PMC3396865_01
Microscopic appearance of the rectal stromal tumour composed of spindle cells
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The anatomopathological study showed morphological and immunohistochemical aspects, suggesting a spindle cell GIST (Figure 1).
PMC3396865_02
Pelvic CT scan showing the rectal lesion
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This examination provided an objective view of the lesion, showing a rectal tissue tumour of 8 cm in diameter, located on the posterior wall and showing an infiltration of presacral fat, but without bone involvement (Figure 2).