Together, this information is useful to evaluate the prognosis and to choose the best treatment. Cytogenetics and immunohistochemistry are other types of tissue tests. These tests provide information about molecular changes (such as mutations, fusion genes and numerical chromosome changes) and may thus also indicate the prognosis and best treatment. Cancer diagnosis can cause psychological distress and psychosocial interventions, such as talking therapy, may help people with this. Classification
Cancers are classified by the type of cell that the tumor cells resemble and is therefore presumed to be the origin of the tumor. These types include:

Carcinoma: Cancers derived from epithelial cells. This group includes many of the most common cancers and include nearly all those in the breast, prostate, lung, pancreas and colon. Sarcoma: Cancers arising from connective tissue (i.e. bone, cartilage, fat, nerve), each of which develops from cells originating in mesenchymal cells outside the bone marrow. Lymphoma and leukemia: These two classes arise from hematopoietic (blood-forming) cells that leave the marrow and tend to mature in the lymph nodes and blood, respectively. Germ cell tumor: Cancers derived from pluripotent cells, most often presenting in the testicle or the ovary (seminoma and dysgerminoma, respectively). Blastoma: Cancers derived from immature "precursor" cells or embryonic tissue.Cancers are usually named using -carcinoma, -sarcoma or -blastoma as a suffix, with the Latin or Greek word for the organ or tissue of origin as the root.
A SBO may be caused when an adhesion pulls or kinks the small intestine and prevents the flow of content through the digestive tract. Obstruction may occur 20 years or more after the initial surgical procedure, if a previously benign adhesion allows the small bowel to twist spontaneously around itself and obstruct. Without immediate medical attention, SBO is an emergent, possibly fatal, condition. According to statistics provided by the National Hospital Discharge Survey approximately 2,000 people die every year in the US from obstruction due to adhesions. Depending on the severity of the obstruction, a partial obstruction may relieve itself with conservative medical intervention. Many obstructive events require surgery, however, to loosen or dissolve the offending adhesion(s) or to resect the affected small intestine. Pelvic adhesions
Pelvic adhesions are a form of abdominal adhesions in the pelvis. In women they typically affect reproductive organs and thus are of concern in reproduction or as a cause of chronic pelvic pain. Other than surgery, endometriosis and pelvic inflammatory disease are typical causes. Surgery inside the uterine cavity (e.g., suction dilation and curettage, myomectomy, endometrial ablation) may result in Ashermans syndrome (also known as intrauterine adhesions, intra uterine synechiae), a cause of infertility. The impairment of reproductive performance from adhesions may happen through many mechanisms, all of which usually stem from the distortion of the normal tubo-ovarian relationship.