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Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The advantages of CT scan over lymphangiography are numerous and significant. The accuracy of CT scan was virtually identical to lymphogram for the detection of para-aortic lymph node involvement; however, CT provides a better means of assessing the true extent of disease. In such cases it is possible to determine whether the neoplastic process involves retroperitoneal structures such as the kidneys, ureters, pancreatic region, hilum of the liver, or the major vessels. Moreover, this excellent definition permits accurate follow-up assessment of therapy. Finally, CT is a noninvasive examination and does not require significant technical expertise, and the examination is easily reproducible following any time period from the initial examination. Finally, although we have not specifically discussed biopsy procedures, the CT scan is an excellent means for guiding biopsy procedures even for retroperitoneal abnormalities, perhaps precluding the necessity for laparotomy in order to provide histologic diagnosis of disease (Fig. 11). The disadvantages of CT are several. Of course, the acquisition of CT equipment is expensive and the cost effectiveness has not yet been proven. The most significant disadvantage is its inability to resolve or detect neoplastic disease within normal-sized lymph nodes. This was not a significant problem in our series, because our series contained only a few cases of suspected metastatic disease as opposed to lymph node neoplasms. The advantages of lymphography have been discussed by other authors. Because of the better spatial resolution of lymphograms, it is possible by proper interpretation to distinguish between neoplastic disease and lipogranulomatous changes. In a few cases in our series, this did not prove to be true; however, this may have been due to deficiencies in our interpretations (two cases of lymphoma were called positive for neoplasm, but proved to be lipogranulomatous changes by biopsy). Secondly, surveillance films may be easily and cheaply obtained to detect recurrences of disease. In addition, lymphography also provides the opportunity for biopsy of lymphoma masses, but to date this has only been accomplished by skinny-needle biopsy aspirations and not by large core biopsy techniques. After reviewing the literature and evaluating our data, we believe that several recommendations are appropriate with respect to the roles of computed tomography and lymphography. We agree with the previously stated concept that CT should be used for screening for lymphoma; however, we disagree that lymphograms have a greater advantage over CT in the biopsy-proven cases of lymphoma. Rather we believe that CT is better suited than lymphography for those cases with biopsy proven lymphoma. CT is better able to accurately localize the lymph node masses for surgeons if the surgical approach is desired and better able to define the extent of the disease throughout the abdomen. As a result of this it is capable of providing a better follow-up for therapy...
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PMID:Clinical comparison of computed tomography and lymphangiography for detection of retroperitoneal lymphadenopathy. 46 41

Under study was the reaction of suppression of leucocytes migration in 28 patients with melanoma and in 15 healthy donors. In patients with the local neoplastic process the suppression of their lymphocytes migration under the melanoma extract influence was much more frequently observed and wos more significantly pronounced than in healthy donors and patients with metastases, especially in cases of wide tumor spread. Enhanced migration noted in a number of cases was associated with an unfavourable clinical course. Likewise, the enhanced migration was observed 2--3 weeks following resection of primary melanoma and in one case--at the end of the chemotherapy course.
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PMID:[Leukocyte migration inhibition reaction in melanoma]. 63 68

Heat-induced inhibition of erythrocyte sedimentation (HIES) was examined in 158 cases. HIES is significantly lower in patients with a liver cell damage isolated or due to metastases of a neoplastic process in comparison to that in patients suffering from inflammation or malign tumor not involving the liver. Generally, HIES depends upon the concentration of lysophosphatidyl choline (lysolecithin) which is set free in plasma by lecithin-cholesterol-acyltransferase (LCAT) during incubation. In patients with lever cell damage, LCAT is diminished. HIES is being influenced by several factors: Lysophosphatidyl choline is bound to albumin, and this prevents its reaction on the erythrocyte surface. Lysophospholipase reduces the concentration of lysophosphatidyl choline in the plasma by splitting off its fatty acid in the alpha-position. Specific serum proteins, the so-called agglomerines, which are responsible for the acceleration of erythrocyte sedimentation, are counteracting the HIES. The concentration of albumin and agglomerines in plasma and the activity of lysophospholipase are subject to physiologically and pathologically caused deviations. Thereby, HIES is being influenced individually at varying degrees. This makes it difficult to estimate the LCAT activity which represents the principal cause of HIES. As a consequence, HIES seems not to be suitable for clinical diagnostics.
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PMID:[Diagnostic significance of heat-induced inhibition of erythrocyte sedimentation (author's transl)]. 71 17

