Thermal Simulations of Cancerous Breast Tumors and Cysts on a Realistic Female Torso

2021 ◽  
Author(s):  
Francisco J Gonzalez
Keyword(s):  
Clinical Diagnosis ◽  
Computational Models ◽  
Infrared Imaging ◽  
Malignant Tumors ◽  
Diagnostic Technique ◽  
Breast Tumors ◽  
Benign Tumors ◽  
Temperature Pattern ◽  
Thermal Pattern ◽  
Thermal Simulations

Abstract Thermography as a clinical imaging technique has been around for several decades, however it has not become a common diagnostic technique mainly due to its low specificity. The development of computational models of heat transfer in biological tissue can provide a deeper knowledge of healthy and non-healthy thermal patterns could increase the usefulness of thermography in clinical diagnosis. In this work the thermal pattern of cancerous and benign breast tumors are calculated through finite element computer simulations using a realistic female human torso. The simulation results show a thermal pattern which is consistent with infrared images of female subjects and it is not present in simulations performed using other approximate geometries of the breast. A parametric study using cancerous tumors and cysts as a function of size and depth show that the temperature over the skin closest to the tumor decreases for benign tumors while it increases for malignant tumors, also the temperature patterns show a 20% deviation from thermal simulations using a hemispherical breast model. This result indicates that there is a strong geometric component in the human temperature pattern. These results are a first step to understand benign and malignant thermal processes in the breast which might help increase the usefulness of infrared imaging in breast clinical diagnosis.

scholarly journals Study on the Effect of MRI in the Diagnosis of Benign and Malignant Thoracic Tumors

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Yan Li ◽  
Yangli Sui ◽  
Mingyan Chi ◽  
Jie Zhang ◽  
Lin Guo
Keyword(s):  
Malignant Tumors ◽  
Compliance Rate ◽  
Breast Tumors ◽  
Diagnostic Value ◽  
Diagnostic Sensitivity ◽  
Good Effect ◽  
Benign Tumors ◽  
Mediastinal Tumors ◽  
Chest Wall Tumors ◽  
Diagnostic Sensitivity And Specificity

In order to investigate the effectiveness and accuracy of magnetic resonance imaging (MRI) in the diagnosis of benign and malignant thoracic tumors, the research retrospectively selected 80 patients with thoracic tumors admitted from May 2019 to May 2020 as the study subject and all patients were underwent MRI detection. Using pathological diagnostic results as the gold standard, the research analyzed the detection of benign and malignant thoracic tumors by MRI, as well as the diagnostic sensitivity and specificity. After pathological diagnosis, there were 35 malignant tumors and 45 benign tumors. 41 cases of malignant tumors and 39 cases of benign tumors were diagnosed by MRI, with a diagnostic sensitivity of 80.00%, a diagnostic specificity of 71.11%, and a diagnostic compliance rate of 75.00%. In the MRI diagnosis of tumors in different parts of the chest, the diagnostic sensitivity for lung tumors, mediastinal tumors, chest wall tumors, and esophageal tumors was 83.33%, 71.43%, 83.33%, 75.00%, and 87.50%, respectively, and the specificity was 66.67%, 77.78%, 57.14%, 50.00%, and 91.67% according to and breast tumors, respectively. And the accuracy was 73.33%, 75.00%, 69.23, 62.50%, and 90.00%, respectively, with the highest diagnostic sensitivity, specificity, and accuracy for breast tumors. MRI has a good effect on the diagnosis of benign and malignant thoracic tumors and has a high diagnostic value, which is helpful to identify the location, nature, source, and lesion scope of the tumor. It is safe and worthy of promotion.

scholarly journals Clinico-pathological correlation of lacrimal caruncle tumors: a retrospective analysis over 22 years at the University Eye Hospital Bonn

