PIGMENTED PHEOCHROMOCYTOMA Figure 8-32 PIGMENTED PHEOCHROMOCYTOMA The accumulation of melanin in the tumor cells can mimic melanoma and these tumors can appear black on gross examination. More about this image found in PIGMENTED PHEOCHROMOCYTOMA The accumulation of melanin in the tumor cells ...

PHEOCHROMOCYTOMA: ATYPICAL MITOSES Figure 8-49 PHEOCHROMOCYTOMA: ATYPICAL MITOSES A–C: The presence of atypical mitoses should prompt careful examination for other features suggestive of aggressive behavior. More about this image found in PHEOCHROMOCYTOMA: ATYPICAL MITOSES A–C: The presence of atypical mitoses s...

METAIODOBENZYLGUANIDINE (MIBG) SCAN OF WIDELY METASTASIZED NEUROBLASTOMA Figure 11-5 METAIODOBENZYLGUANIDINE (MIBG) SCAN OF WIDELY METASTASIZED NEUROBLASTOMA A 2-year old girl presented with fever and a painless swelling in the abdomen. Blood and urine cultures were negative and initial ultrasound was suspicious of a renal tumor. After referral to an expert center, clinical examination (slight hypertension), laboratory testing (increased urinary catecholamines), and abdominal MRI imaging showed that a diagnosis of metastatic NB was more likely. The MRI depicted a right-sided adrenal mass with retroperitoneal lymph node metastases. Additional MIBG scintigraphy shows increased uptake in the primary adrenal NB and locoregional lymph nodes (black arrow), but also extensive bone marrow metastases throughout. At the top, is a classic orbital metastasis and at the bottom, a tibial metastasis (red arrows). Histopathology showed an undifferentiated NB, with MYCN amplification, indicative of a high-risk NB patient. (Courtesy of Dr. A. J. Braat, University Medical Center Utrecht, The Netherlands) More about this image found in METAIODOBENZYLGUANIDINE (MIBG) SCAN OF WIDELY METASTASIZED NEUROBLASTOMA A...

TOXOPLASMA CHORIORETINITIS Figure 25-2 TOXOPLASMA CHORIORETINITIS Fundoscopic examination shows active lesions, scarring, and choroidal neovascularization. (Courtesy of the Centers for Disease Control and Prevention [CDC] Public Health Image Library [PHIL]) More about this image found in TOXOPLASMA CHORIORETINITIS Fundoscopic examination shows ...

NEUROPATHIC FLAVIVIRUS DISEASE PREVENTION Figure 3-8 NEUROPATHIC FLAVIVIRUS DISEASE PREVENTION Inspector examining discarded tires, where stagnant water frequently collects and serves as a breeding place for mosquitos. (Courtesy of the CDC PHIL) More about this image found in NEUROPATHIC FLAVIVIRUS DISEASE PREVENTION Inspector examining discarded ti...

ESOPHAGEAL CANDIDIASIS Figure 22-9 ESOPHAGEAL CANDIDIASIS These fungal organisms were only identified after careful examination of numerous PAS-stained levels, due to their scant and focal nature. More about this image found in ESOPHAGEAL CANDIDIASIS These fungal organisms were only identified after c...

INFECTIVE ENDOCARDITIS Figure 16-2 INFECTIVE ENDOCARDITIS Ocular involvement shows Roth spots on fundoscopic examination. Note the round to flame-shaped retinal hemorrhage with pale center (arrow). (Courtesy of the Centers for Disease Control and Prevention [CDC] Public Health Image Library [PHIL... More about this image found in INFECTIVE ENDOCARDITIS Ocular involvement shows Roth spots on fundoscopic ...