scholarly journals Assess the Role of Sonography and MRI in Diagnosing Ovarian Masses

2020 ◽  
Vol 8 (2) ◽  
pp. 41-49
Author(s):  
G. Mahender Reddy ◽  
M. L. Ravindernath ◽  
S.Snehaja Reddy
Keyword(s):  
Histopathological Examination ◽  
Imaging Techniques ◽  
Benign Lesion ◽  
Wall Structure ◽  
Diagnostic Modality ◽  
Color Flow ◽  
Palpable Mass ◽  
Imaging Characteristics ◽  
Ovarian Masses

Background: In order to conduct appropriate surgical treatments, the characterization of ovarian lesions is of considerable significance and can affect patient care. A multidisciplinary approach based on physical assessment, laboratory tests and imaging techniques includes adequate measurement of the adnexal masses. The aim is to assess the role of Sonography and MR in diagnosing ovarian masses, to study imaging characteristics of ovarian masses on USG and Doppler in correlating these findings with MR features. Subjects and Methods: The present study was carried out in the department of radiodiagnosis to determine the efficacy of sonography and MRI in the diagnosis of ovarian masses. The study group comprised 50 patients with clinically suspected ovarian masses and imaging was carried out on all patients with ovarian masses and imaging was carried out on all patients with ovarian masses. All the masses were evaluated on sonography based on the Sassone scoring system. Morphological analysis was performed for each mass based on wall thickness, inner wall structure, septal structure and echogenicity of mass. The color flow was carried out, subsequently; MRI was carried out for each patient. Radiological diagnosis was confirmed after surgery on histopathological examination. Results: The majority of the patients were in the age group of 31-40 years. The most common symptoms noted were pain in the abdomen. The most common clinical finding was a palpable mass. The application of Sassone sonomorphologic score >9 was identified in 8 masses, out of which 7 were malignant and 1 was a benign lesion. The colour flow was detected in 38 out of 50 masses. The presence of flow, type of flow, vessel arrangement, morphology and location were noted and on pulsed Doppler the RI and PI values were calculated. Out of 8 malignant cases, 5 were diagnosed as malignant according to the Caruso score. The overall sensitivity 100 %, specificity is 97.6% and diagnostic accuracy is 98% of MRI which is higher than that of ultrasound and CDS. Conclusion: We conclude that MRI is a superior diagnostic modality in establishing the diagnosis of ovarian masses.

scholarly journals TO EVALUATE THE ROLE OF RADIOLOGICALAND HISTOPATHOLOGICAL EXAMINATION IN THE DIAGNOSIS OF INTERSTITIAL LUNG DISEASES

2019 ◽  
pp. 1-2
Author(s):  
Ankit Pandey
Keyword(s):  
Lung Biopsy ◽  
Multidisciplinary Approach ◽  
Histopathological Examination ◽  
Correct Diagnosis ◽  
Interstitial Lung Diseases ◽  
Diagnostic Modality ◽  
Pathologic Features ◽  
Common Diagnosis ◽  
Conclusive Diagnosis

Background : Interstitial Lung Disease encompasses a very large and complex group of more than 200 parenchymal pulmonary disorders of which the majority are rare. They are bunched together because they share clinical , radiographic, physiologic and pathologic features..A Multidisciplinary approach including clinical, radiological and histopathological examination is usually needed to make a correct diagnosis Patients and Methods : 60 patients with clinical and radiological features of ILD who underwent Transbronchial Lung Biopsy were included in the study. Diagnosis was made on basis of Multidisciplinary approach including clinical, radiological and histopathogical examination Results : Among the patients studied Lung Biopsy was able to confirm the diagnosis of ILD in 95% of the cases . Idiopathic Pulmonary Fibrosis was the most common diagnosis in 23(38.3%) of the cases . HRCTalone was found to be inadequate in coming to a conclusive diagnosis Conclusion : Despite the widespread use of HRCT, Lung Biopsy remains a superior diagnostic modality in diagnosis of ILD and should be used in patients wherever possible

scholarly journals Female paraurethral leiomyoma: a case report

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Farhat Mazhari ◽  
Roopam Singh ◽  
Kirti Anima Kerketta ◽  
Nilay Pathak ◽  
Neha Singh
Keyword(s):  
Histopathological Examination ◽  
Imaging Techniques ◽  
Surgical Excision ◽  
Reproductive Age ◽  
Mri Imaging ◽  
Diagnostic Dilemma ◽  
Palpable Mass ◽  
Dependent Growth ◽  
Paraurethral Leiomyoma ◽  
Reproductive Age Group

