SECTION IV - KEY TO SLIDES

Renal Tumors and Tumor-like Conditions
John N. Eble, M.D. & Stephan Storkel, M.D.

Click on thumbnail images of slide for an enlarged view.
Click on case number for case discussion.

  Case 1 - Wilms' Tumor

Slide 1 - Blastema, stroma, and epithelium, low magnification

Slide 2 - Epithelium and blastema surrounded by stroma with scattered cells with skeletal muscle differentiation, high magnification

  Case 2 - Mesoblastic Nephroma

Slide 3 - Cellular mesoblastic nephroma, low magnification

Slide 4 - Mesoblastic nephroma surrounding entrapped renal tubule, high power

  Case 3 - Clear Cell Renal Cell Carcinoma

Slide 5 - Compact architecture with small cysts, low magnification

Slide 6 - Cells with eosinophilic cytoplasm, high magnification

  Case 4 - Chromophil (papillary) Renal Cell Carcinoma

Slide 7 - Papillae with psammoma bodies and stromal foam cells, low magnification

Slide 8 - Grade 2 nuclei

  Case 5 - Chromophobe Renal Cell Carcinoma

Slide 9 - Classic type, low magnification

Slide 10 - Classic type, high magnification

  Case 6 - Collecting Duct Carcinoma

Slide 11 - Irregular tubules and nests in desmoplastic stroma, low magnification

Slide 12 - Short papillae and hobnail cells, high magnification

  Case 7 - Renal Cell Carcinoma, Unclassified

Slide 13 - Short papillae and unclassifiable round cells, low magnification

Slide 14 - Mixture of Wilms'-like epithelium, papillary carcinoma, and high grade carcinoma, high magnification

  Case 8 - Carcinoid

Slide 15 - Ribbons and solid architecture, low magnification

Slide 16 - Ribbon architecture, high magnification

  Case 9 - Metanephric Adenoma

Slide 17 - Small tubules lined by uniform epithelium, low magnification

Slide 18 - Tubules lined by epithelium with little cytoplasm, high magnification

  Case 10 - Epithelioid Angiomyolipoma

Slide 19 - Epithelioid cells of variable size, low magnification

Slide 20 - Large ganglion cell-like and multinucleate giant cells, high magnification

  Case 11 - Cystic Nephroma

Slide 21 - Delicate fibrous septa, low magnification

Slide 22 - Cysts lined by flattened epithelial cells, high magnification

  Case 12 - Sarcomatoid Urothelial Carcinoma of Renal Pelvis

Slide 23 - Pleomorphic spindle cells, low magnification

Slide 24 - Pleomorphic spindle cells surrounding nest of urothelial carcinoma, low magnification