PMC3634723_01
A, B: Brain CT scan shows an expansile bone lesion in the right frontal bone, invading the surrounding soft tissues. C: Chest CT scan shows a heterogeneous mass in the manubrium of the sternum composed of soft tissue and bone components.
can-7-311fig1.jpg
PMC3634723_01_can-7-311fig1.jpg
figure1
A brain CT scan showed an expansile bone lesion in the right frontal bone, invading the surrounding soft tissues (Figures 1A, B). Similarly, a chest CT scan showed a heterogeneous mass in the manubrium of the sternum composed of soft tissue and bone components, in favour of metastasis (Figure 1C).
A low-magnification (10x) pathology of the sternal mass showing fibromuscular tissue infiltrated with round tumour cells.
can-7-311fig2A.jpg
PMC3634723_01_can-7-311fig2A.jpg
figure2A
Histopathological examination revealed fibromuscular tissue infiltrated with round tumour cells with small to moderate amounts of cytoplasm and high mitotic activity accompanied by vascular invasion, which was consistent with a small round cell tumour with sarcomatous pattern (Figure 2A, B).
A high-magnification (40x) pathology shows round cells with small to moderate amounts of cytoplasm and high mitotic activity accompanied by vascular invasion.
can-7-311fig2B.jpg
PMC3634723_01_can-7-311fig2B.jpg
figure2B
Immunohistochemistry on the specimen of the sternal mass was performed, revealing negative results for WT-1 and positive results for CD-99 in favour of CCSK (Figures 3A, B).