scholarly journals Tumor Mass Fragmentation

2020 ◽  
Author(s):  
Keyword(s):  
Tumor Mass ◽  
Mass Fragmentation

Ultrastructural Correlations between Clonal Human Tumor Colonies and in Vivo Neoplasms

1982 ◽  
Vol 40 ◽  
pp. 210-211
Author(s):  
M.J. Murphy ◽  
R.R. Price ◽  
J.C. Sloman
Keyword(s):  
Cultured Cells ◽  
Human Tumor ◽  
Cell Type ◽  
Tumor Mass ◽  
Initial Cell ◽  
Cloning Assay ◽  
Human Tumor Cloning ◽  
The Relationship

The in vitro human tumor cloning assay originally described by Salmon and Hamburger has been applied recently to the investigation of differential anti-tumor drug sensitivities over a broad range of human neoplasms. A major problem in the acceptance of this technique has been the question of the relationship between the cultured cells and the original patient tumor, i.e., whether the colonies that develop derive from the neoplasm or from some other cell type within the initial cell population. A study of the ultrastructural morphology of the cultured cells vs. patient tumor has therefore been undertaken to resolve this question. Direct correlation was assured by division of a common tumor mass at surgical resection, one biopsy being fixed for TEM studies, the second being rapidly transported to the laboratory for culture.

Die Anämie bei malignen Tumorerkrankungen

1989 ◽  
Vol 28 (06) ◽  
pp. 247-254
Author(s):  
E. Aulbert
Keyword(s):  
Malignant Tumors ◽  
Gradient Centrifugation ◽  
Tumor Resection ◽  
Hemoglobin Concentration ◽  
Limiting Factor ◽  
Novikoff Hepatoma ◽  
Tumor Mass ◽  
Lysosomal Fraction ◽  
Proliferation Activity ◽  
Morris Hepatoma

The cellular uptake and lysosomal accumulation of 67Ga-labelled transferrin within tumors of different malignancy were examined using tissue fractionation and immunological techniques. As tumor models the slowly growing Morris hepatoma 5123C, the moderately growing Novikoff hepatoma and the fast and aggressive Yoshida hepatoma AH 130 were investigated. Isolation of subcellular fractions of tumor homogenates was performed by differential centrifugation and density-gradient centrifugation. The intracellular 67Gatransferrin was found to be highly concentrated within the purified lysosomes. The transferrin within the lysosomal fraction was identified by radial immunodiffusion technique using monospecific antiserum. The accumulation of 67Gatransferrin by the tumors resulted in a faster disappearance of 67Ga-transferrin from the blood. This loss of circulating 67Ga-transferrin correlated with the proliferation activity and the spread of the tumors. Since transferrin is indispensible for the utilization of iron by the heme-synthesizing red cell precursors, transferrin concentration in the blood is the limiting factor for the utilization of iron in hemoglobin synthesis. Thus, in a further series of experiments we investigated the development of anemia in tumor-bearing rats. With increasing tumor mass a progressive fall of hemoglobin concentration was found. The anemia was more severe in the faster growing Novikoff hepatoma than in the slowly growing Morris hepatoma. The most significant reduction of hemoglobin concentration was found in the very fast growing Yoshida hepatoma. After total tumor resection hemoglobin concentration and red blood cell count normalized completely within 6-8 weeks. We conclude from these data that the uptake of transferrin by the tumor cells results in a faster disappearance of transferrin from the blood. This loss of circulating transferrin correlates with tumor mass and proliferation activity and is one of the factors responsible for the anemia seen in patients with malignant tumors.

Die Anämie bei malignen Tumorerkrankungen

1989 ◽  
Vol 28 (05) ◽  
pp. 193-200 ◽  
Author(s):  
E. Aulbert
Keyword(s):  
Cellular Uptake ◽  
Tumor Tissue ◽  
Malignant Tumors ◽  
The Other ◽  
Novikoff Hepatoma ◽  
Cellular Accumulation ◽  
Tumor Mass ◽  
Proliferation Activity ◽  
Morris Hepatoma ◽  
Cellular Incorporation

Cellular uptake of 67Ga-labelled transferrin by the tumor tissue was studied in rats with tumors of different malignancy and different tumor mass using the slowly growing Morris hepatoma 5123C, the moderately growing Novikoff hepatoma and the very fast and aggressive Yoshida hepatoma AH130. The cellular accumulation of 67Ga-transferrin was found to correlate with the proliferation activity of the tumor. The 67Ga-transferrin concentration in the very fast growing Yoshida hepatoma was 4.8 times higher than the concentration in the slowly growing Morris hepatoma. The uptake of 67Ga-transferrin by the tumors resulted in a faster disappearance of circulating 67Ga-transferrin from the blood. The rate of disappearance correlated with the proliferation activity and the spread of the tumors. Using tumors of identical size the elimination of 67Ga-transferrin from the blood was much faster in the rats with Yoshida hepatoma than in those with the slowly growing Morris hepatoma. On the other hand, using tumors of different tumor size it could be demonstrated that the rate of disappearance of 67Ga-transferrin from the blood correlated directly with tumor mass. It is concluded that cellular incorporation of transferrin within the tumor cells results in a loss of circulating transferrin, which correlates with tumor mass and proliferation of tumor. This mechanism is supposed to be the cause for the hypotransferrinemia seen in patients with malignant tumors.

