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Encyclopedia > Anal cancer

Anal cancer is a distinct entity from the more common colorectal cancer. The etiology, risk factors, clinical progression, staging, and treatment are all different. Colorectal cancer, also called colon cancer or bowel cancer, includes cancerous growths in the colon, rectum and appendix. ... Etiology (alternately aetiology, aitiology) is the study of causation. ...

A common cause of anal cancer is infection by the human papillomavirus, which can be spread by anal sex. Immunosuppression, which is often associated with HIV infection, also raises the risk of anal cancer. Human papillomavirus is true (HPV) is a member of a group of DNA viruses in the genus Papillomavirus that can infect humans and cause changes in cells leading to abnormal tissue growth. ... Roman men having anal sex. ... Immunosuppression is the medical suppression of the immune system. ... Human immunodeficiency virus (commonly known as HIV, and formerly known as HTLV-III and lymphadenopathy-associated virus) is a retrovirus that primarily infects vital components of the human immune system such as CD4+ T cells, macrophages and dendritic cells. ...

See also

Genital warts (or condyloma) is a very contagious sexually transmitted disease. ...

External links

Tumors (and related structures), Cancer, and Oncology
Benign - Premalignant - Carcinoma in situ - Malignant

Topography: Anus - Bladder - Bone - Brain - Breast - Cervix - Colon/rectum - Duodenum - Endometrium - Esophagus - Eye - Gallbladder - Head/Neck - Liver - Larynx - Lung - Mouth - Pancreas - Penis - Prostate - Kidney - Ovaries - Skin - Stomach - Testicles - Thyroid Tumor (American English) or tumour (British English) originally means swelling, and is sometimes still used with that meaning. ... When normal cells are damaged beyond repair, they are eliminated by apoptosis. ... Oncology is the medical subspecialty dealing with the study and treatment of cancer. ... Benign can refer to any medical condition which, untreated or with symptomatic therapy, will not become life-threatening. ... A premalignant condition is a disease, syndrome, or finding that, if left untreated, may lead to cancer. ... Carcinoma in situ is present when a tumor has been detected that has the characteristics of malignancy but has not invaded other tissues. ... In medicine, malignant is a clinical term that is used to describe a clinical course that progresses rapidly to death. ... Cystoscopic view of a papillary bladder tumor (top); the bladder wall is visible on the bottom right Bladder cancer refers to any of several types of malignant growths of the urinary bladder. ... Bone tumor is an inexact term, which can be used for both benign and malignant abnormal growths found in bone, but is most commonly used for primary tumors of bone, such as osteosarcoma (or osteoma). ... A brain tumor is any intracranial mass created by an abnormal and uncontrolled growth of cells either normally found in the brain itself: neurons, glial cells (astrocytes, oligodendrocytes, ependymal cells), lymphatic tissue, blood vessels), in the cranial nerves (myelin producing Schwann cells), in the brain envelopes (meninges), skull, pituitary and... Breast cancer is cancer of breast tissue. ... Cervical cancer is a malignancy of the cervix. ... Colorectal cancer, also called colon cancer or bowel cancer, includes cancerous growths in the colon, rectum and appendix. ... This article needs more context around or a better explanation of technical details to make it more accessible to general readers and technical readers outside the specialty, without removing technical details. ... Endometrial cancer involves cancerous growth of the endometrium (lining of the uterus). ... Esophageal cancer is malignancy of the esophagus. ... Cancers can affect the eye. ... Bold textA more uncommon cancer predominate in females, if found early on before symptoms, can be cured by removing Gallbladder, most often it is found after symptoms occur (abdominal pain, Jaundice) and has spread to other organs such as liver and the outlook at this point is poor. ... Head and neck cancers are malignant growths located in the oral cavity (mouth), nasal cavity, pharynx, larynx, thyroid, paranasal sinuses, salivary glands and lymph nodes of the upper neck. ... Hepatocellular carcinoma (HCC, also called hepatoma or liver cancer) is a primary malignancy (cancer) of the liver. ... Cancer of the larynx also may be called laryngeal cancer. ... Lung cancer is a cancer of the lungs characterized by the presence of malignant tumours. ... Oral cancer is any cancerous tissue growth located in the mouth. ... Pancreatic cancer (also called cancer of the pancreas) is represented by the growth of a malignant tumour within the small pancreas organ. ... Penile cancer is a malignant growth found on the skin or in the tissues of the penis, usually originating in the glans and/or foreskin. ... Å…ÄŸ Prostate cancer is a disease in which cancer develops in the prostate, a gland in the male reproductive system. ... Renal cell carcinoma, also known by the eponym Grawitz tumor, is the most common form of kidney cancer arising from the renal tubule. ... Ovarian cancer is a malignant ovarian neoplasm (an abnormal growth located on the ovaries). ... In medicine (dermatology), there are several different types of cancer referred to under the general label of skin cancer. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Testicular cancer is a type of cancer that develops in the testicles, a part of the male reproductive system. ...

