"in/out-of-phase: no signal loss on out-of-phase imaging (phaeochromocytomas rarely contain a significant amount of intracellular lipid) 12"
"Octreotide is usually labelled with either 111In-DTPA (Octreoscan) or (less commonly) 123I-Tyr3-DTPA 5."
"Octreotide is usually labelled with either 111In-DTPA (Octreoscan) or (less commonly) 123I-Tyr3-DTPA 5."
"18F-DOPA PET is thought to be highly sensitive according to initial results 3. Gallium-68 DOTATATE PET-CT imaging has also been advocated due to their higher lesion to background tissue contrast and high specificity for phaeochromocytoma 14."
"18F-FDOPA (6-[18F]-L-fluoro-L-3, 4-dihydroxyphenylalanine)-based PET-CT imaging can also be a useful tool in diagnosis 17."
"18F-FDOPA (6-[18F]-L-fluoro-L-3, 4-dihydroxyphenylalanine)-based PET-CT imaging can also be a useful tool in diagnosis 17."
"These tumours were first described as chromaffin tumours by German pathologist Max Schottelius (1849–1919) in 1886 with the term phaeochromocytoma first used by another German pathologist Ludwig Pick (1868–1944) in 1912 23,24. Phaeochromocytoma is a borrowed word from German phäochromocytom 25."
"These tumours were first described as chromaffin tumours by German pathologist Max Schottelius (1849–1919) in 1886 with the term phaeochromocytoma first used by another German pathologist Ludwig Pick (1868–1944) in 1912 23,24. Phaeochromocytoma is a borrowed word from German phäochromocytom 25."
"~10% are not associated with hypertension"
"Carney triad: for extra-adrenal phaeochromocytoma"
"succinate dehydrogenase subunit B (SDHB) gene mutation"
"is considered one of the major genes predisposing to paraganglioma/phaeochromocytoma (PPGL) 26"
"Phaeochromocytomas are a type of paraganglioma. They are catecholamine-secreting tumours derived from chromaffin cells. They typically demonstrate a nesting (Zellballen) pattern on microscopy. This pattern is composed of well-defined clusters of tumour cells containing eosinophilic cytoplasm separated by a fibrovascular stroma. Various pathological scoring systems are in use (PASS, GAPP) to predict differentiation and the likelihood of metastasis 15."
"Phaeochromocytomas are a type of paraganglioma. They are catecholamine-secreting tumours derived from chromaffin cells. They typically demonstrate a nesting (Zellballen) pattern on microscopy. This pattern is composed of well-defined clusters of tumour cells containing eosinophilic cytoplasm separated by a fibrovascular stroma. Various pathological scoring systems are in use (PASS, GAPP) to predict differentiation and the likelihood of metastasis 15."
"18F-FDOPA (6-[18F]-L-fluoro-L-3, 4-dihydroxyphenylalanine)-based PET-CT imaging can also be a useful tool in diagnosis 17."
"~1/3 do not have marked T2 hyperintensity 18"
"These tumours were first described as chromaffin tumours by German pathologist Max Schottelius (1849–1919) in 1886 with the term phaeochromocytoma first used by another German pathologist Ludwig Pick (1868–1944) in 1912 23,24. Phaeochromocytoma is a borrowed word from German phäochromocytom 25."
Expected headings
"Genetics"
"Octreotide (somatostatin) scans"
"I-123 MIBG (metaiodobenzylguanidine)"
"PET"
"110-120 HU of enhancement on the arterial phase suggests phaeochromocytoma, but is not specific; hypervascular metastases could be considered in an appropriate setting"
"Over 70% of tumours express somatostatin receptors. Imaging is obtained 4 hours (+/- 24/48 hours) after an intravenous infusion. Unfortunately, the kidney also has somatostatin receptors, as do areas of inflammation, mammary glands, liver, spleen, bowel, gallbladder, thyroid gland, and salivary glands. As such, interpretation can be difficult 5."