2021 ◽  
Author(s):  
A. C. Clemens ◽  
K. U. Loeffler ◽  
F. G. Holz ◽  
M. C. Herwig-Carl
Keyword(s):  
Clinical Diagnosis ◽  
Sebaceous Gland ◽  
Malignant Tumors ◽  
Pyogenic Granuloma ◽  
Hair Follicles ◽  
Benign Tumors ◽  
Reactive Lymphoid Hyperplasia ◽  
Histopathological Analysis ◽  
Pathological Correlation ◽  
Malignant Lesions

Abstract Purpose The lacrimal caruncle is composed of numerous structures including different glands as well as hair follicles. Accordingly, the spectrum of benign and malignant lesions is broad, and the clinical diagnosis is often challenging. Here we systematically analyzed excised caruncular tumors over the past 22 years with special emphasis on the clinico-pathological correlation to provide a guidance for clinicians. Methods Retrospective evaluation with clinico-pathologic correlation of surgically removed caruncular tumors between 1998 and 2020 at a tertiary referral center. Results Eighty-two caruncular tumors were identified in the respective period. The patients were between 11 and 85 years of age (mean, 46.8 years; median, 49 years). Nevi (n = 35), cystic lesions (n = 14), oncocytoma (n = 9), papilloma (n = 8), sebaceous gland hyperplasia (n = 8), and reactive lymphoid hyperplasia (n = 4) were observed most frequently. Besides, we are the first reporting herniated orbital fat accompanied by a pyogenic granuloma. 2.4% (n = 2) were malignant tumors (sebaceous gland carcinoma, conjunctival intraepithelial neoplasia with pyogenic granuloma). Conclusion Caruncular tumors show a broad spectrum of mostly benign tumors. They can occur in patients of any age. However, 8/9 oncocytomas and both malignant lesions were detected in patients older than 60 years. Although the clinical diagnosis was confirmed in only 68.3% by the histopathological analysis, the two malignant lesions were identified as such already clinically. Caruncular lesions with a history of growth or other signs of malignancy should be excised followed by detailed histopathological examination to allow a final diagnosis and exclude rare malignant tumors with lethal potential.

scholarly journals Immunohistochemical Analysis of Na+/K+-ATPase and Bone Morphogenetic Protein-2 Expressions in Both Parenchymal and Stromal Cells from Benign and Malignant Canine Mammary Tumors

2021 ◽  
Author(s):  
ozlem ozmen
Keyword(s):  
Stromal Cells ◽  
Malignant Tumors ◽  
Breast Tumors ◽  
Mammary Tumors ◽  
Bone Morphogenetic Protein 2 ◽  
Mammary Tissue ◽  
Benign Tumors ◽  
Ion Pump ◽  
Human Breast ◽  
Canine Mammary Tumors

Abstract Canine mammary tumors are the most common type of dog tumor, and they are similar to human breast tumors. Na+/K+-ATPase is a common plasma membrane ion pump with important physiological and pathophysiological functions. In mammary tumors, the tumor microenvironment was composed of a heterogeneous population of tumor cells and nearby endogenous stromal cells. Bone morphogenetic proteins (BMPs) regulate fetal development, tissue homeostasis and differentiation, and a variety of cellular functions. The purpose of this study is to examine the immunohistochemical expression of Na+/K+-ATPase and BMP-2 in tumoral and stromal cells from benign and malignant canine mammary tumors. In this study, ten benign and ten malignant mammary tumors from the archives of the Department of Pathology were used, with five normal breast tissues serving as controls. The results of the revealed that tumors had higher levels of Na+/K+-ATPase and BMP-2 expressions than normal mammary tissue. While both markers were expressed negatively or mildly in benign tumors, they increased significantly in malignant tumors. Both Na+/K+-ATPase and BMP-2 are expressed by tumoral and stromal cells in canine mammary tumors. When compared to compared to BMP-2, Na+/K+-ATPase expression was found to be more severe. This study found that Na+/K+-ATPase and BMP-2 can be used as markers of malignancy in canine mammary tumors and that stromal cells also play an important role in tumor progression. These findings also indicated that Na+/K+-ATPase and BMP-2 may be used for early diagnosis or as a potential target for treatment of canine and human breast tumors in the future.

