Search Results for vascular

SINUSOIDAL AND VASCULAR INVASION IN ADRENAL CORTICAL CARCINOMA Figure 6-21 SINUSOIDAL AND VASCULAR INVASION IN ADRENAL CORTICAL CARCINOMA Patterns of vascular invasion in ACC include sinusoidal invasion (A) and angioinvasion with tumor cells in vascular channels associated with fibrin thrombi (B). More about this image found in SINUSOIDAL AND VASCULAR INVASION IN ADRENAL CORTICAL CARCINOMA Patterns of...

PHEOCHROMOCYTOMA: ANGIOINVASION Figure 8-47 PHEOCHROMOCYTOMA: ANGIOINVASION A,B: The presence of vascular invasion is a worrisome finding, but unlike in other neoplasms, it is not reliably associated with the development of metastatic disease. More about this image found in PHEOCHROMOCYTOMA: ANGIOINVASION A,B: The presence of vascular invasion is ...

VASCULAR PSEUDOROSETTES IN NEUROBLASTOMA Figure 11-22 VASCULAR PSEUDOROSETTES IN NEUROBLASTOMA Apart from Homer Wright pseudorosettes, vascular pseudorosettes are commonly found, sometimes as a result of palisading of neuroblastic tumor cells around vessels. More about this image found in VASCULAR PSEUDOROSETTES IN NEUROBLASTOMA Apart from Homer Wright pseudoros...

JUVENILE (CAPILLARY) ADRENAL HEMANGIOMA Figure 12-9 JUVENILE (CAPILLARY) ADRENAL HEMANGIOMA A,B: Small juvenile hemangioma of the adrenal gland in a newborn. There were numerous cutaneous hemangiomas and a large vascular tumor of the liver with identical histology. The adrenal tumor is uniformly More about this image found in JUVENILE (CAPILLARY) ADRENAL HEMANGIOMA A,B: Small juvenile hemangioma of ...

NONFUNCTIONAL ADRENAL CORTICAL ADENOMA Figure 5-27 NONFUNCTIONAL ADRENAL CORTICAL ADENOMA A: The central portion of this adenoma shows extensive degeneration and hemorrhage with neovascularization. B: Cavernous channels in the hemorrhagic area have features suggestive of a vascular neoplasm. More about this image found in NONFUNCTIONAL ADRENAL CORTICAL ADENOMA A: The central portion of this aden...

VAGAL PARAGANGLIOMA Figure 9-16 VAGAL PARAGANGLIOMA A: The prominent blood vessels and a pericyte-like arrangement of tumor cells may suggest a vascular tumor in the differential diagnosis. B: A different area of the same tumor shows a solid growth pattern with prominent perivascular More about this image found in VAGAL PARAGANGLIOMA A: The prominent blood vessels and a pericyte-like arr...

ADRENAL CORTICAL CARCINOMA Figure 6-8 ADRENAL CORTICAL CARCINOMA An ACC from a 32-year-old female weighed 2,200 g and measured 21 cm in diameter. There were extensive areas of necrosis with foci of vascular invasion. The patient also had pulmonary metastases at the time of diagnosis. More about this image found in ADRENAL CORTICAL CARCINOMA An ACC from a 32-year-old female weighed 2,200 ...

PROTRUSION OF NORMAL CORTICAL CELLS INTO THE LUMEN OF THE CENTRAL VEIN Figure 1-46 PROTRUSION OF NORMAL CORTICAL CELLS INTO THE LUMEN OF THE CENTRAL VEIN Where smooth muscle is deficient, chromaffin or cortical cells may come into close proximity with the vascular space and can form More about this image found in PROTRUSION OF NORMAL CORTICAL CELLS INTO THE LUMEN OF THE CENTRAL VEIN Whe...

as loose plugs of tumor within delicate vascular spaces. More about this image found in ADENOCARCINOMA OF BREAST METASTATIC TO ADRENAL GLAND A: The pattern of gro...

immunohistochemistry is negative, with retained positivity in vascular endothelium serving as an internal positive control. More about this image found in SDH-DEFICIENT PARAGANGLIOMA A: This cardiac paraganglioma from a patient w...

ADRENAL HEMANGIOMA Figure 12-8 ADRENAL HEMANGIOMA The well-developed features of anastomosing adrenal hemangioma include a prominent frame work of non endothelial supporting cells creating a “spleen-like” pattern of vascular channels lined by hobnail endothelial cells and containing occasional More about this image found in ADRENAL HEMANGIOMA The well-developed features of anastomosing adrenal hem...

PEDIATRIC ADRENAL CORTICAL CARCINOMA Figure 6-42 PEDIATRIC ADRENAL CORTICAL CARCINOMA This tumor showed capsular (A) and vascular invasion (B,C). Increased mitotic activity and rare atypical mitotic figures were also found. Cytologic atypia was mild as it is usually in pediatric adrenal cortical More about this image found in PEDIATRIC ADRENAL CORTICAL CARCINOMA This tumor showed capsular (A) and va...

arrow). A nodule is composed of lipid-rich cells (black arrow) and the small hyperplastic nodule protrudes into the vascular lumen between discontinuous bundles of smooth muscle (white arrowhead). More about this image found in PRIMARY PIGMENTED NODULAR ADRENOCORTICAL DISEASE Transverse section throug...

PHEOCHROMOCYTOMA PRODUCING ADRENOCORTICOTROPIC HORMONE (ACTH) AND CAUSING CUSHING SYNDROME Figure 8-40 PHEOCHROMOCYTOMA PRODUCING ADRENOCORTICOTROPIC HORMONE (ACTH) AND CAUSING CUSHING SYNDROME A: The adrenal cortex is markedly thickened and lipid depleted. B: The tumor is a highly vascular More about this image found in PHEOCHROMOCYTOMA PRODUCING ADRENOCORTICOTROPIC HORMONE (ACTH) AND CAUSING C...

cells with chromaffin cells, and both the cortex and medulla have a close anatomic relationship with the vascular space due to discontinuity of smooth muscle in tributaries of the central adrenal vein vessel walls. More about this image found in NODULAR ADRENAL GLAND Diagram of a transverse section shows cortical extru...

vascular lumen formation. More about this image found in PRIMARY ADRENAL ANGIOSARCOMA A: There is well-developed vasoformative arch...

reticulum. The delicate vasculature is illustrated by a vascular channel in the right upper corner that is lined by endothelial cells and partially surrounded by pericytes. B: The tumor cell is essentially devoid of lipid droplets but contains abundant smooth endoplasmic reticulum and some profiles More about this image found in ADRENAL CORTICAL CARCINOMA: ULTRASTRUCTURE A: Tumor cells contain sparse l...

PRIMARY ADRENAL HEMANGIOMA Figure 12-7 PRIMARY ADRENAL HEMANGIOMA A: The subcortical area has a delicate capillary pattern, while more central areas are cavernous and have nonendothelial supporting cells. Fibrin thrombi are also present. B: The more cavernous pattern, with dilated vascular More about this image found in PRIMARY ADRENAL HEMANGIOMA A: The subcortical area has a delicate capillar...

immunostain shows organizing fibrin-rich matter with complex maze of endothelial cells. This pattern can be mistaken for a vascular neoplasm. D: The thick fibrous wall of a longstanding adrenal pseudocyst (different case) is at the bottom of field. There is no endothelial or other lining. Congested adrenal More about this image found in ADRENAL PSEUDOCYST A: Adrenal pseudocyst shows degenerating recent and old...