scholarly journals Ovarian papilloma

2020 ◽  
Vol 6 (7-8) ◽  
pp. 819-821
Author(s):  
. Stewar ◽  
. Paton

By its structure, the papilloma is the borderline between malignant and benign tumors; but in clinical terms it is wrong to classify it as a type of malignant tumor.

2017 ◽  
Vol 22 (5) ◽  
pp. 246-249
Author(s):  
M. N Kulikova ◽  
Tatyana N. Popova ◽  
A. S Tolstokorov ◽  
E. U Osincev ◽  
E. N Kurochkina

The incidence rate of thyroid cancer is increasing, especially among young and middle-aged people. In most cases a malignant tumor can be diagnosed at the background of multinodular goiter. Differential diagnosis of malignant and benign tumors of the thyroid presents considerable difficulties. In this situation the decision on the extent of the surgical intervention seems to be important. In the article there are described features of the diagnosis and the choice of the surgical intervention for thyroid cancer associated with multinodular goiter. The morphological examination is the decisive method of diagnosis. The decision on the extent of the operative measure should be both individualized for each particular patient and proceed from the principles of oncological radicalism and functional effect.


2001 ◽  
Vol 19 (3) ◽  
pp. 676-681 ◽  
Author(s):  
C. Stefanadis ◽  
C. Chrysochoou ◽  
D. Markou ◽  
K Petraki ◽  
D. B. Panagiotakos ◽  
...  

PURPOSE: The aim of this study was to investigate the existence of any thermal difference between malignant tumors and inflammatory benign lesions of the human urinary bladder and to determine whether it correlates with tumor angiogenesis quantification. PATIENTS AND METHODS: A new method, developed in our institute, is introduced to detect temperature in human urinary bladder, in vivo. This method is based on a thermography catheter. We calculated the differences of the temperature of the solid tumor and of a normal area (ΔT) on 20 subjects (mean age, 72.5 years; 95% confidence interval [CI], 68.5 to 76.4). According to the biopsy histology, Eight (40%) patients had benign tumors, and 12 (60%) had malignant tumors. RESULTS: We found significant differences of ΔT between patients with benign and malignant tumor (P < .001). Also, differences were found for the mean values of angiogenesis level between malignant and benign tumors (P = .0261), and a moderated positive correlation was estimated between the degree of angiogenesis and ΔT (P = .02). Based on logistic regression analysis, we found that a 1-degree increase of ΔT triples the odds of a patient having a malignant tumor (odds ratio = 2.91; 95% CI, 1.97 to 7.78; P < .001), adjusted for the degree of angiogenesis (P = .0236) and the grade of tumor (P < .001). A threshold point of ΔT = 0.7°C was determined, with sensitivity 83% and specificity 75%. CONCLUSION: These findings suggest that the calculated difference of temperature between normal tissue and neoplastic area could be a useful criterion in the diagnosis of malignancy in tumors of the human urinary bladder.


Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
CA López-Moreno ◽  
LR Quintanilla ◽  
GLB Serrano ◽  
QE Rosales ◽  
FJA Pérez ◽  
...  

2017 ◽  
Vol 0 (2) ◽  
pp. 30-34
Author(s):  
Mykola Korzh ◽  
Volodymyr Radchenko ◽  
Frieda Leontyeva ◽  
Volodymyr Kutsenko ◽  
Bogdan Shevtsov ◽  
...  

2021 ◽  
pp. 20-23
Author(s):  
R. Adityan ◽  
Sajith Selvaganesan

Magnetic Resonance Spectroscopy (MRS) is used in diagnostic imaging for disease metabolism evaluation. The H MRS is highly used because of the abundance, high sensitivity, etc. The various clinical implementation includes whole-brain MRS is used in measuring metabolites of different brain areas simultaneously. The breast MRS is used in malignant and benign tumors differentiation by the total choline compound. The prostate MRS is used to map the metabolites like citrate, choline, and creatinine. For spinal cord MRS, the myoinositol and N acetyl aspartate were 31 23 1 considered markers for various diseases. The MRS uses nuclei like P, Na, and H for metabolic and biochemical evaluation of cardiac muscles. The liver MRS spectrum has mainly methylene group of lipid, methyl groups of choline, and water. The MRS measures choline, creatinine, lactate, and lipid peaks in uterine leiomyoma and myometrium. Hence there are organ-specic metabolites used as a reference to map the metabolic process by using spectroscopy, making it one of the commonly preferred technique.