APPLICATION OF 2D ULTRASOUND, ELASTOGRAPHY ARFI AND MAMMOGRAPHY FOR DIAGNOSIS OF SOLID TUMORS IN BREAST

2019 ◽  
pp. 58-65
Author(s):  
Thi Song Huong Tran ◽  
Hoang Minh Thi Nguyen
Keyword(s):  
Solid Tumors ◽  
Malignant Tumors ◽  
Breast Tumors ◽  
Ultrasound Elastography ◽  
Average Score ◽  
Benign Tumors ◽  
Cut Points ◽  
Imaging Results ◽  
2D Ultrasound ◽  
Parallel Axis

Objective: To study image characteristics and values of 2D ultrasound, elastography ARFI and Mammography in the diagnosis of solid tumors in the breast. Methods: 34 patients with breast tumors were examined for 2D ultrasound, elastography ARFI and Mammography imaging. Results of 2D ultrasound, elastography ARFI and mammography were classified according to BI-RADS ACR 2013. Comparison of image results with pathology to determine the diagnostic value of 2D ultrasound, 2D ultrasound combines with ARFI, and combine with Mammography. Results: 34 patients in which 14 benign tumors and 20 malignant tumors. On ultrasound 2D: Benign tumors have the main characteristics are oval, well - defined, parallel axis with skin, hypoechogen. Malignant tumors have the main features of spiculation, non-parallel axis with the skin, markedly hypoechoic with posterior acoustic shadowing, microcalcification, vascular proliferation and invasion. On ARFI, an average score of Ako Itoh of benign tumors and malignant tumors is 2.86 ± 0.36 and cut points between E3 and E4; SWVi, SWVb in benign tumors are smaller than malignant tumors with the cut points are: 7.13 m/s; 3.13m/s. 2D + ARFI: 100% Se, Sp 92.86%, PPV 95.24%, 100% higher than 2D ultrasound and 2D + ARFI combined mammography have the same value. Conclusion: 2D ultrasound combines with ARFI and mammography is valuable in diagnosis and differential diagnosis of breast tumors. Key words: 2D ultrasound, Elastography ARFI, Mammography

scholarly journals Non-Melanoma Facial Skin Tumors—The Correspondence between Clinical and Histological Diagnosis

2021 ◽  
Vol 11 (16) ◽  
pp. 7543
Author(s):  
Camelia Tamas ◽  
Irina Mihaela Jemnoschi Hreniuc ◽  
Angela Tecuceanu ◽  
Bogdan Mihnea Ciuntu ◽  
Clara Larisa Ibanescu ◽  
...  
Keyword(s):  
Clinical Diagnosis ◽  
Malignant Tumors ◽  
Skin Tumors ◽  
Histological Diagnosis ◽  
Benign Tumors ◽  
Facial Skin ◽  
Correlation Data ◽  
Clinical Differential Diagnosis ◽  
Histological Results

This paper consists of a retrospective study that includes a total of 186 cases with facial skin tumors diagnosed and treated between January 2015 and December 2017. Our aim was to correlate the initial clinical diagnosis with the histological results, in order to observe the success rate of our clinical experience, but also to underline that certain clinical tumor aspects can be misleading as the histological findings can result in different final diagnostics. From the total number of cases, we counted a total of 226 tumors (both benign and malignant), from which 194 had the clinical diagnosis confirmed by the anatomopathological exam and 34 had a different laboratory result from the clinical presumption: 10 benign tumors and 22 malignant tumors (eight BCC and 14 SCC, 12 of the latter being confused with ulcerovegetant BCC). Detailed correlation data were presented, as well as different situations of incongruence between the clinical and the histological diagnosis. The long-term goal of the study was to use our experience of correlating the clinical and the histological diagnosis, in order to improve the existing knowledge on the clinical differential diagnosis of both malignant and benign facial skin tumors.

