PMC3970380_01
The preop CT scan showed a right cerebellar hypodens lesion.
CRIONM2014-968723.001.jpg
PMC3970380_01_CRIONM2014-968723.001.jpg
fig1
The preop CT scan showed a right cerebellar hypodense lesion with the dimension of 5 x 5 cm (Figure 1).
(a) Malign epithelial infiltration in the cerebellum with signet-ring cell morphology. HE x100. (b): Cell groups in the tumor show positive staining with cytoplasmic CK 7. CK7 x200. (c) Positive nuclear staining with TTF-1 in the signet-ring tumor cells. TTF-1 x200.
CRIONM2014-968723.002.jpg
PMC3970380_01_CRIONM2014-968723.002.jpg
fig2
The immunostaining with CK 20, ER, COX2, CK 14, CDX2, and MUC2 was negative. The histopathological morphology was shown Figures 2(a), 2(b), and 2(c).