The obstetrician-gynecologist is frequently the only physician to attend women during their reproductive years. Malignant disease outside the pelvic organs is a fairly frequent occurence in this age group. Certain findings in the patient's history and physical examination can suggest malignant disease. The routine laboratory examination can also provide indications of the presence of a neoplastic process. Once this process is suspected, histologic proof of malignancy must be obtained before further staging and therapy are considered. The extent of the disease is important for the planning of therapy, i.e., whether it is to be surgery, radiotherapy, chemotherapy or some combination of the three. Adjuvant chemotherapy is recognized as a form of treatment designed to eradicate micrometastases, prevent the occurrence of subsequent clinical metastatic disease and, as a result, improve survival.
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PMID:An approach to general oncology: principles and procedures. 97 51

Following the investigation on the correlation between scintigraphic pictures and histopathologic findings in 66 patients with suspected bronchial carcinoma, 84% of the scannings were positive and the data relative to the so-called "false negative" cases was analyzed. The presence of hilar or mediastinal lymph node metastases, histologically ascertained in about one-third of the patients, appeared significant; and a restricted accumulation of the radio-element was evident in 70.5% of the cases. In 10 of the cases with negative scintigraphic findings, pictures of reactive or hyperplastic lymphadenitis (almost all radiologically relievable) were obtained. Therefore, if it cannot be logically concluded that the negative scintigraphic findings at the mediastinal level indicate the absence of metastases in the lymph nodes, thus indicating surgery (or preventive mediastinoscopy), positive finding seem to be synonymous with extrapulmonary diffusion of the neoplastic process, with direct implication in determining the operability of the patient.
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PMID:[ Correlation between histopathologic and scintigraphic findings (employing 67Ga) in relation to the surgical indication for bronchial carcinoma (author's transl)]. 100 8

The blood supply of the greater omentum was studied using selective digestive angiography in 450 cases. Comparison of the radiology and the anatomical appearances showed that their are two independent systems, right and left, the size of which is variable from one subject to another. These blood supplies are united by variable anastomoses which are difficult to demonstrate by arteriography. However, the classical anastomotic arterial circle of the greater curvature, between the right and left gastro-epiploic arteries was never found. The pathology of the greater omentum is of two types: Tumoral pathology: the demonstration of epiploic metastases is the most frequent finding in pathological cases. Its practical and prognostic importance is very great for it contra-indicates laparotomy. Associated pathology: the greater omentum reacts to any infective or neoplastic process of the abdominal cavity, such as "sentinel loop". These topographic changes should orient analysis of the films towards a given region and lead one to suspect some disease yet undiagnosed or not very obvious on arteriography.
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PMID:[Epiploic arteries. Normal and pathological radiological appearances (author's transl)]. 112 19

27 patients suffering from disseminated carcinoma of the breast with at least two visceral metastases, and two had become resistant to conventional chemotherpy and hormones, received a combination of, in the present trial, vincristine followed by cyclophosphamide with 5-fluoro-uracil. Chemotherapy was administered intermittently: each cycle of treatment lasted 6 days and was followed by a period without treatment of 25 days. Haematological tolerance was satisfactory. No serious incidents occurred during two years use of the combination. 20 out of 27 patients showed objective tumour regression of more than 50 p.cent lasting for more than 6 months, whilst 9 showed apparent complete regression of the malignant lesions. There was one complete failure. Chemotherapy was continued in all cases after regression of the neoplastic process was obtained.
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PMID:[Chemotherapeutic combinations of mutually potentializing drugs. 1-Application to the treatment of breast cancers]. 112 34