Retrospective study on parotid gland tumors

ORL ro ◽  
2016 ◽  
Vol 4 (1) ◽  
pp. 22-23
Author(s):  
Ibric Cioranu ◽  
Vlad Petrescu Seceleanu ◽  
Viorel Ibric Cioranu ◽  
Andreea Smarandache ◽  
Sorin Vasilescu ◽  
...  
Keyword(s):  
Malignant Tumors ◽  
Maxillofacial Surgery ◽  
Squamous Carcinoma ◽  
Benign Tumors ◽  
Warthin Tumor ◽  
Parotid Tumors ◽  
Non Hodgkin Lymphoma ◽  
Adenoid Cystic ◽  
Modal Treatment ◽  
Surgery Department

During 2011-2012, 56 patients diagnosed with parotid tumors were admitted to the Maxillofacial Surgery Department of “Lucian Blaga” University and in Euroclinic Hospital. 72% were benign tumors and 28% malignant. All patients received surgical treatment (total or partial parotidectomy). For the malignant tumors, radiotherapy was added to the modal treatment (94% of the cases). Pleomorphic adenoma was encountered in 70% of the benign cases, followed by Warthin tumor in 15%. Adenoid cystic carcinoma was noticed in 31% of the malignant cases, mucoepidermoid carcinoma in 25% of the cases, and squamous carcinoma and non-Hodgkin lymphoma on 12.5% of the malignant cases.  

HISTOLOGICAL DIAGNOSTICS OF MAMMARY GLAND NEOPLASMS IN CATS

2020 ◽  
Keyword(s):  
Mammary Gland ◽  
Malignant Tumors ◽  
Breast Tumors ◽  
Domestic Animals ◽  
Breast Diseases ◽  
Microscopic Studies ◽  
Malignant Breast ◽  
Poorly Differentiated ◽  
Breast Adenocarcinomas

Mammary gland neoplasms in cats are at the top of the list of the most common nosological diseases among domestic animals; more than half of the tumors appear as malignant. Veterinary practitioners have many questions about the prevalence of breast tumors in cats, depending on age, breed and seasons of the year. The article presents the results of diseases prevalence of benign and malignant breast tumors in cats kept in the conditions of Bishkek. The characteristic of macroscopic and microscopic studies of benign and malignant breast tumors in cats at different periods of life and depending on the breed is also described. Studies were conducted in the period from March 2018 to March 2019. Morphological methods were used in the study of breast tumors. As a result of our research, we established the morphological forms of benign and malignant breast tumors in cats. Among benign neoplastic breast diseases in cats, breast lipoma was observed. Also among the malignant tumors of the breast met highly differentiated, moderately differentiated and poorly differentiated breast adenocarcinomas malnutrition and necrosis as well as the rare phylloid (leaf-shaped) fibroadenoma of the mammary gland which makes up only 0.3-0.5 % of all breast tumors.

scholarly journals Multimodality imaging review of focal renal lesions

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Jonathan Lyske ◽  
Rishi Philip Mathew ◽  
Christopher Hutchinson ◽  
Vimal Patel ◽  
Gavin Low
Keyword(s):  
Malignant Tumors ◽  
Multimodality Imaging ◽  
Lymphoproliferative Disease ◽  
Benign Tumors ◽  
Main Body ◽  
Imaging Features ◽  
Focal Lesions ◽  
Renal Lesions ◽  
Positron Emission ◽  
Neoplastic Lesions

Abstract Background Focal lesions of the kidney comprise a spectrum of entities that can be broadly classified as malignant tumors, benign tumors, and non-neoplastic lesions. Malignant tumors include renal cell carcinoma subtypes, urothelial carcinoma, lymphoma, post-transplant lymphoproliferative disease, metastases to the kidney, and rare malignant lesions. Benign tumors include angiomyolipoma (fat-rich and fat-poor) and oncocytoma. Non-neoplastic lesions include infective, inflammatory, and vascular entities. Anatomical variants can also mimic focal masses. Main body of the abstract A range of imaging modalities are available to facilitate characterization; ultrasound (US), contrast-enhanced ultrasound (CEUS), computed tomography (CT), magnetic resonance (MR) imaging, and positron emission tomography (PET), each with their own strengths and limitations. Renal lesions are being detected with increasing frequency due to escalating imaging volumes. Accurate diagnosis is central to guiding clinical management and determining prognosis. Certain lesions require intervention, whereas others may be managed conservatively or deemed clinically insignificant. Challenging cases often benefit from a multimodality imaging approach combining the morphology, enhancement and metabolic features. Short conclusion Knowledge of the relevant clinical details and key imaging features is crucial for accurate characterization and differentiation of renal lesions.

