NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA Figure 4-189 NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA Occasionally, the neoplastic stroma and background fibrous tissue separate the epithelial and blastema elements into nodular aggregates. More about this image found in NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA Occasionally, the neoplastic ...

NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA Figure 4-188 NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA A: There is a triphasic proliferation of primitive tubules, blastema, and stroma. B: WT1 reactivity is patchy in the same case as shown in A. C: The primitive renal tubules sometimes form glom... More about this image found in NEPHROBLASTOMA IN POSTPUBERTAL-TYPE TERATOMA A: There is a triphasic proli...

POSTCHEMOTHERAPY NEPHROBLASTOMA Figure 4-236 POSTCHEMOTHERAPY NEPHROBLASTOMA Left: A lobular proliferation of primitive tubules, blastema, and stroma occupies a large area. Several glomeruloid structures are apparent. Right: Higher power shows mostly tubules and a glomerulus-like body with scant... More about this image found in POSTCHEMOTHERAPY NEPHROBLASTOMA Left: A lobular proliferation of primitive...

MINIMAL NODAL INVOLVEMENT BY BLASTEMAL NEPHROBLASTOMA Figure 1-130 MINIMAL NODAL INVOLVEMENT BY BLASTEMAL NEPHROBLASTOMA Left: Small clusters of blastemal cells in the lymph node sinus (arrow) can be difficult to distinguish from displaced germinal centers or other lymphocytes (left). Their cohes... More about this image found in MINIMAL NODAL INVOLVEMENT BY BLASTEMAL NEPHROBLASTOMA Left: Small clusters...

NEPHROBLASTOMA Figure 1-14 NEPHROBLASTOMA The early primitive tubules of nephroblastoma lack lumens, and invite confusion with Homer-Wright rosettes. Areas with true tubular lumens (upper left and right) are focally present. More about this image found in NEPHROBLASTOMA The early primitive tubules of nephroblastoma lack lumens, ...

NEPHROBLASTOMA Figure 1-20 NEPHROBLASTOMA Highly differentiated skeletal muscle in nephroblastoma can resemble fetal rhabdomyoma. This morphologic pattern has no clinical significance. More about this image found in NEPHROBLASTOMA Highly differentiated skeletal muscle in nephroblastoma can...

WT1 EXPRESSION IN NEPHROBLASTOMA Figure 1-28 WT1 EXPRESSION IN NEPHROBLASTOMA In a triphasic nephroblastoma (left), nuclear labeling for WT1 is typically most prominent in primitive blastemal and epithelial components, while more differentiated epithelium and stroma are negative (right). More about this image found in WT1 EXPRESSION IN NEPHROBLASTOMA In a triphasic nephroblastoma (left), nuc...

NEPHROBLASTOMA Figure 1-32 NEPHROBLASTOMA Occasionally, an otherwise typical nephroblastoma (A,B) with abundant mitotic activity may have differentiated epithelial areas within it (C) that mimic metanephric adenoma. More about this image found in NEPHROBLASTOMA Occasionally, an otherwise typical nephroblastoma (A,B) wit...

NEPHROBLASTOMA ARISING IN PERILOBAR NEPHROGENIC RESTS Figure 1-44 NEPHROBLASTOMA ARISING IN PERILOBAR NEPHROGENIC RESTS The nephroblastoma is spherical and delineated from the perilobar rest from which it arose by a thin fibrous capsule. More about this image found in NEPHROBLASTOMA ARISING IN PERILOBAR NEPHROGENIC RESTS The nephroblastoma i...

BLASTEMAL NEPHROBLASTOMA VERSUS LYMPHOCYTES Figure 1-131 BLASTEMAL NEPHROBLASTOMA VERSUS LYMPHOCYTES Blastemal nephroblastoma cells (left) have finer chromatin and demonstrate more nuclear molding than lymphocytes (right). More about this image found in BLASTEMAL NEPHROBLASTOMA VERSUS LYMPHOCYTES Blastemal nephroblastoma cells...

NEPHROBLASTOMA MIMICKING CLEAR CELL SARCOMA OF THE KIDNEY Figure 1-95 NEPHROBLASTOMA MIMICKING CLEAR CELL SARCOMA OF THE KIDNEY Left: Blastemal areas of nephroblastoma may have the same branching capillary vasculature as clear cell sarcoma of the kidney, and underfixed nuclei may show bubbling wh... More about this image found in NEPHROBLASTOMA MIMICKING CLEAR CELL SARCOMA OF THE KIDNEY Left: Blastemal ...

NEPHROBLASTOMA ARISING IN INTRALOBAR NEPHROGENIC RESTS Figure 1-53 NEPHROBLASTOMA ARISING IN INTRALOBAR NEPHROGENIC RESTS Left: The nephroblastoma on the right of figure is solid and well delineated by a thin fibrous capsule. The intralobar nephrogenic rest on the left of the figure contains fat ... More about this image found in NEPHROBLASTOMA ARISING IN INTRALOBAR NEPHROGENIC RESTS Left: The nephrobla...