The prevalence of neural elements in prostatic carcinoma and their effects on the behavior of the lesion have recently been recognized. Recent reports suggest that chromogranin-A- and neuron-specific enolase-expressing tumors have an earlier progression and a lower response rate to hormonal therapy. The extreme presentation of this tumor is presumed to be small cell carcinoma of the prostate. This bombesin-secreting tumor, which has a characteristic clinical picture of early visceral involvement, wide-ranging metastases, and a relatively low rate of expression of PSA and PAP, is highly responsive to chemotherapy. The relatively high rate of expression of neural elements in primary prostatic carcinoma is discordant with the low frequency of clinical small cell carcinoma of the prostate. In order to account for these differences, one can assume that neural elements may play a role in the progression of this disease by either developing their own neoplastic process (small cell carcinoma of the prostate) or, in the majority of cases, causing paracrine progression of the tumor. Bombesin is typically secreted by small cell carcinoma of the lung and possibly by the prostate. It has been shown to be a growth factor mediating the progression of this disease in a number of experiments. Preclinical data demonstrate increased invasiveness and increased proliferation associated with bombesin in the treatment of prostatic carcinoma. Based on the hypothesis that neural peptides may be important mediators of androgen-independent growth of prostatic carcinoma as well as predicting poor prognosis, inhibition of these factors may represent a therapeutic strategy of relevance for the treatment of patients with prostatic carcinoma.
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PMID:The inhibition of the paracrine progression of prostate cancer as an approach to early therapy of prostatic carcinoma. 133 63

Malignant tumours both of the pancreatoduodenal zone and of other organs situated close to or remote from it occupy a certain place among various etiopathogenetic factors of acute pancreatitis. Complication of the neoplastic process of these organs by acute carcinogenic pancreatitis (ACP) has an effect on the clinical picture of the disease as well as on the therapeutic tactics and the outcomes of the treatment. According to the authors' data (30 patients), ACP occurs in primary carcinoma of the pancreas and in its secondary involvement (metastases and growth of tumours of other organs into the pancreatic tissue). The article discusses the causative factors and clinical forms of ACP, the specific features of their diagnosis and therapeutic tactics. Purposeful nonoperative and operative treatment of ACP makes it possible to reduce the mortality in malignant diseases and prolong the patients' survival.
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PMID:[Acute pancreatitis in primary and metastatic tumors of the pancreas]. 171 52

The present work evaluates the results obtained in a group of 360 patients with laryngeal-glottic tumors (classification T1/T2-N0-M0) who, in the last 10 years, have undergone direct microlaryngoscopy surgery employing a CO2 Laser. In the T1 glottic carcinomas the neoplasm was limited to the vocal cord on one side or it involved the anterior commissure and, most likely, the vocal cord on the opposite side; in T2 glottic tumors the extension reached the hypoglottic region and/or the Morgagni ventricle and the false vocal cords on one or both sides but without compromising laryngeal motility. The five year healing rate for the T1 tumors proved to be 84.7% while it was 74% for the T2 forms. In 36 cases complications were found which can be broken down as follows: - limited local recurrences (13 patients) requiring subsequent direct microlaryngoscopy; - regional lymph node metastases (6 patients) without reproduction of the primary neoplasm; in general (5 of the 6 cases) these patients underwent lateral neck dissection; - spreading of the neoplastic process (17 cases) which made total laryngectomy with lateral neck dissection necessary; this procedure was performed in 15 cases. When these subsequent surgical procedures are also taken into account the percentage healing rises to 94.3% for T1 glottic tumors and to 84.9% for T2. Detailed analysis of the case study, comparison with the data found in the relative literature regarding patients treated with traditional techniques, a series of observations on the advantages and disadvantages inherent to the techniques employed have all led to the conclusion that the use of a CO2 laser in the treatment of laryngeal tumors gives excellent results in terms of prognosis. Moreover, this technique offers significant advantages over the traditional methods and constitutes a reliable technique for partial laryngectomies as long as the indications are accurately applied and the proper techniques used.
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PMID:[Use of CO2 laser in conservative surgery of glottic tumors]. 189 68


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