Anal cancer (ung thư bờ viền hậu môn) khác biệt với rectal cancer (ung thư ruột thẳng) ra sao, chưã trị thế nào? prognosis ra sao? NTM Tôi đọc trên Internet nhưng chả biết người này là ai, nhưng chỉ để ý đến ung thư bờ viền hậu môn (anal canal). Không thấy ai trả lời, nên chỉ tóm tắt như sau: Ung thư đường tiêu hoá từ miệng đến bờ viền hậu môn: cách chữa trị tùy histopathology.
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài: Intensity-Modulated Radiotherapy for Squamous Cell Carcinoma of the Anal Canal: Efficacy of a Low Daily Dose to Clinically Negative Regions...
Bangladesh has no organized screening program, but recently the government decided to expand opportunistic
VIA screening, making it one of the first countries to introduce VIA for its national cervical cancer screening
A report on this program14
announced that more than 100,000 women over 30 years of age had been
screened, with a VIA positivity rate of less than 5 percent—a very low rate, which was attributed to extensive
training and to the predominantly Muslim population.
The lack of understanding of the mechanisms whereby the above aetiological
factors (genetic and environmental) interact to initiate the complex pathobiology of
schizophrenia is the key reason for the relative lack of progress in the development of novel
drug treatments. All the antipsychotic medication that is currently in use (first and second
generation) is all predicated on the so-called ‘Dopamine Hypothesis’ (discussed below) and
share a common putative mechanism of action, namely dopamine antagonism.
Mucositis Irritation and inflammation of the mucous membranes particularly afflicting the oral and anal mucosa, but potentially involving the gastrointestinal tract, may accompany cytotoxic chemotherapy. Mucositis is due to damage to the proliferating cells at the base of the mucosal squamous epithelia or in the intestinal crypts. Topical therapies, including anesthetics and barrier-creating preparations, may provide symptomatic relief in mild cases.
Cancers of the Anus Cancers of the anus account for 1–2% of the malignant tumors of the large bowel. Most such lesions arise in the anal canal, the anatomic area extending from the anorectal ring to a zone approximately halfway between the pectinate (or dentate) line and the anal verge. Carcinomas arising proximal to the pectinate line (i.e., in the transitional zone between the glandular mucosa of the rectum and the squamous epithelium of the distal anus) are known as basaloid, cuboidal, or cloacogenic tumors; about one-third of anal cancers have this histologic pattern.
Squamous cell carcinoma in situ, also called Bowen disease, is the earliest form of squamous
cell skin cancer. “In situ” means that the cells of these cancers are still only in the epidermis
and have not invaded the dermis.
Bowen disease appears as reddish patches. Compared with actinic keratoses, Bowen disease
patches tend to be larger (sometimes over 1/2 inch across), redder, scalier, and sometimes
Like invasive squamous cell skin cancers, the major risk factor is too much sun exposure.
Bowen disease can also occur in the skin of the anal and genital areas.
(BQ) Part 2 book "The Bethesda system for reporting cervical cytology" presents the following contents: Epithelial cell abnormalities - squamous, epithelial abnormalities - glandular, other malignant neoplasms, anal cytology, adjunctive testing, computer assisted interpretation of cervical cytology, educational notes and comments appended to cytology reports, risk assessment approach to management,...