| Case | Reference | Age (years)/gender | Clinical presentation | Location | Size (cm) | Previous malignancy | Follow-up |
| 1 | Jung et al. [3] | 32/F | Incidental | Right kidney, mid-pole + lower pole | 11.8 | nd | 6 months, ANED | 2 | Sterlacci et al. [4] | 29/F | Incidental | Left kidney, mid-pole | 5.0 | nd | 60 months, ANEDa | 3 | He et al. [5] | 22/F | Painless hematuria | Left kidney | 8.0 | nd | nd | 4 | Amin et al. [6] | 53/F | Incidental | Right kidney, mid-pole | 2.1 | Primary osteosarcoma of rib, s/p chemotherapy | 54 months, ANED | 5 | Amin et al. [6] | 29/F | Incidental | Right kidney, upper pole | 1.9 | nd | 84 months, ANED | 6 | Amin et al. [6] | 45/M | Incidental | Right kidney, lower pole | 3.5 | nd | 17 months, ANED, then lost to follow-upb | 7 | Amin et al. [6] | 83/M | Incidental | Left kidney, lower pole | 2.1 | Primary colonic adenocarcinoma, s/p chemotherapy | 48 months, ANED | 8 | Amin et al. [6] | 35/M | Incidental | Right kidney, mid-pole | 3.0 | nd | 20 months, ANED | 9 | Amin et al. [6] | 50/M | Incidental | Right kidney, mid-pole | 4.0 | nd | 7 months, ANED | 10 | Xu and Zang [7] | 36/F | Hematuria | Left kidney, mid-pole + lower pole | 10.0 | nd | 12 months, ANED | 11 | Dhillon et al. [8] | 34/F | Flank pain, gross hematuria | Right kidney, mid-pole | 6.2 | nd | 3 monthsc | 12 | Khoja et al. [9] | 31/F | Flank pain, gross hematuria, weight loss | Left kidney, upper-mid-pole | 4.0 | nd | 21 months, ANED | 13 | Alessandrini et al. [10] | 76/M | Gross hematuria | Left kidney, upper pole | 4.5 | Prostatic adenocarcinoma at age 71 y, s/p radical prostatectomy and adjuvant radiotherapy | 11 months, ANED | 14 | Alessandrini et al. [10] | 41/F | Incidental | Right kidney, lower pole | 4.3 | Hodgkin lymphoma, s/p splenectomy and chemoradiotherapy | 4 months, ANED | 15 | Dhillon et al. [11] | 34/M | Flank pain | Left kidney | 2.8 | nd | nd | 16 | Malde et al. [12] | 29/F | Abdominal pain | Left kidney, lower pole | 6.5 | nd | 4 months, ANED | 17 | Wu et al. [13] | 26/F | Incidental | Right kidney | 4.0 | nd | nd | 18 |
Wu et al. [14],Wu [15] | 25/F | Hypertension | Right kidney, upper pole | 2.5 | nd | 18 months, ANED | 19 | Li et al. [16], Lin et al. [21] | 65/M | Hematuria, flank pain | Right kidney, mid-lower pole | 8.0 | nd | 15 months, ANED | 20 | Tang et al. [17] | 66/M | Gross hematuria, flank pain | Right kidney | 16.0 | nd | 20 months, ANED | 21 | Berens et al. [18] | 58/M | Incidental autopsy finding | Left kidney | 3.0 | Acute myeloid leukemia + prostatic adenocarcinoma | Diedd | 22 |
Volavšek et al. [19] | 34/M | Abdominal pain | Left kidney, lower pole | 5.5 | nd | 6 months, ANED | 23 | Vicens et al. [20] | 34/F | Gross hematuria, flank pain | Right kidney, interpolar | 6.2 | nd | ASDe | 24 | Lin et al. [21] | 59/M | Incidental | Right kidney, mid-lower pole | 6.0 | nd | 1 month, ANED | 25 | Current case | 19/F | Abdominal pain | Right kidney, lower pole | 2.0 | Acute T-lymphoblastic leukemia at age 5 y, s/p chemotherapy | 21 months, ANED |
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