PMC4223121_01
The tumour in gastroscopy. There is ulceration in the middle of the tumour
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The diameter of first tumour was about 3 cm, the second about 2 cm, and part of the ulceration was covert due to normal looking mucosa (Figure 1).
EUS examination. Soft, hyperechogenic, homogenous mass with hypoechogenic border
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Under the pressure of the endoscope head this change was flattened out to prevent assessment of the layer from which it originated (Figure 2).
Histological examination shows spindle- shaped cells with elongated nuclei set in fibromyxoid stroma. H + E, 10x
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A histological examination made after the surgery revealed a gastric tumour, immunohistochemically differentiated as a neurofibroma (Figure 3).
S-100 20x. Immunohistochemical staining: tumour cells are positive for S-100 protein
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Tumour cells are strongly positive to S-100 protein (Figure 4).