Abstract Background Leiomyoma is a benign fibromuscular neoplasm originating from smooth muscle cells. Paraurethral leiomyoma is an extremely rare, benign, hormone-dependent growth from the mesenchymal cells in paraurethral space of female urethra. They usually appear in the reproductive age group women, mean age of presentation being approximately 41 years. Case presentation A 48-year-old woman presented with palpable mass at vagina and weak urinary stream. She underwent clinical examination and CT scan and MRI imaging followed by transvaginal excision of the mass. Histopathological examination confirmed paraurethral leiomyoma. Conclusions Paraurethral leiomyoma owing to its rare incidence poses a diagnostic dilemma for the gynecologists. Radiological imaging techniques help in diagnosis. Surgical excision via vaginal route is the treatment of choice. Diagnosis is confirmed by histopathology.

scholarly journals Malignant Transformation of an HNF1a-Inactivated Hepatocellular Adenoma to Hepatocellular Carcinoma

2020 ◽  
Vol 14 (3) ◽  
pp. 577-585
Author(s):  
Joris T. Hepkema ◽  
Floris B. Poelmann ◽  
Annette S.H. Gouw ◽  
Robbert J. de Haas ◽  
Evelien W. Duiker ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Malignant Transformation ◽  
Histopathological Examination ◽  
Imaging Techniques ◽  
Hepatocellular Adenoma ◽  
Benign Tumors ◽  
Palpable Mass ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Upper Abdomen

Hepatocellular adenomas (HCA) are rare benign tumors of the liver, occurring predominantly in females using oral contraceptives. Our case describes a 66-year-old woman presenting with a palpable mass in her upper abdomen. Contrast-enhanced computed tomography and magnetic resonance imaging showed a large exophytic mass protruding from the caudal border of liver segments IV and V, without visible metastases. Laparoscopic resection of the tumor and gallbladder was performed. Histopathological examination showed a hepatocellular carcinoma with areas of HNF1a-HCA (H-HCA). This case shows that malignant transformation is possible in H-HCA. We present our preoperative decision-making process, as well as the role of imaging techniques in this rare case.

scholarly journals The role of proton magnetic resonance spectroscopy in the diagnosis and categorization of cerebral abscesses

2008 ◽  
Vol 24 (6) ◽  
pp. E7 ◽  
Author(s):  
Eftychia Z. Kapsalaki ◽  
Efstathios D. Gotsis ◽  
Kostas N. Fountas
Keyword(s):  
Magnetic Resonance ◽  
Mr Spectroscopy ◽  
Proton Magnetic Resonance ◽  
Malignant Tumors ◽  
Imaging Techniques ◽  
Spectral Characteristics ◽  
Resonance Spectroscopy ◽  
Normal Brain ◽  
Diagnostic Modality

✓ Despite recent advances in neuroimaging, differentiation between cerebral abscesses and necrotic tumors with ring-type contrast enhancement can be puzzling at times. The introduction of advanced imaging techniques, such as diffusion-weighted imaging, has contributed to the identification of cerebral abscesses. However, differentiation may be impossible with imaging only. In this review the authors evaluate the role of proton magnetic resonance (MR) spectroscopy in differentiating between cerebral abscesses and necrotic tumors and address the spectral characteristics of intracranial abscesses. A large number of metabolites not detected in the normal brain spectra may be detected and give valuable information regarding the nature of the abscesses. Proton MR spectroscopy is a safe, noninvasive diagnostic modality, which could significantly increase the accuracy and specificity of conventional MR imaging in differentiating between malignant tumors and cerebral abscesses and provide valuable information regarding the cause of an abscess, as well as, its response to the chosen treatment.

