Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0699790 (colon cancer)
 28,837 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

1. If endoscopy leads to the suspicion of an exulcerated and/or polypous carcinoma of the colon, surgical intervention is the primary therapy. Histological classification of the tumour should be effected by means of endoscopic biopsy. 2. (Familial) adenomatosis of the colon requires colectomy. 3. Broad-based polypi resembling a lawn where a large wound area must be expected by electrocoagulation (risk of perforation), and pediculate polypi of the (rare) size of 3 cm and more (risk of haemorrhage) should not be resected via endoscopy but by surgery. 4. Solitary or multiple polypi of the colon not covered by points 1 to 3 above, are primarily for reasons of diagnosis an indication for endoscopic polypectomy. Biospy in the case of adenomas to clarify the histological structure and to obtain qualitative and quantitative information regarding malignant degeration, must be discouraged (""partial diagnosis''.) 5. Basing on the current state of knowledge it is assumed that effective prohylaxis of cancer is achieved by the endoscopic removal of benign adenomas of the colon. 6. It is also assumed that effective cancer therapy can be realised by the endoscopic removal of adenomas which have already undergone malignant degeration (adenoma with severe cellular atypia, invasive differntiated adenocarcinoma in the head of the adenoma.)
 ...
PMID:[Endoscopic diagnosis and therapy of colorectal tumours (author's transl)]. 3 56

The periodic acid-thionin Schiff/potassium hydroxide/periodic acid-Schiff (PAT/KOH/PAS) procedure has been used to investigate the histochemical staining characteristics of the mucins found in adenocarcinoma and villous lesions of the large intestine. The 46 blocks examined represented 58 lesions from 37 patients, all of whom had had resections for carcinoma of the colon. tin sharp contrast to normal colon, none of the adenocarcinomas stained red with the PAT/KOH/PAS. With two exceptions the poorly and moderately differentiated adenocarcinomas stained blue, whereas of the well differentiated lesions half were blue and half purple. The malignant villous lesions demonstrated the same trends, although a larger percentage were purple. None of the benign lesions stained blue. It is suggested that malignancy in the colon is accompanied by an increase in blue staining in the PAT/KOH/PAS technique and that such staining may be of value in the interpretation of highly atypical adenoma where it might identify the onset of malignancy. This change in staining indicates a distinct alteration in the chemistry of the mucins which we interpret as a reduction in the degree of side chain O-acylation of their constituent sialic acids.
 ...
PMID:A new histochemical technique of use in the interpretation and diagnosis of adenocarcinoma and villous lesions in the large intestine. 7 51

The authors present a study of 50 patients with adenocarcinomas of the colon and rectum, patients with gastric adenocarcinomas, and 30 healthy individuals as a control group. In all subjects the following parameters were determined: total number of lymphocytes in the peripheral blood, T lymphocytes, T-active lymphocytes, and B lymphocytes. A study of the test for lymphoblastic transformation (TTL) with phytohemagglutinin (PHA) stimulation and the determination of alpha-fetoprotein (AFP) and carcino-embryonic antigen (CEA) were also carried out. In patients with gastric adenocarcinoma the results revealed a lymphopenia, especially at the expense of T and T-active lymphocytes, as well as a depression (in 73 per cent) of the lymphocytic response to the PHA stimulation. Patients with carcinoma of the colon showed significant results in the T-active lymphocyte population. In both neoplastic situations the determination for alpha-fetoprotein was negative, while the CEA presented a clear correlation with the evolutive stage of the tumor, being more demonstrative in the tumors located in the colon and rectum.
 ...
PMID:[Determination of the lymphocytic and oncofetal antigen subpopulations in patients with adenocarcinomas of the stomach and of the colon and rectum (author's transl)]. 9 70

Palmar and plantar keratoses developed in seven patients many years after ingeston of trivalent inorganic arsenic. Six had basal cell carcinoma (superficial multicentric type in five), carcinoma "in situ" or squamous cell carcinoma of the skin. Two had systemic carcinoma--one, bilateral breast adenocarcinoma and one, carcinoma of the colon. From these observations and from the findings of a review of the literature, there seems no question that long-term arsenic ingestion can cause palmar and plantar keratoses and skin cancer, particularly basal cell carcinoma of the superficial multicentric type, usually on the torso. It is suspected but not proved to cause other cancers. Although over the last 50 years general exposure to arsenic has greatly decreased, particularly that from insecticides, this element is still found occasionally in drinking water (naturally or as a smelter byproduct), in certain foods and in cigarette smoke.
 ...
PMID:Arsenic and cancer. 12 22

