Search results
Results from the WOW.Com Content Network
The imaging modalities discussed below are for tumor characterization, confirmation of metastatic disease, and treatment planning — they are not used to discern tumor location or help the surgical team prepare for excision. [89] For most pheochromocytoma patients, functional imaging will follow a CT or MR.
Multiple endocrine neoplasia type 2 (also known as "Pheochromocytoma (codons 630 and 634) and amyloid producing medullary thyroid carcinoma", [1] "PTC syndrome," [1] and "Sipple syndrome" [1]) is a group of medical disorders associated with tumors of the endocrine system. The tumors may be benign or malignant .
Adrenal cancer is the presence of malignant adrenal tumors, and includes neuroblastoma, adrenocortical carcinoma and some adrenal pheochromocytomas. Most adrenal pheochromocytomas and all adrenocortical adenomas are benign tumors, which do not metastasize or invade nearby tissues, but may cause significant health problems by unbalancing hormones.
Multiple endocrine neoplasia (abbreviated MEN) is a condition which encompasses several distinct syndromes featuring tumors of endocrine glands, each with its own characteristic pattern. In some cases, the tumors are malignant, in others, benign. Benign or malignant tumors of nonendocrine tissues occur as components of some of these tumor ...
When the same type of tumor is found in the adrenal gland, they are referred to as a pheochromocytoma. They are rare tumors, with an overall estimated incidence of 1 in 300,000. [1] There is no test that determines benign from malignant tumors; long-term follow-up is therefore recommended for all individuals with paraganglioma. [2]
Histopathology of a pheochromocytoma with coagulative necrosis, displayed at gross pathology (upper left) and light microscopy at low (upper right), medium (lower left) and high magnification (lower right). High magnification reveals ghost cells.
Well-differentiated neuroendocrine tumor with salt-and-pepper chromatin, seen on H&E stain and Pap stain, and actual salt and pepper for comparison.. In pathology, salt-and-pepper chromatin, also salt-and-pepper nuclei and stippled chromatin, refers to cell nuclei that demonstrate granular chromatin (on light microscopy).
NETs include certain tumors of the gastrointestinal tract and of the pancreatic islet cells, [1] certain thymus and lung tumors, and medullary carcinoma of the parafollicular cells of the thyroid. [1] Tumors with similar cellular characteristics in the pituitary, parathyroid, and adrenomedullary glands are sometimes included [9] or excluded. [1]