Role of Diffusion and Perfusion-Weighted MR Imaging in Differentiating Meningioma from Solitary Dural Metastasis

2005 ◽  
Vol 18 (2) ◽  
pp. 160-168 ◽  
Author(s):  
N. Yildirim ◽  
B. Hakyemez ◽  
C. Erdoğan ◽  
M. Parlak
Keyword(s):  
Cerebral Blood Volume ◽  
Imaging Techniques ◽  
Qualitative Assessment ◽  
Diffusion Weighted Mri ◽  
Conventional Mri ◽  
Diffusion Weighted ◽  
Imaging Characteristics ◽  
Adc Values ◽  
Dural Metastasis

In some instances conventional imaging techniques fail to differentiate meningiomas from isolated dural metastasis. This study aimed to evaluate the role of diffusion and perfusion-weighted MRI in differentiating meningiomas and dural metastasis. In this study, 14 metastasis and 26 meningiomas were involved. The imaging characteristics were analyzed using conventional MRI. Diffusion-weighted MRI was performed and ADC values were calculated from the solid components and the peritumoral edema. Perfusion-weighted MRI was performed and relative cerebral blood volume (rCBV) was calculated. Student's t test was used for the statistical analysis. Dural metastasis and meningiomas could not be differentiated by qualitative assessment of conventional and diffusion-weighted MRI. The mean intratumoral and peritumoral ADC values were not statistically significant (p > 0.05). The rCBV ratios for dural metastasis and meningiomas were 4.13 ± 2.32 and 7.32 ± 4.10 respectively and the difference between two was statistically significant (p = 0.003). Peritumoral rCBV ratios for dural metastasis and meningiomas were not statistically significant (p > 0.05). Conventional MRI findings of dural metastasis and meningiomas may overlap in some lesions. In differentiation of these lesions diffusion-weighted MRI yields no further information additional to conventional sequences. Perfusion-weighted MRI can be useful to distinguish these lesions by demonstrating high intratumoral rCBV ratios for meningiomas and low rCBV ratios for metastasis.

Semi-Quantitative Ultrasonographic Evaluation of NAFLD

2020 ◽  
Vol 26 (32) ◽  
pp. 3915-3927 ◽  
Author(s):  
Stefano Ballestri ◽  
Claudio Tana ◽  
Maria Di Girolamo ◽  
Maria Cristina Fontana ◽  
Mariano Capitelli ◽  
...  
Keyword(s):  
Liver Disease ◽  
Fatty Liver ◽  
Imaging Techniques ◽  
Metabolic Complications ◽  
Nonalcoholic Fatty Liver ◽  
Non Invasive ◽  
Increased Risk ◽  
Risk Of Progression ◽  
Progressive Liver Disease

: Nonalcoholic fatty liver disease (NAFLD) embraces histopathological entities ranging from the relatively benign simple steatosis to the progressive form nonalcoholic steatohepatitis (NASH), which is associated with fibrosis and an increased risk of progression to cirrhosis and hepatocellular carcinoma. NAFLD is the most common liver disease and is associated with extrahepatic comorbidities including a major cardiovascular disease burden. : The non-invasive diagnosis of NAFLD and the identification of subjects at risk of progressive liver disease and cardio-metabolic complications are key in implementing personalized treatment schedules and follow-up strategies. : In this review, we highlight the potential role of ultrasound semiquantitative scores for detecting and assessing steatosis severity, progression of NAFLD, and cardio-metabolic risk. : Ultrasonographic scores of fatty liver severity act as sensors of cardio-metabolic health and may assist in selecting patients to submit to second-line non-invasive imaging techniques and/or liver biopsy.

Microglia in Alzheimer’s Disease

2020 ◽  
Vol 17 (1) ◽  
pp. 29-43 ◽  
Author(s):  
Patrick Süß ◽  
Johannes C.M. Schlachetzki
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Neurodegenerative Disorder ◽  
Current Knowledge ◽  
Imaging Techniques ◽  
Amyloid Β ◽  
Disease Stage ◽  
Disease Modifying Therapy ◽  
Transcriptomic Signature

: Alzheimer’s Disease (AD) is the most frequent neurodegenerative disorder. Although proteinaceous aggregates of extracellular Amyloid-β (Aβ) and intracellular hyperphosphorylated microtubule- associated tau have long been identified as characteristic neuropathological hallmarks of AD, a disease- modifying therapy against these targets has not been successful. An emerging concept is that microglia, the innate immune cells of the brain, are major players in AD pathogenesis. Microglia are longlived tissue-resident professional phagocytes that survey and rapidly respond to changes in their microenvironment. Subpopulations of microglia cluster around Aβ plaques and adopt a transcriptomic signature specifically linked to neurodegeneration. A plethora of molecules and pathways associated with microglia function and dysfunction has been identified as important players in mediating neurodegeneration. However, whether microglia exert either beneficial or detrimental effects in AD pathology may depend on the disease stage. : In this review, we summarize the current knowledge about the stage-dependent role of microglia in AD, including recent insights from genetic and gene expression profiling studies as well as novel imaging techniques focusing on microglia in human AD pathology and AD mouse models.

