LARGE VESSEL INVASION IN ADRENAL CORTICAL CARCINOMA Figure 6-22 LARGE VESSEL INVASION IN ADRENAL CORTICAL CARCINOMA This ACC caused almost complete occlusion of the lumen of the inferior vena cava. The tumor shows extensive necrosis. One portion is attached to the wall of the vein. A few areas of... More about this image found in LARGE VESSEL INVASION IN ADRENAL CORTICAL CARCINOMA This ACC caused almost...

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 pseudoroset... More about this image found in VAGAL PARAGANGLIOMA A: The prominent blood vessels and a pericyte-like arr...

CAROTID BODY PARAGANGLIOMA Figure 9-29 CAROTID BODY PARAGANGLIOMA Extensive necrosis resulted from preoperative embolization performed to reduce bleeding. Embolic foreign material is present in blood vessel at top right. More about this image found in CAROTID BODY PARAGANGLIOMA Extensive necrosis resulted from preoperative e...

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...

CAROTID BODY PARAGANGLIOMA Figure 9-20 CAROTID BODY PARAGANGLIOMA Areas of sclerosis encroach on the tumor capsule and tumor blood vessels. The presence of hemosiderin suggests repeated ischemia and infarction as possible factors contributing to the development of sclerosis in this case. More about this image found in CAROTID BODY PARAGANGLIOMA Areas of sclerosis encroach on the tumor capsul...

CAROTID BODY PARAGANGLIOMA Figure 9-30 CAROTID BODY PARAGANGLIOMA Preoperative embolization of this tumor was performed with gel beads, which are seen occluding cavernous blood vessels. There is no postembolic necrosis in this case, probably reflecting a shorter interval between embolization and ... More about this image found in CAROTID BODY PARAGANGLIOMA Preoperative embolization of this tumor was per...

CAROTID BODY PARAGANGLIOMA Figure 9-12 CAROTID BODY PARAGANGLIOMA The tumor is completely encapsulated and has protruding segments of nerve and artery (top left). The cut surface shows focal cystic degeneration and prominent cavernous blood vessels. A distinct large fleshy nodule is present at lo... More about this image found in CAROTID BODY PARAGANGLIOMA The tumor is completely encapsulated and has pr...

NODULAR ADRENAL GLAND Figure 4-1 NODULAR ADRENAL GLAND Diagram of a transverse section shows cortical extrusions with various configurations. Some lie free in periadrenal adipose tissue area. A larger, dominant intracortical nodule is present (left). There is intermingling of nests of cortical ce... More about this image found in NODULAR ADRENAL GLAND Diagram of a transverse section shows cortical extru...

CAROTID BODY PARAGANGLIOMA Figure 9-15 CAROTID BODY PARAGANGLIOMA A: Tumor tissue in most parts of the tumor (same specimen as fig. 9-12 ) shows uniform round nests of weakly eosinophilic cells and cavernous blood vessels. B: This section, taken at the interface between the circumscribed fleshy... More about this image found in CAROTID BODY PARAGANGLIOMA A: Tumor tissue in most parts of the tumor (sam...

CAROTID BODY PARAGANGLIOMA Figure 9-15 CAROTID BODY PARAGANGLIOMA A: Tumor tissue in most parts of the tumor (same specimen as fig. 9-12 ) shows uniform round nests of weakly eosinophilic cells and cavernous blood vessels. B: This section, taken at the interface between the circumscribed fleshy... More about this image found in CAROTID BODY PARAGANGLIOMA A: Tumor tissue in most parts of the tumor (sam...

PATCH STAGE OF CUTANEOUS KAPOSI SARCOMA Figure 8-17 PATCH STAGE OF CUTANEOUS KAPOSI SARCOMA The dermis appears “busy,” with a subtle vasoformative proliferation composed of somewhat jagged vessels, usually most obvious in the vicinity of native blood vessels and skin appendages. More about this image found in PATCH STAGE OF CUTANEOUS KAPOSI SARCOMA The dermis appears “busy,” with a ...

GRAM-NEGATIVE BACTERIA Figure 12-42 GRAM-NEGATIVE BACTERIA Histopathology of the vasocentric pattern of inflammation due to gram-negative bacteria in the larynx, showing zones of vessel-associated necrosis at low power (A). Note the gram-negative bacilli in relation to the blood vessel wall and s... More about this image found in GRAM-NEGATIVE BACTERIA Histopathology of the vasocentric pattern of inflam...

NIPAH VIRUS INFECTION Figure 3-46 NIPAH VIRUS INFECTION A: Typical syncytial endothelial cells are seen in a small blood vessel. B: Viral antigens are confirmed by immunohistochemistry. (Courtesy of the CDC PHIL) More about this image found in NIPAH VIRUS INFECTION A: Typical syncytial endothelial cells are seen in a...

VASCULOPATHY ASSOCIATED WITH HIV Figure 9-11 VASCULOPATHY ASSOCIATED WITH HIV A: Cerebral artery with severe intimal thickening and narrowing (endarteritis obliterans). B: HIV vasculitis in a cerebral artery, with lymphocytes infiltrating through the vessel wall. More about this image found in VASCULOPATHY ASSOCIATED WITH HIV A: Cerebral artery with severe intimal th...