scholarly journals Intrauterine Tumor Mass Caused by an Embedded Intrauterine Device: case Report

2014 ◽  
Vol 30 (1) ◽  
pp. 213-216
Author(s):  
Tomoya Hasegawa ◽  
Junya Kojima ◽  
Reiko Zaitu ◽  
Kazunori Mukaida ◽  
Rina Kato ◽  
...  
Keyword(s):  
Case Report ◽  
Intrauterine Device ◽  
Tumor Mass

scholarly journals Uveal Melanoma and Secondary Angle-Closure Crisis: A Case Report and Literature Review

2021 ◽  
pp. 476-480
Author(s):  
Tung Thanh Hoang ◽  
Tuan Anh Hoang ◽  
Peter McCluskey ◽  
John Grigg
Keyword(s):  
Retinal Detachment ◽  
Uveal Melanoma ◽  
Vision Loss ◽  
Serous Retinal Detachment ◽  
Anterior Segment ◽  
Angle Closure ◽  
Large Tumor ◽  
Tumor Mass ◽  
Healthy Female ◽  
Life Threatening

A 66-years-old Vietnamese healthy female patient presented with prolonged severe right ocular pain and complete vision loss in that eye. Anterior segment assessment including gonioscopy identified angle-closure configuration. A suspected ciliary body melanoma was seen through the pupil. Posterior segment examination revealed a large tumor mass and 360° retinal detachment (kissing configuration). An ultrasound examination was consistent with a uveal tumor. The painful, blind right eye with a tumor mass was enucleated. Histopathology confirmed a type A uveal spindle cell melanoma associated with total serous retinal detachment without evidence of tumor necrosis, epithelioid cells, scleral, or optic nerve infiltration. There was no evidence of metastasis after 1-year of follow-up. It is critically important to differentiate primary and secondary angle closure, especially in cases with life-threatening ocular malignancy as uveal melanoma.

scholarly journals A Case Report on Frontal Osteoma

Pulse ◽  
2017 ◽  
Vol 9 (1) ◽  
pp. 45-48
Author(s):  
MR Molla ◽  
F Ferdousi ◽  
DR Shankar ◽  
AKMB Karim
Keyword(s):  
Case Report ◽  
Frontal Lobe ◽  
Frontal Sinus ◽  
Clinical Findings ◽  
Complete Excision ◽  
Tumor Mass ◽  
The Right ◽  
Orbital Region

A 13 years old boy admitted with the complaint of progressive exophthalmos and gradually decreasing vision on right eye, also occasional headache and deformity on the right fronto-orbital region. Radiological & clinical findings revealed a case of frontal osteoma in the right frontal sinus extending up to right frontal lobe, eroding right roof of the orbit. Complete excision of the tumor mass was possible surgically. Biopsy confirmed a case of osteoma. Below is a discussion on diagnosis & management of frontal osteomaPulse Vol.9 January-December 2016 p.45-48

scholarly journals Pretreatment tumor mass, cell kinetics, and prognosis in multiple myeloma

Blood ◽  
1980 ◽  
Vol 55 (3) ◽  
pp. 364-372 ◽  
Author(s):  
BG Durie ◽  
SE Salmon ◽  
TE Moon
Keyword(s):  
Plasma Cells ◽  
Performance Status ◽  
Cell Mass ◽  
Elevated Serum ◽  
Labeling Index ◽  
Central Nervous System Relapse ◽  
Prognostic Information ◽  
Tumor Mass ◽  
Bone Marrow Plasma ◽  
Subtype A

Abstract One-hundred fifty patients with multiple (plasma cell) myeloma had pretreatment tumor mass staging, and 79 also had measurement of the pretreatment labeling index (LI%). There were clear differences in survival by pretreatment stage of disease. The pretreatment LI% of bone marrow plasma cells was an independent prognostic factor both in single factor and multivariate regression analyses, including myeloma stage (p less than 0.02). Other important prognostic factors (multivariate) included performance status, serum creatinine, presence of Bence Jones protein, age, and kappa/lambda subtype. A LI% of less than 1% was associated with long survival in each patient group. Patients with benign gammopathy had excellent survival and very low labeling indices. A pretreatment LI% of greater than 3% in high cell mass patients with a high total number of DNA synthesizing cells (S) conferred a very poor prognosis (p = 0.002). This subgroup of patients with high S values also had a high incidence of central nervous system relapse (27%), Bence Jones proteinuria, and elevated serum uric acid levels. We conclude that the pretreatment labeling index provides helpful prognostic information in addition to tumor mass staging.

Bioweapons of Tumor Mass Destruction?

2003 ◽  
Vol 21 (16) ◽  
pp. 3011-3012 ◽  
Author(s):  
Martin J.S. Dyer
Keyword(s):  
Mass Destruction ◽  
Tumor Mass
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