PMC5705795_01
A) Coronal and B) Axial CT sections of large bladder tumour C) Axial CT Section of hepatic mass.
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RNA/ml. Radiological examination of the pelvis showed a 7.0 x 5.0 cm mass involving the bladder neck and vaginal wall (Fig. 1A-C).
A) Low power view showing a cellular spindle cell lesion with shortm staghorn-type vessels in the background. B) Medium power view showing short fascilles and scattered lymphoplasmacytic cells. C) So-called 'primitive round cells' characteristic of this lesion were evident in a subsequent transurethral bladder resection.
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There were scattered aggregates of lymphoplasmacytic cells together with thin walled, ectatic staghorn-type vessels (Fig. 2A-C).
A) Neoplastic cells show diffuse and strong positive staining for SMA. H-caldesmon was similarly positive. B) Desmin is negative. C) EBER-ISH is diffusely positive.
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EBER-ISH was positive in most neoplastic cells. (Fig. 3A-C).