Nivolumab-Induced, Late-Onset, Steroid-Sensitive, High-Grade Pneumonitis and Durable Tumor Suppression in Metastatic Renal Cell Carcinoma: A Case Report

Figure 6

(a) CT abdomen and pelvis w/ contrast; ~1.5 months post discontinuation of nivolumab with the following findings: arrow showing a heterogenous density lesion in the right retroperitoneal space unchanged from prior imaging (around time of acute pneumonitis occurrence). (b) CT abdomen and pelvis w/ contrast; ~4 months post discontinuation of nivolumab with the following findings: arrow showing a soft tissue lesion posterior to inferior vena cava, stable in size. (c) CT abdomen and pelvis w/ contrast; ~9 months post discontinuation of nivolumab with the following findings: arrow showing a soft tissue lesion posterior to inferior vena cava, stable in size. Of note, supra renal inferior vena cava tumor thrombus was noted measuring . (d) CT abdomen and pelvis w/ contrast; ~18 months post discontinuation of nivolumab with the following findings: arrow showing a soft tissue lesion posterior to inferior vena cava, stable in size. The supra renal inferior vena cava tumor thrombus measured at 2.1 × 1.4 cm, improved from prior imaging.

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