Case ID: 498

Publication date: 08 Jan, 2016

Consensus grade: I would not grade this tumor

User Diagnosis Difficulty Comment
Pathologist 1 I would not grade this tumor Borderline higher
Pathologist 2 I would not grade this tumor Borderline higher
Pathologist 3 I would not grade this tumor Typical
Pathologist 4 I would not grade this tumor Typical
Pathologist 5 I would not grade this tumor Typical
Pathologist 6 I would not grade this tumor Typical
Pathologist 7 I would not grade this tumor Typical
Pathologist 8 I would not grade this tumor Borderline higher

oncocytoma?

Pathologist 9 I would not grade this tumor Typical
Pathologist 10 I would not grade this tumor Borderline higher
Pathologist 11 I would not grade this tumor Typical
Pathologist 12 I would not grade this tumor Typical
Pathologist 13 I would not grade this tumor Typical
Pathologist 14 I would not grade this tumor Typical
Pathologist 15 I would not grade this tumor Typical
Pathologist 16 I would not grade this tumor Typical
Pathologist 17 WHO/ISUP grade 2 Borderline higher

not sure what this tumor is



Case description (by case creator):

Kidney tumor, 65-year-old female. Tumor located in pole, size 6 x 5.5 x 6.7 cm, yellow color.
Tumor is solid, solid-alveolar with abundant stroma. Cells are relative small with oncocytic scant cytoplasm and irregular nuclei. Islet of cells are surounded by distinct basal membrane. Pseudorosettes are present focally.
Dg: Renal oncocytoma-small cell variant with pseudorosettes