PMC3667460_01
CECT of brain showing right parietal parasagittal metastatic tumor
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F1
Contrast enhanced computed tomography (CECT) of the brain revealed enhanced hyperdense solitary right parietal parasagittal tumor [Figure 1].
(a) MRI of cervico-dorsal spine demonstrating C6-D2 spinal tumor with dumbbell like extension into upper thorax; (b) MRI axial images demonstrating spinal tumor at D-1 extending outside
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F2
In April 2003, she was diagnosed to have primary spinal PNET at C6-D2 level with dumbell like extension into the thoracic cavity [Figures 2a and b].
PET scan five years after surgery for spinal PNET showing no evidence of recurrence/metastasis
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F3
Positron emission tomography (PET) scan done 5 years after the treatment for spinal PNET, in December 2008 revealed no residual lesion or metastasis [Figure 3].
(a) Histopathology showing densely cellular tumor arranged in sheets and lobules with minimal intervening stroma; (b) Immunohistochemistry showing membranous positivity for CD99
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F4
Histopathological examination revealed a densely cellular infiltrate of loosely cohesive, mitotically active cells arranged in sheets and lobules with minimal intervening stroma [Figure 4a]. IHC stains for tumor cells showed membranous positivity for CD99 [Figure 4b].
Post-operative CECT brain at nine months after surgery showing no evidence of tumor
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F5
CECT scan of brain was done nine months after surgery; it showed no residual or recurrent disease [Figure 5].