Mucinous neoplasm
{{Infobox medical condition (new)
| name = Mucinous neoplasm
| synonyms = Colloid neoplasm
| image = Colonic mucinous adenocarcinoma - low mag.jpg
| caption = Micrograph of a mucinous adenocarcinoma of the colon. H&E stain.
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| field = Oncology
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A mucinous neoplasm (also called colloid neoplasm) is an abnormal and excessive growth of tissue (neoplasia) with associated mucin (a fluid that sometimes resembles thyroid colloid). It arises from epithelial cells that line certain internal organs and skin, and produce mucin (the main component of mucus). A malignant mucinous neoplasm is called a mucinous carcinoma. For example, for ovarian mucinous tumors, approximately 75% are benign, 10% are borderline and 15% are malignant.
Mucinous carcinoma
Over 40 percent of all mucinous carcinomas are colorectal.{{cite journal |last1=Benesch |first1=Matthew |last2=Mathieson |first2=Alexander |title=Epidemiology of Mucinous Adenocarcinomas |journal=Cancers |date=November 2020 |volume=12 |issue=11 |page=E3193 |doi=10.3390/cancers12113193 |pmid=33143115|pmc=7692300 |doi-access=free }}
When found within the skin, mucinous carcinoma is commonly a round, elevated, reddish, and sometimes ulcerated mass, usually located on the head and neck.{{cite book |author1=James, William D. |author2=Berger, Timothy G. |title=Andrews' Diseases of the Skin: Clinical Dermatology |publisher=Saunders Elsevier |year=2006 |isbn=0-7216-2921-0 |display-authors=etal}}{{rp|669}}
File:Histopathology of mucinous invasive ductal carcinoma of the breast.jpg|Mucinous carcinoma of the breast: Gross pathology (upper left) of mucinous carcinoma shows gelatinous areas. Histopathology shows clusters or nests of tumor cells floating in pools of extracellular mucin.{{cite web|url=https://www.pathologyoutlines.com/topic/breastmalignantmucinous.html|title=Breast - Other carcinoma subtypes, WHO classified - Mucinous|author=Carissa LaBoy, M.D., Kalliopi P. Siziopikou, M.D., Ph.D.|website=Pathology Outlines}} Topic Completed: 23 February 2021. Minor changes: 23 February 2021
See also
Notes
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References
- {{NCI-cancer-dict}}
- [http://www.cancer.gov/dictionary?CdrID=44289 Mucinous carcinoma] entry in the public domain NCI Dictionary of Cancer Terms