PMC4996609_01
CT scan with axial (A) and coronal (B) views showing an infiltrating mass in an atrophic left kidney. CT, computed tomography.
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He underwent CT imaging as part of the work-up to evaluate for a recurrent incisional hernia, which showed marked left renal atrophy and a 5.5 cm infiltrative left lower pole mass causing hydronephrosis (Fig. 1).
Gross nephroureterectomy specimen with follicular lymphoma (arrows) appearing as a tan-colored mass.
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Bisection of the kidney showed a dense infiltrative process involving the soft tissue of the hilum as well as the fat of the renal sinus (Fig. 2).
Renal pelvis with infiltrating follicular lymphoma invading into the submucosal connective tissue (A) and high-power view (400x) of extensive infiltration of lymphocytes (blue) within the renal pelvis connective tissue (B).
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Microscopic analysis of the 9 cm renal mass depicted a monomorphic lymphoid process (Figs. 3 and 4).
Invasion of follicular lymphoma into the renal parenchyma (A) and distal ureter (B).
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Microscopic analysis of the 9 cm renal mass depicted a monomorphic lymphoid process (Figs. 3 and 4).