Morphology: Papilloma/carcinoma - Adenoma/adenocarcinoma - Soft tissue sarcoma - Melanoma - Fibroma/fibrosarcoma - Lipoma/liposarcoma - Leiomyoma/leiomyosarcoma - Rhabdomyoma/rhabdomyosarcoma - Mesothelioma - Angioma/angiosarcoma - Osteoma/osteosarcoma - Chondroma/chondrosarcoma - Glioma - Lymphoma/leukemia Human papillomavirus (HPV) is a virus which affects humans. ... In medicine, carcinoma is any cancer that arises from epithelial cells. ... Adenoma refers to a collection of growths (-oma) of glandular origin. ... In medicine, carcinoma is any cancer that arises from epithelial cells. ... Malignant (cancerous) tumors that develop in soft tissue are called sarcomas, a term that comes from a Greek word meaning fleshy growth. ... Skin cancer, close-up of level IV melanoma Melanoma is a malignant tumour of melanocytes . ... Fibroma. ... Fibrosarcoma (fibroblastic sarcoma) is a malignant tumor derived from fibrous connective tissue and characterized by immature proliferating fibroblasts or undifferentiated anaplastic spindle cells. ... A lipoma is a common, benign tumor composed of fatty tissue. ... This article needs to be cleaned up to conform to a higher standard of quality. ... A leiomyoma (plural is leiomyomata) is a benign smooth muscle neoplasm that is not premalignant. ... A sarcoma is a cancer of the bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. ... A rhabdomyoma is a benign tumor of muscle. ... A rhabdomyosarcoma is a type of cancer, specifically a sarcoma (cancer of connective tissues), in which the cancer cells arise from skeletal muscle. ... Angiomas are benign tumors that are made up of small blood vessels. ... Angiosarcoma is a rare, malignant tumor consisting of endothelial and fibroblastic tissue that proliferates and eventually surrounds vascular channels. ... An osteoma is a new piece of bone growing on another piece, typically the skull. ... Osteosarcoma is a common primary bone cancer. ... A chondroma is a benign cartilaginous tumor, which is encapsulated with a lobular growing pattern. ... A chondrosarcoma is a cancer of the cartilage. ... A glioma is a type of primary central nervous system (CNS) tumor that arises from glial cells. ... Lymphoma is a variety of cancer that originates in the lymphatic system. ... Leukemia or leukaemia (see spelling differences) is a cancer of the blood or bone marrow characterized by an abnormal proliferation of blood cells, usually white blood cells (leukocytes). ...

Treatment: Chemotherapy - Radiation therapy - Immunotherapy - Experimental cancer treatment Chemotherapy is the use of chemical substances to treat disease. ... Clinac 2100 C accelerator Radiation therapy (or radiotherapy) is the medical use of ionizing radiation as part of cancer treatment to control malignant cells (not to be confused with radiology, the use of radiation in medical imaging and diagnosis). ... Cancer Immunotherapy is the use of the immune system to reject cancer. ... Experimental cancer treatments are medical therapies intended or claimed to treat cancer (see also tumor) by improving on, supplementing or replacing conventional methods (surgery, chemotherapy, radiation, and immunotherapy). ...

Related structures: Cyst - Dysplasia - Hamartoma - Neoplasia - Nodule - Polyp - Pseudocyst This is an article about cysts in the body. ... Dysplasia is a situation where cells have changed from their original mature differentiated type into another mature differentiated cell type as an adaptive response to exposure to chronic irritation, or to a pathogen or carcinogen. ... A hamartoma is an abnormal growth of normal cells. ... Neoplasia (literally: new growth) is abnormal, disorganized growth in a tissue or organ, usually forming a distinct mass. ... In medicine, a nodule refers to a small aggregation of cells. ... Polyp of sigmoid colon as revealed by colonoscopy. ... A pseudocyst is a pathological collection of fluid. ...

Misc: Tumor suppressor genes/oncogenes - Staging/grading - Carcinogenesis/metastasis - Carcinogen - Research - Paraneoplastic phenomenon - ICD-O - List of oncology-related terms A tumor suppressor gene is a gene that reduces the probability that a cell in a multicellular organism will turn into a tumor cell. ... An oncogene is a modified gene that increases the malignancy of a tumor cell. ... The stage of a cancer is a descriptor (usually numbers I to IV) of how much the cancer has spread. ... In pathology, Grading is a measure of the progress of tumors. ... Cancers are caused by a series of mutations. ... Metastasis (Greek: change of the state) is the spread of cancer from its primary site to other places in the body. ... In pathology, a carcinogen is any substance or agent that promotes cancer. ... Cancer research is the intense scientific effort to understand the development of cancer and identify potential therapies. ... A paraneoplastic phenomenon is a disease or symptom that is the consequence of the presence of cancer in the body, but is not due to the local presence of cancer cells. ... The International Classification of Diseases for Oncology (ICD-O) is a domain specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. ... This is a list of terms related to oncology. ...

  Results from FactBites:
Anal Cancer (1395 words)
Anal cancer, an uncommon cancer, is a disease in which cancer (malignant) cells are found in the anus.
Cancer in the outer part of the anus is more likely to occur in men; cancer of the inner part of the rectum (anal canal) is more likely to occur in women.
Stage IIIB Cancer has spread to the lymph nodes in the middle of the abdomen or in the groin, or the cancer has spread to both nearby organs and the lymph nodes around the rectum.
Anal Cancer and HPV in Gay and Bisexual Men - LGBTHealthChannel (976 words)
Anal cancer is an uncommon, often curable cancer that produces slow-growing tumors and lesions in the anus and nearby anal anatomy.
The majority of anal cancers are squamous cell carcinomas (in situ or epidermoid), which originate in the first layer of anal tissue and may spread to deeper layers.
The remaining anal cancers are basal cell carcinoma and malignant melanoma.
  More results at FactBites »



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