Search Results for pleomorphic

PLEOMORPHIC ADENOMA Figure 2-34 PLEOMORPHIC ADENOMA A: Low-magnification view of a palate pleomorphic adenoma with areas of cellular myoepithelial cells, ducts, and myxoid stroma. B: High-magnification view shows sheets of myoepithelial cells with bland cytology, nodular areas of myxoid stroma More about this image found in PLEOMORPHIC ADENOMA A: Low-magnification view of a palate pleomorphic aden...

CERUMINOUS PLEOMORPHIC ADENOMA Figure 8-69 CERUMINOUS PLEOMORPHIC ADENOMA A: Low power shows a pleomorphic adenoma below the surface. B: The biphasic appearance of the pleomorphic adenoma is easy to detect below an intact squamous epithelium. C: The epithelial-myoepithelial nature More about this image found in CERUMINOUS PLEOMORPHIC ADENOMA A: Low power shows a pleomorphic adenoma be...

UNDIFFERENTIATED PLEOMORPHIC SARCOMA Figure 1-117 UNDIFFERENTIATED PLEOMORPHIC SARCOMA A: Cells are markedly atypical and show no specific differentiation. B: Cases with prominent myxoid changes and prominent vessels are called myxofibrosarcoma. More about this image found in UNDIFFERENTIATED PLEOMORPHIC SARCOMA A: Cells are markedly atypical and sh...

ANGIOSARCOMA Figure 1-123 ANGIOSARCOMA A: Pleomorphic epithelioid cells form blood-filled vascular spaces. B: Endothelial markers like CD31 (pictured here), CD34, and ERG are confirmatory. More about this image found in ANGIOSARCOMA A: Pleomorphic epithelioid cells form blood-filled vascular s...

PLEOMORPHIC ADENOMA Figure 4-64 PLEOMORPHIC ADENOMA Adenoma presents as a submucosal swelling of the hard palate. More about this image found in PLEOMORPHIC ADENOMA Adenoma presents as a submucosal swelling of the hard ...

PLEOMORPHIC ADENOMA Figure 4-65 PLEOMORPHIC ADENOMA A: Characteristic low-power image shows varying patterns with chondromyxoid stroma and a putative fibrous capsule (arrow). B: Tubular and ductal structures are seen within a cellular fibrous stroma. C: Plasmacytoid cells with eccentric nuclei More about this image found in PLEOMORPHIC ADENOMA A: Characteristic low-power image shows varying patter...

PLEOMORPHIC ADENOMA Figure 6-82 PLEOMORPHIC ADENOMA A: The tumor shows a uniform population of ovoid myoepithelial cells dispersed in a chondromyxoid matrix. B: Areas of tumor resemble cartilage with loose, basophilic matrix and lacunae. More about this image found in PLEOMORPHIC ADENOMA A: The tumor shows a uniform population of ovoid myoep...

SPINDLE CELL/PLEOMORPHIC LIPOMA Figure 7-43 SPINDLE CELL/PLEOMORPHIC LIPOMA A: Spindle cell lipoma consists of bland spindle cells in a collagenous stroma and varying amounts of mature adipose tissue. B: In pleomorphic lipoma, which is a variant of spindle cell lipoma, many of the stromal cells More about this image found in SPINDLE CELL/PLEOMORPHIC LIPOMA A: Spindle cell lipoma consists of bland s...

LIPOSARCOMA Figure 7-56 LIPOSARCOMA A: Myxoid liposarcoma shows lipogenic tumor cells in a somewhat myxoid stroma. This tumor has the prominent “chicken wire” vasculature and increased numbers of slightly atypical nonlipogenic stromal cells. B: This pleomorphic liposarcoma consists of sheets More about this image found in LIPOSARCOMA A: Myxoid liposarcoma shows lipogenic tumor cells in a somewha...