A clinical trial of the oral form of VP 16-213 (NSC-141540), a semisynthetic podophyllotoxin, was undertaken. In 20 patients, treatment was started at 200 mg/day p.o. for 5 days; courses were repeated after a rest period of 16 days. Five patients were treated at the same dose, repeated with only 9-day rest periods. Subsequently, 65 patients were given 300-400 mg/day for 5 days, with rest periods of 9 days between courses. The side effects encountered included anorexia, nausea and vomiting, stomatitis, diarrhea, leukopenia, thrombocytopenia, alopecia, and pruritus. Substernal discomfort with or without palpitations was reported by 18 patients; no explanation for this symptom could be found. No complete remissions (CR) were observed. Parital remissions (PR) and improvement (IMP) were seen as follows: small cell carcinoma, lung (10 patients)--2 PR, 3 IMP; adenocarcinoma, lung (4 patients)--1 PR; alveolar cell carcinoma, lung (1 patient)--1 IMP; mesothelioma (4 patients)--1 IMP; ovarian cancer (12 patients)--3 PR, 3 IMP; breast cancer (20 patients)--4 IMP; colon cancer (8 patients)--2 IMP; bladder cancer (4 patients)--2 IMP; histiocytic lymphoma (7 patients)--2 PR, 3 IMP; chronic myeloid leukemia (1 patient)--1 IMP.
 ...
PMID:A clinical trial of the oral form of 4'-demethyl-epipodophyllotoxin-beta-D ethylidene glucoside (NSC 141540) VP 16-213. 16 75

This paper gives a detailed description of the microtest leukocyte adherence inhibition technique, as well as the results obtained with blood specimens coded by impartial observers. Three coded blood specimens from patients with colon cancer, pancreatic cancer, and melanoma were tested against crude membrane preparations of pancreatic and colon adenocarcinoma tumors. No tissue type-specific reactivity was observed. The inability to demonstrate specific reactivity was due to extensive variability observed within each test. The extensive variability resulted from time constraints of the workshop that necessitated deviations from the normal procedure.
 ...
PMID:Demonstration of the microtest version of the leukocyte adherence inhibition assay. 36 88

Ninety patients who had epithelial polyps or carcinoma of the large bowel and underwent at least 2 colonscopic examinations were studied. The cases were divided into three groups: patients who ;ad only one polyp; those in whom more than one epithelial polyp were found and those who had adenocarcinoma of the large bowel and underwent follow-up colonoscopic examinations. The distribution of the polpys was plotted as to type and distribution in the colon. There seemed to be a trend for the polyp found in follow-up examinations to be located proximal to the splenic flexure. In this regard it was noted that the subsequently found polyps in group II were smaller than those removed on the initial colonoscopic examination. No relationship could be found between any histologic type of epithelial polyp and the presence of carcinoma.
 ...
PMID:Epithelial polyps of the large bowel: a pathological and colonoscopic study. 39 95

Two patients with colonic adenocarcinoma and Streptococcus bovis endocarditis suggested a possible association between the two. Non-enterococcal Group D streptococci were isolated from fecal cultures of 11 of 105 controls, 35 of 63 patients with carcinoma of the colon, seven of 25 with inflammatory bowel disease, four of 21 with non-colonic neoplasms and five of 37 with other gastrointestinal disorders. All such streptococci examined for lactose fermentation were S. bovis. The prevalence of S. bovis in fecal cultures from patients with carcinoma of the colon was significantly increased (P less than 0.001) as compared to that in controls, and also to all other groups (P less than 0.001). No other group had results significantly different from those of controls (P less than 0.05) although patients with inflammatory bowel disease were more frequently carriers. The carrier state was unrelated to age, hospitalization status, colonic stasis, gastrointestinal bleeding or recent barium-enema examination. The implications of this association are unknown.
 ...
PMID:Association of Streptococcus bovis with carcinoma of the colon. 40 87

An abnormal zone of DNA synthesis at the surface and upper portion of colonic crypts has been thought to be related to future adenomatous polyp development and to express a regulatory defect in the mechanism that normally terminates synthesis in the upper third. As part of a screening program for early colon cancer detection, patients over 40 years of age found to have occult blood in their stool (Ho+) are evaluated by barium enema and colonscopy as well as isotopic incorporation studies of biopsy and lavage specimens. This proliferative abnormality occurred most frequently among patients with an adenoma or adenocarcinoma although the frequency varied among simultaneous biopsies from the same patient. Specimens from Ho+ patients with a tumor often contained small areas of focal atypism in the biopsy or fragments of atypical epithelial cells in the lavage sample. A small group of Ho+ patients in whom no overt neoplasm could be detected also demonstrated surface-labeled epithelial cells with morphological alteration of these cells. Based on the microscopic findings presented, continued surveillance of these patients is suggested, as well as extension of these studies to include other high risk groups.
 ...
PMID:Early detection of colonic neoplasia in patients at high risk. 59 71

The authors report the case of a 58-year-old woman suffering from an intra-thyroid metastasis of a carcinoma of the colon for which she had undergone surgery two and a half years previously. This adenocarcinoma was, furthermore, clinically and radiologically "cured". The metastasis was accompanied by a cervical swelling and paralysis of the left recurrent laryngeal nerve, the reason for the consultation. Subsequent examinations revealed multiple lung metastases. Despite combined treatment with radiotherapy and chemotherapy, there was later development of further multiple metastases, in particular cerebral. The authors review the literature concerning this type of tumour. Particular emphasis is placed upon tumours with a high malignant potential, such as the naevo-carcinoma, together with tumours of neighbouring structures, in particular the upper airway and digestive tract, all of which may spread to the thyroid. There have nevertheless been other cases of thyroid metastasis of a carcinoma of the colon. One of the very first was that of Rankin and Fortune, published in 1936.
 ...
PMID:[Intra-thyroid metastasis of a colonic carcinoma (author's transl)]. 60 41


1 2 3 4 5 6 7 8 9 10 Next >>