SEMINOMA Figure 4-60 SEMINOMA Intratubular seminoma adjacent to invasive seminoma fills and expands the seminiferous tubules. More about this image found in SEMINOMA Intratubular seminoma adjacent to invasive seminoma fills and exp...

SEMINOMA Figure 4-44 SEMINOMA Left: Seminoma cells are present between tubules adjacent to Leydig cells. Although the seminoma cells in this example have dense cytoplasm, their nuclei are markedly more atypical than those of the Leydig cells. Right: In this example, seminoma cells with clear cyt... More about this image found in SEMINOMA Left: Seminoma cells are present between tubules adjacent to Leyd...

SEMINOMA Figure 4-39 SEMINOMA This seminoma forms cords of tumor cells similar to lobular breast cancer. The cytoplasm is amphophilic rather than clear. More about this image found in SEMINOMA This seminoma forms cords of tumor cells similar to lobular breas...

SEMINOMA Figure 4-43 SEMINOMA In some tumors, seminoma cells grow between preserved seminiferous tubules; this is rarely the predominant pattern. More about this image found in SEMINOMA In some tumors, seminoma cells grow between preserved seminiferou...

SEMINOMA Figure 4-53 SEMINOMA A,B: A rare seminoma with spindle-shaped tumor cells (A) and nuclear staining for OCT3/4 in both polygonal and spindle cells (B). C: A seminoma with a vaguely fascicular pattern of spindled tumor cells. More about this image found in SEMINOMA A,B: A rare seminoma with spindle-shaped tumor cells (A) and nucl...

SEMINOMA Figure 4-54 SEMINOMA The abundant lymphoid infiltrate splits the seminoma cells into packets. More about this image found in SEMINOMA The abundant lymphoid infiltrate splits the seminoma cells into p...

SEMINOMA Figure 4-55 SEMINOMA A prominent lymphoid follicle with seminoma cells at its periphery. More about this image found in SEMINOMA A prominent lymphoid follicle with seminoma cells at its peripher...

SEMINOMA Figure 4-58 SEMINOMA An extensive granulomatous reaction in a seminoma masks many of the neoplastic cells. The scattered neoplastic cells are highlighted by their clear cytoplasm. More about this image found in SEMINOMA An extensive granulomatous reaction in a seminoma masks many of t...

SEMINOMA Figure 4-79 SEMINOMA Fine needle aspiration of a metastatic seminoma shows loosely cohesive cells with one or more prominent nucleoli (Papanicolaou stain). More about this image found in SEMINOMA Fine needle aspiration of a metastatic seminoma shows loosely coh...

PARTIALLY REGRESSED SEMINOMA Figure 4-213 PARTIALLY REGRESSED SEMINOMA Left: A seminoma with an intense lymphocytic reaction (bottom) is adjacent to a large area of regression containing innumerable blood vessels. Right: Higher magnification shows the extreme vascularity of the area of regressio... More about this image found in PARTIALLY REGRESSED SEMINOMA Left: A seminoma with an intense lymphocytic ...

SEMINOMA Figure 9-11 SEMINOMA Individual seminoma cells grow between tubules in association with a dense infiltrate of benign lymphocytes. More about this image found in SEMINOMA Individual seminoma cells grow between tubules in association wit...

SEMINOMA Figure 4-75 SEMINOMA An immunohistochemical stain for CD117 shows membranous staining of seminoma cells. More about this image found in SEMINOMA An immunohistochemical stain for CD117 shows membranous staining ...

SEMINOMA AND CHORIOCARCINOMA Figure 4-155 SEMINOMA AND CHORIOCARCINOMA The trophoblasts in this tumor, which was predominantly seminoma, create a well-visualized biphasic pattern. More about this image found in SEMINOMA AND CHORIOCARCINOMA The trophoblasts in this tumor, which was pre...

SEMINOMA: INTRATUBULAR GRANULOMATOUS INFLAMMATION Figure 4-62 SEMINOMA: INTRATUBULAR GRANULOMATOUS INFLAMMATION A marked intratubular granulomatous reaction was adjacent to a seminoma with a diffuse granulomatous reaction. More about this image found in SEMINOMA: INTRATUBULAR GRANULOMATOUS INFLAMMATION A marked intratubular gr...

SEMINOMA: ADJACENT INTRATUBULAR SYNCYTIOTROPHOBLAST CELL Figure 4-69 SEMINOMA: ADJACENT INTRATUBULAR SYNCYTIOTROPHOBLAST CELL A syncytiotrophoblast cell is seen in a tubule adjacent to seminoma (right). More about this image found in SEMINOMA: ADJACENT INTRATUBULAR SYNCYTIOTROPHOBLAST CELL A syncytiotrophob...

PARTIALLY REGRESSED SEMINOMA Figure 4-208 PARTIALLY REGRESSED SEMINOMA A diffuse granulomatous reaction leaves only a few residual seminoma cells (upper right). More about this image found in PARTIALLY REGRESSED SEMINOMA A diffuse granulomatous reaction leaves only ...