_images: H and E, x400: Cells with moderate cytoplasm and oval to elongated nuclei
case_images: AJNS-9-36-g003.jpg
case_images: PMC4038865_01_AJNS-9-36-g003.jpg
case_images: F3
case_images: It showed cells with moderate cytoplasm and oval to elongated nuclei [Figure 3].
case_images: Perl's stain x100: Negative for iron
case_images: AJNS-9-36-g004.jpg
case_images: PMC4038865_01_AJNS-9-36-g004.jpg
case_images: F4
case_images: Perl's stain for iron was negative [Figure 4].
case_images: HMB 45 x100: Positive
case_images: AJNS-9-36-g005.jpg
case_images: PMC4038865_01_AJNS-9-36-g005.jpg
case_images: F5
case_images: S-100 x100: Positive
case_images: AJNS-9-36-g006.jpg
case_images: PMC4038865_01_AJNS-9-36-g006.jpg
case_images: F6
case_images: EMA x100: Negative
case_images: AJNS-9-36-g007.jpg
case_images: PMC4038865_01_AJNS-9-36-g007.jpg
case_images: F7
case_images: Melan-A, while they were negative for CK, EMA [Figure 7], CD34 [Figure 8], GFAP and NSE. Mib-1 labeling index was less than 1% [Figure 9].
case_images: CD34 x100: Negative
case_images: AJNS-9-36-g008.jpg
case_images: PMC4038865_01_AJNS-9-36-g008.jpg
case_images: F8
case_images: Melan-A, while they were negative for CK, EMA [Figure 7], CD34 [Figure 8], GFAP and NSE. Mib-1 labeling index was less than 1% [Figure 9].
case_images: Ki-67 x100: Very low
case_images: AJNS-9-36-g009.jpg
case_images: PMC4038865_01_AJNS-9-36-g009.jpg
case_images: F9
case_images: Melan-A, while they were negative for CK, EMA [Figure 7], CD34 [Figure 8], GFAP and NSE. Mib-1 labeling index was less than 1% [Figure 9].