PMC10344895_01
CT image of the patient's abdomen before the removal of the kidney allograft. Massive tumor conglomerate in the abdominal cavity (the red line delineates the tumor)
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fig1
Computer tomography (CT) scan detected an enlarged transplanted kidney in the pelvic region on the left, and a bulky lesion of 8 cm x 7 cm was found in its parenchyma (Figure 1).
Histopathological slide of the tissue of the transplanted kidney subtotally replaced by the undifferentiated cells with small foci of recognizable clear cell renal cell carcinoma. There is a necrotic area in the upper right part of the image. Hematoxylin-eosin staining, x60
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fig2
Taking into account these findings, the tumor was conceivably defined as a clear cell renal cell carcinoma Grade 4 [classification of World Health Organization/ International Society of Urological Pathology (WHO/ISUP)] (Figure 2).
PMC10344895_02
PMC10344895_03
CT images of the patient's lungs fourteen days after the operation. MTS in the lungs (yellow arrows point at the mts)
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fig3
CT images of the patient's lungs four months after the removal of the kidney allograft: complete regression of several tumor foci and the decrease of the remaining MTS in the lungs
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fig4
Four months later, the CT scan showed an essential positive trend as compared with that of the previous examination (Figure 4).
CT image of the patient's abdomen 6 months after removal of the kidney allograft: complete regression of the lesion in the abdominal cavity
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fig5
Further tumor regression was observed in the follow-up examinations, and complete regression of the tumor foci was registered 6 months after the operation (Figure 5).