Cervical cancer types
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Cervical cancer
Type <BR> squamous cell carcinoma
Cervical cancer squamous cell carcinoma to the main, about 90% to 95%, adenocarcinoma accounts for only 5% to 10%. But there no cancer in appearance SDT, and occurred in the Department of vaginal or cervical carotid tube.
(1) of the concept in the development of invasive cervical cancer, abnormal visual inspection of special, or similar general cervical erosion. With the emergence of invasive cervical cancer, cervical be in the following four types: 1. Erosive: around the cervix, mouth rough granular surface erosion, or irregular St. face, touched easy bleeding. 2. Exogenous: also known as hyperplasia or cauliflower-type. The polyp-like papillary or uplift, and then to the development of vaginal prominent ranging from the size of the cauliflower-like vegetation, focuses easy bleeding. 3. Within Type: also known as infiltration. Cervical cancer deep tissue infiltration, cervical and hard mast, but still smooth surface or only superficial ulcers. 4. Ulceration: whether endogenous or exogenous type of further development, the cancer tissue necrosis off, forming ulcers, or even for an entire cervical replaced by the empty, often due to secondary infections, there is a stench from the secretions. Cervical cancer is also particularly to the growth of the neck, cervical-barrel increase, which is within the A -
(2) check a mirror. Dysplasia: dysplasia performance for the bottom cell hyperplasia, the underlying cells not only proliferation, but also cells with nuclei and increasing disorder, with thick, uneven distribution of chromatin and nuclear heterogeneity change. Dysplasia can be divided into mild, moderate and severe. ① mild dysplasia (change as Level I): epithelial cells with slightly disordered, cells mild atypia, abnormal epithelial occupy one third of the cortex. ② moderate dysplasia (change as Ⅱ): epithelial cells with disorder, marked atypia, abnormal epithelial occupy two-thirds of the cortex. ③ severe atypical hyperplasia (change as Ⅲ): Almost all of epithelial polarity polar disorder or disappeared, significantly abnormal cell carcinoma in situ and have been difficult to distinguish.
2. DCIS: carcinoma in situ (CIS) also known as epithelial carcinoma. All of epithelial polarity disappeared, significantly abnormal cells, nuclear, with deep, uneven distribution of chromatin, mitotic rate. But the disease remains confined to the epithelium, no basement membrane penetration, seamless infiltration. Shaped along the cervical glandular cells can enter the transitional cavity openings with the cervical glands, resulting in the original column gland cells for multiple abnormal squamous cells alternative, but still maintain integrity of the basement membrane gland, a condition called cervical carcinoma in situ involving glands.
3. Under early invasive carcinoma: Endoscopic early invasive carcinoma in situ basis, occasionally there can be found in small cells have pierced the basement membrane, like the teardrop-shaped basement membrane into mesenchymal nearby, the depth of invasion less than 5mm, 7mm width not exceeding nor foci convergence phenomenon and no violations within the interstitial Vascular signs, without clinical features.
4. Squamous cell invasive carcinoma: When penetrate epithelial basement membrane cells, mesenchymal depth of more than 5mm, known as squamous cell invasive carcinoma. In between, there will be the quality of tree, of the cable of, or filled with the massive cancer nests.
According biopsy, cell differentiation can be divided into three: 1 Level I: differentiation good. Cancer nest in a considerable number of keratosis phenomenon clearly visible beads of cancer. ② Ⅱ: Medium division (up to the middle cervical cell differentiation), no significant cancer nest keratosis phenomenon. ③ Ⅲ: small cell undifferentiated (equivalent to the underlying cervical undifferentiated cells).
5. Adenocarcinoma: adenocarcinoma from the lining of the cervix and cervical surface of the columnar epithelium within the gland. Microscopically, the glandular structure can be seen, even with glandular cavity papillary processes. Epithelium proliferation is a multi-level, low cells, atypia obvious that mitotic phase. If cancer cells with adenovirus cavity, which can not find the original structure gland is often difficult to poorly differentiated adenocarcinoma and squamous cell carcinoma of the distinction. If both adenocarcinoma and squamous cell carcinoma of cervix, called adenovirus, squamous cell carcinoma. Gland, a high degree of malignant cancer, early metastasis, and poor prognosis.
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Tags: bleeding, carcinoma, cell, early, erosion, infection, vaginal, virus