What is peritoneal serous carcinoma?
What is peritoneal serous carcinoma?
Primary peritoneal serous carcinoma (PPSC) is an epithelial tumor that arises from the peritoneum. On histopathologic analysis, it resembles a malignant ovarian surface epithelial stromal tumor. A 62-year-old woman visited the emergency room with low abdominal pain.
Where are Psammoma bodies found?
Psammoma bodies (PBs) are concentric lamellated calcified structures, observed most commonly in papillary thyroid carcinoma (PTC), meningioma, and papillary serous cystadenocarcinoma of ovary but have rarely been reported in other neoplasms and nonneoplastic lesions.
Is Psammocarcinoma benign or malignant?
Psammocarcinoma is a rare variant of ovarian serous carcinoma and similar to carcinomas that exhibit low-malignant potential.
What is Extraovarian primary peritoneal carcinoma?
Extraovarian primary peritoneal carcinoma (EOPPC) is an adenocarcinoma that develops from the peritoneum lining the pelvis and abdomen and is characterized by abdominal carcinomatosis, uninvolved or minimally involved ovaries, and no identifiable primary tumor.
What is high grade serous carcinoma?
What is a high grade serous cancer? A: High-grade serous carcinomas are distinct neoplasms with different pathogenesis, behavior, and response to treatment than low grade tumours. They are aggressive tumours that usually grow quickly and spread widely before diagnosis.
Are Psammoma bodies malignant?
Psammoma bodies are generally found in damaged tissues, and are commonly associated with malignant cancers as well as some benign, non-cancerous conditions. Their main function is to halt the growth of cancer, and serve as a barrier against the spread of malignant cancer cells.
What is follicular carcinoma?
Follicular carcinomas are malignant epithelial tumors that show evidence of follicular cell differentiation but lack the diagnostic nuclear features of PTC. 121,310. They account for approximately 15% of malignant thyroid tumors. The relative incidence of follicular carcinoma is higher in iodine-deficient areas.
What is Psammomatous calcification?
Psammoma bodies are round microscopic calcific collections. It is a form of dystrophic calcification. Necrotic cells form the focus for surrounding calcific deposition. They have a lamellated concentric calcified structure, sometimes large enough to be seen on CT.
What is Psammocarcinoma?
Psammocarcinoma is a rare form of serous carcinoma of the ovary or peritoneum, and it is characterised by extensive psammoma body formation and invasion of surrounding structures. This report describes the case of a 42-year-old woman who presented with large ascites and raised CA125 level.
Is there such a thing as a psammocarcinoma?
Present with abdominal discomfort and increasing abdominal girth. (2) An obsolete, non-specific term for a carcinoma with abundant psammoma bodies, the most common of which are papillary carcinomas of the thyroid, ovary and pancreas, as well as mesotheliomas, bronchioalveolar carcinomas and others. Segen’s Medical Dictionary. © 2012 Farlex, Inc.
What kind of carcinoma is associated with psammomatous calcification?
This report describes a uterine serous carcinoma with bilateral ovarian metastasis, which was associated with widespread extensive psammomatous calcification of the uterine leiomyomata, the myometrium, and the cervical stroma. These psammoma bodies were not associated with tumour or epithelial elements.
Which is the most common peritoneal serous carcinoma?
Primary peritoneal serous carcinoma also occurs most frequently in women and is derived from extraovarian mesothelium. It is histologically identical to serous adenocarcinoma of the ovary. Primary peritoneal borderline tumor is a rare lesion of low malignant potential that resembles serous borderline tumor of the ovary.
How are psammoma bodies associated with neoplasms?
Psammoma bodies are characteristically associated with non-neoplastic serous proliferations and with serous neoplasms, which may be benign, borderline, or malignant. They are thought to arise secondary to necrosis, with subsequent dystrophic calcification of the tips of papillary structures.