Carcinoma in Situ: Definition, Meaning, and Examples - Verywell …
2023年11月28日 · The term carcinoma in situ is a term used to define and describe a cancer that is only present in the cells where it started and has not spread to any nearby tissues. Carcinoma in situ is the earliest stage of a cancer, and is, at this stage, considered "non-invasive."
Carcinoma in situ: What is it and how is it treated? - Medical News Today
2024年2月27日 · Carcinoma in situ is when cell changes appear cancerous under a microscope but have not spread beyond where they first formed. The words in situ mean in its original...
Carcinoma in Situ: Stage 0 Cancer That Hasn’t Spread
2022年4月21日 · Carcinoma in situ refers to a group of abnormal cells that have not spread from the location where they first formed, although they may later spread into normal tissue and become cancer. Carcinoma in situ, also called in situ cancer or cancer in situ, is different from invasive carcinoma, which has spread to surrounding tissue.
Carcinoma in situ - Wikipedia
Carcinoma in situ is, by definition, a localized phenomenon, with no potential for metastasis unless it progresses into cancer. Therefore, its removal eliminates the risk of subsequent progression into a life-threatening condition.
Definition of carcinoma in situ - NCI Dictionary of Cancer Terms
Carcinoma in situ (CIS) is a group of abnormal cells that are found only in the place where they first formed in the body (see left panel). These abnormal cells may become cancer and spread to nearby normal tissue (see right panel).
In Situ Carcinoma: Definition, Causes, Treatment, Outlook
2022年12月20日 · Carcinoma in situ is a highly treatable form of early stage cancer. It occurs when abnormal cells are found that are not yet cancerous and have not spread to surrounding tissues. Carcinoma in situ can be found in many areas of …
Carcinoma: What is It, Metastatic, In Situ & Invasive
2022年4月29日 · Carcinoma in situ is an early-stage cancer that's confined to the layer of tissue from which it started and that hasn't spread to surrounding tissue or other parts of the body. The care team may also use the term "in situ cancer" or "stage 0 …
原位癌 - 维基百科，自由的百科全书
原位癌 （Carcinoma in situ），是已被发现有 恶性肿瘤 的特点，但还没有入侵其它组织的 肿瘤。 许多形式的癌症始于原位癌，但不能及早发现。 原位癌的癌变仍然限于 黏膜 上皮层内或皮肤表皮层内，非典型增生达全层，尚未突破基底膜向下浸润生长的肿瘤性病变 [1]。 子宫颈 、 食道癌 及 皮肤癌 等形成早期多经过原位癌过程。 原位癌与非典型增生形态上常难以区分，但两者在概念上并不相同，前者性质上为癌，后者性质上属于非典型增生或异型增生范畴。 早期发现和积极 …
原位癌是什麼？剖析癌症進化史 - Hello 醫師
2023年5月22日 · 一般來說，原位癌可分為鱗狀細胞原位癌（Squamous cell carcinoma in situ）和腺原位癌（Adenocarcinoma in situ）兩種。 但有個特例，就是泌尿道上皮癌，泌尿道上皮細胞又稱移行細胞（Transitional Cell），這類細胞能隨其成長改變形狀或延展，不會造成細胞的崩解，因此，泌尿道上皮癌也被稱作移行細胞癌（Transitional cell cancer）。 鱗狀細胞原位癌：癌細胞於鱗狀細胞開始增長，細胞呈扁平形狀，看起來像魚鱗，因此也叫做表皮樣癌或上皮細胞癌。 …
What is carcinoma in situ? An abnormal growth of cells that stays within the area in which it started and has not spread into surrounding breast tissue is called a carcinoma in situ (CIS) [kar-sin-OE-ma in SY-too]. The term in situ means “in place.” CIS is noninvasive because it hasn’t spread to surrounding breast
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