2016 ◽  
Vol 88 (4) ◽  
pp. 330 ◽  
Author(s):  
Luca Leone ◽  
Paola Fulvi ◽  
Giulia Sbrollini ◽  
Alessandra Filosa ◽  
Enrico Caraceni ◽  
...  

Introduction: Testicular benign tumors are very rare (&lt; 5%). Testicular Angiofibroma (AF) is one of those, however the gold standard of treatment and follow-up is still unclear. Case report: A 47 years-old man with only one functioning testis was referred to our clinic for a palpable right testicular mass and atrophic contralateral testis. Patient underwent testis-sparing surgery with inguinal approach and intraoperative frozen sections examination with diagnosis of AF. Final histology confirmed AF. Post-operative follow-up was uneventful. Clinical and ultrasonographic follow-up was negative after 8 months. Conclusion: We report a conservative surgery in a patient with AF of the solitary testis. AF is a benign para-testicular fibrous neoplasm that could be misinterpreted as malignant tumor and treated with orchiectomy. Testis-sparing surgery is recommended in this case with intraoperative pathological examination. The excision of the mass is enough but in front of a possible recurrence a long follow-up is advisable.


2020 ◽  
Author(s):  
Lucen Jiang ◽  
Jianghuan Liu ◽  
Qingzhu Wei ◽  
Yiyang Wang

Abstract Background Karyopherin α 2 (KPNA2), a member of the Karyopherin α family, has been observed in several cancers but lack substantial investigation in malignant bone tumors. The purpose of the current study was to evaluate KPNA2 expression level and its utility as a novel diagnostic biomarker in osteosarcomas and their malignant bone tumor mimickers, such as chondrosarcomas and Ewing sarcomas.Method We investigated the expression of KPNA2 protein by immunohistochemistry on paraffin embedded surgical specimens from 217 patients with malignant and benign tumors of bone, including 81 osteosarcomas, 42 chondrosarcomas, 9 Ewing sarcomas, 28 osteoid osteoma, 20 osteochondroma and 37 Chondroblastoma. Immunoreactivity was scored semi quantitatively based on stain extent and intensity.Results Seventy one of 81 (87.7%) osteosarcomas, zero of 42 (0%) chondrosarcomas and one of 9 (11.1%) Ewing sarcomas showed immunoreactivity for KPNA2. Negative KPNA2 expression was observed in all of benign bone tumors. Much more positive expression of KPNA2 was found in osteosarcomas as compared with chondrosarcomas and Ewing sarcomas. The sensitivity and specificity of KPNA2 immuno-expression for osteosarcoma was 87.7% and 100%, respectively. In several subtypes of osteosarcomas, immunohistochemical expression of KNA2 was more frequent in osteoblastic (94.5%), with 39 (70.9%) showing strong-intensity staining. KPNA2 positivity was observed in eleven of 13 (84.6%) chondroblastic, three of 6 (50%) fibroblastic, three of 4 (75%) telangiectatic and two of 3 (66.7%) giant cell-rich osteosarcoma. Stronger-intensity staining was observed in osteoblastic osteosarcoma.Conclusion KPNA2 is most frequently expressed in osteosarcomas, particularly in osteoblastic and chondroblastic tumors, but is rarely positive in chondrosarcomas and Ewing sarcomas. This feature may have diagnostic value since it is very useful for distinguishing between osteosarcomas and other bone sarcomas mimickers. This report supports KPNA2 as a novel marker for the diagnosis of osteosarcoma.


2020 ◽  
Vol 129 ◽  
pp. 109047 ◽  
Author(s):  
Takeshi Kamitani ◽  
Koji Sagiyama ◽  
Osamu Togao ◽  
Yuzo Yamasaki ◽  
Tomoyuki Hida ◽  
...  

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