scholarly journals PTEN Hamartoma Tumor Syndrome/Cowden Syndrome: Genomics, Oncogenesis, and Imaging Review for Associated Lesions and Malignancy

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3120
Author(s):  
David D. Dragoo ◽  
Ahmed Taher ◽  
Vincenzo K. Wong ◽  
Ahmed Elsaiey ◽  
Nikita Consul ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Malignant Tumors ◽  
Cowden Syndrome ◽  
Benign Tumors ◽  
Imaging Findings ◽  
Pten Hamartoma Tumor Syndrome ◽  
Associated Lesions ◽  
Tumor Recognition ◽  
Integral Role ◽  
Early Tumor

PTEN hamartoma tumor syndrome/Cowden syndrome (CS) is a rare autosomal dominant syndrome containing a germline PTEN mutation that leads to the development of multisystem hamartomas and oncogenesis. Benign tumors such as Lhermitte–Duclos disease and malignant tumors involving the breast, thyroid, kidneys, and uterus are seen in CS. Radiologists have an integral role in the comanagement of CS patients. We present the associated imaging findings and imaging screening recommendations. Knowledge of the types of cancers commonly seen in CS and their imaging findings can aid in early tumor recognition during cancer screening to help ensure near-normal life spans in CS patients.

scholarly journals Role of CA 19-9 in complex ovarian tumors

2016 ◽  
Author(s):  
Dhanya S. Thomas ◽  
Ajit Sebastian ◽  
Vinotha Thomas ◽  
Anitha Thomas ◽  
Rachel Chandy ◽  
...  
Keyword(s):  
Malignant Tumors ◽  
Ovarian Tumors ◽  
Benign Tumors ◽  
Ovarian Mass ◽  
Radiological Findings ◽  
Epithelial Tumors ◽  
Mucin Glycoprotein ◽  
Glycoprotein Antigen ◽  
Mucinous Tumours

Background: Cancer antigen 19-9 (CA 19-9) is a tumor-associated mucin glycoprotein antigen that may be elevated in healthy individuals as well as in patients with benign and malignant tumors. It is useful in the management of pancreatic and other gastrointestinal tumors. CA 19-9 is also elevated in benign and malignant ovarian tumors. Aim: To study the pattern of serum CA19-9 in complex ovarian tumors. Methods: The study design was descriptive, based on data collected from medical records. Patients with a complex ovarian mass, who were investigated with CA 19-9 and had undergone surgery, wereincluded in the study. The study duration was 2 years from January 2014 to December 2015. A total of 273 patients (119 - benign and 154 malignant) with complex ovarian mass and elevated CA 19-9 underwent surgery during the study period. Results: CA 19-9 was elevated in 55 patients (20%). Of these, 23 patients had benign tumors while 32 had malignant tumors.Among patients with benign tumors, 21 had dermoid, 23 had mucinous tumors and 75 had other types of tumors. CA 19-9 was elevated in 10 (47.6%) of the dermoids, 7 (30.4%) of the mucinous tumors and 6 (8%) of the other benign tumors. Among patients with malignant tumors, 138 were epithelial and 16 were non epithelial tumors. Of the epithelial tumors, 31 were mucinous and 107 were non mucinous types. Overall, 29 (21%) had elevated CA 19-9. Of the epithelial tumors, 22.6% of the mucinous type and 20.6% of the non mucinous type had elevated CA 19-9. Among the non-epithelial tumors, 3 (18.8%) had elevated CA19-9. Conclusion: CA 19-9 is elevated in several conditions but most likely to be raised in dermoid cysts and mucinous tumours. CA19-9 levels need to be interpreted along with clinical and radiological findings.

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