ATYPICAL FIBROXANTHOMA Figure 8-30 ATYPICAL FIBROXANTHOMA A: The neoplastic cells just below the intact epidermis have a storiform appearance. There is easily identified pleomorphism. B: Tumor cell spindling with basophilic cytoplasm. C: The surface (upper left) seems to blend with the tumor More about this image found in ATYPICAL FIBROXANTHOMA A: The neoplastic cells just below the intact epide...

PARAGANGLIOMA Figure 8-92 PARAGANGLIOMA Cytology findings show moderate cellularity with a background of blood. A: Clusters and single cells are seen. (Papanicolaou stain) B: There are polygonal, spindled, and isolated pleomorphic cells in this smear. (Diff Quik stain) C: Polygonal cells More about this image found in PARAGANGLIOMA Cytology findings show moderate cellularity with a backgroun...

NK/T-CELL LYMPHOMA Figure 1-180 NK/T-CELL LYMPHOMA A: Small lymphoid cells are seen effacing the stroma. B: Small and intermediate-sized neoplastic cells are associated with hemorrhage. C: The neoplastic cells have ample eosinophilic to light cytoplasm, with pleomorphism present. D More about this image found in NK/T-CELL LYMPHOMA A: Small lymphoid cells are seen effacing the stroma. ...

OLFACTORY NEUROBLASTOMA Figure 1-140 OLFACTORY NEUROBLASTOMA A,B: Grading ONB is based on several factors. No pleomorphism, small cell size, and abundant neural matrix in a grade 1 tumor (A); slight tumor cell spindling with small nucleoli, but no increased mitoses and lymphoid tissue More about this image found in OLFACTORY NEUROBLASTOMA A,B: Grading ONB is based on several factors. No p...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-58 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Polygonal neoplastic cells with significant pleomorphism. More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Polygonal neoplastic cells with si...

LEIOMYOMA Figure 1-62 LEIOMYOMA A,B: Benign smooth muscle tumors can be hypercellular (A) or hypocellular (B), but lack pleomorphism, necrosis, and increased mitoses. More about this image found in LEIOMYOMA A,B: Benign smooth muscle tumors can be hypercellular (A) or hyp...

SQUAMOUS PAPILLOMA Figure 6-26 SQUAMOUS PAPILLOMA Mild maturational abnormalities of cells include mildly pleomorphic nuclei, scattered binucleation, and minimal parakeratosis on the surface. More about this image found in SQUAMOUS PAPILLOMA Mild maturational abnormalities of cells include mildly...

SQUAMOUS PAPILLOMA Figure 6-25 SQUAMOUS PAPILLOMA The epithelium shows the mild maturational abnormalities. Cells have mildly pleomorphic nuclei, scattered binucleation, and koilocytic change with cytoplasmic clearing. More about this image found in SQUAMOUS PAPILLOMA The epithelium shows the mild maturational abnormalitie...

CHORDOMA Figure 7-54 CHORDOMA A,B: Loosely cohesive groups of polygonal cells with elongated to oval nuclei and small distinct nucleus. There is a mild amount of nuclear pleomorphism. (Papanicolaou stain) More about this image found in CHORDOMA A,B: Loosely cohesive groups of polygonal cells with elongated to...

GLOMANGIOPERICYTOMA Figure 1-101 GLOMANGIOPERICYTOMA A–C: The cells are bland (A), syncytial in pattern (B), with evenly distributed chromatin in oval to slightly spindled nuclei (C). D: Nuclear pleomorphism is a harbinger of malignant transformation. More about this image found in GLOMANGIOPERICYTOMA A–C: The cells are bland (A), syncytial in pattern (B)...

LEIOMYOSARCOMA Figure 1-118 LEIOMYOSARCOMA A: The tumor cells have pink cytoplasm with elongated, pleomorphic and hyperchromatic nuclei, and are arranged as intersecting fascicles. B: Smooth muscle differentiation is demonstrated by staining for smooth muscle actin. More about this image found in LEIOMYOSARCOMA A: The tumor cells have pink cytoplasm with elongated, pleo...