Ads
related to: what causes pleomorphic adenoma of kidney
Search results
Results From The WOW.Com Content Network
Pleomorphic adenoma (or benign mixed tumor) is a common benign salivary gland neoplasm characterised by neoplastic proliferation of epithelial (ductal) cells along with myoepithelial components, having a malignant potentiality.
The precursor cell of PEComas is currently unknown; there is no normal counterpart "perivascular epitheloid cell". [1] Genetically, PECs are linked to the tuberous sclerosis genes TSC1 and TSC2, although this link is stronger for angiomyolipoma and lymphangioleiomyomatosis than for other members of the PEComa family.
Most salivary gland tumors are benign – that is, they are not cancer and will not spread to other parts of the body. These tumors are almost never life-threatening. There are many types of benign salivary gland tumors, with names such as adenomas, oncocytomas, Warthin tumors, and benign mixed tumors (also known as pleomorphic adenomas).
A rare type of rhabdomyosarcoma that is found in adults is known as pleomorphic rhabdomyosarcoma. [4] Despite the prevalence of pleomorphism in human pathology, its role in disease progression is unclear. In epithelial tissue, pleomorphism in cellular size can induce packing defects and disperse aberrant cells. [5]
Clear cell sarcoma of the kidney (CCSK) is an extremely rare type of kidney cancer comprising 3% of all pediatric renal tumours. [1] Clear cell sarcoma of the kidney can spread from the kidney to other organs, most commonly the bone , but also including the lungs , brain, and soft tissues of the body.
Clear-cell carcinoma may arise in multiple tissue types including the kidney (clear-cell renal-cell carcinoma), ovary (ovarian clear-cell carcinoma), [4] uterus (uterine clear-cell carcinoma) or gastrointestinal tract (colorectal clear-cell carcinoma). [5] Treatment options for clear cell carcinoma vary by the tissue type affected.
Benign tumour of the submandibular gland, also known as pleomorphic adenoma, presented as a painless neck mass in a 40-year-old man. At the left of the image is the white tumour with its characteristic cartilaginous cut surface. To the right is the normally lobated submandibular salivary gland. Warthin's tumor; Myoepithelioma; Basal cell ...
In approximately 75% of cases ca ex PAs arise in a pleomorphic adenoma that is apparent when the tumour is excised. [2] In the other approximately 25% of cases the individual had a pleomorphic adenoma excised previously and the diagnosis is made based on (1) the presence of a carcinoma, and (2) the history of a pleomorphic adenoma at that location.