Imaging of Pancreatic-Neuroendocrine Tumours: An Outline of Conventional Radiological Techniques

2019 ◽  
Vol 12 (2) ◽  
pp. 135-155 ◽  
Author(s):  
Muhammad Affan Zamir ◽  
Wasim Hakim ◽  
Siraj Yusuf ◽  
Robert Thomas
Keyword(s):  
Neuroendocrine Tumours ◽  
Treatment Options ◽  
Advantages And Disadvantages ◽  
Imaging Characteristics ◽  
Fundamental Understanding ◽  
Pancreatic Neuroendocrine Tumours ◽  
Direct Management ◽  
Important Disease ◽  
Similar Imaging

IIntroduction: Pancreatic Neuroendocrine Tumours (p-NETs) are an important disease entity and comprise of peptide-secreting tumours often with a functional syndrome. : Accounting for a small percentage of all pancreatic tumours, they have a good overall survival rate when diagnosed early, with surgery being curative. The role of nuclear medicine in the diagnosis and treatment of these tumours is evident. However, the vast majority of patients will require extensive imaging in the form of conventional radiological techniques. It is important for clinicians to have a fundamental understanding of the p-NET appearances to aid prompt identification and to help direct management through neoplastic staging. Methods: This article will review the advantages and disadvantages of conventional radiological techniques in the context of p-NETs and highlight features that these tumours exhibit. Conclusion: Pancreatic neuroendocrine tumours are a unique collection of neoplasms that have markedly disparate clinical features but similar imaging characteristics. Most p-NETs are small and welldefined with homogenous enhancement following contrast administration, although larger and less welldifferentiated tumours can demonstrate areas of necrosis and cystic architecture with heterogeneous enhancement characteristics. : Prognosis is generally favourable for these tumours with various treatment options available. However, conventional radiological techniques will remain the foundation for the initial diagnosis and staging of these tumours, and a grasp of these modalities is extremely important for physicians.

Arterite de Takayasu em Gestante: Relato de Caso / Takayasu Arteritis in Pregnancy: Case Report

1970 ◽  
Vol 5 (4) ◽  
pp. 61-66
Author(s):  
Patrícia Resende Penido ◽  
Rhanna Junqueira Westin de Carvalho ◽  
Roger Willian Moraes Mendes
Keyword(s):  
Case Report ◽  
Takayasu Arteritis ◽  
Imaging Techniques ◽  
Unknown Origin ◽  
Pregnant Patient ◽  
Immunosuppressive Drugs ◽  
Clinical Treatment ◽  
Satisfactory Outcome

RESUMOIntrodução: A Arterite de Takayasu (AT) consiste em uma vasculopatia de origem indefinida, sendo de caráter crônico, que afeta a aorta e seus ramos principais. Em gestantes é uma condição complexa, em que o tratamento clínico é realizado com restrições. A utilização de corticoides tem sido favorável no controle inflamatório, principalmente naqueles casos em que antes da gravidez se fazia uso de imunossupressores. Casuística: Foi relatado um caso de uma gestante portadora de AT, através da análise de prontuário e de exames complementares, sendo realizado o pré-natal pelas equipes de Obstetrícia e Reumatologia, onde foi realizado tratamento clínico com corticoides, mostrando uma evolução satisfatória, ocorrendo apenas uma hospitalização que foi seguida de uma cesárea na trigésima sexta semana de gravidez, com recém nato saudável de 3.810g. Discussão: A AT pode estar associada a várias etiologias, sendo a gênese pouco conhecida. O diagnóstico na maioria das vezes é demorado, pela dificuldade da suspeita clínica, além de demandar o uso de técnicas de imagem mais sofisticadas. A gestação associada é fenômeno raro, já que as portadoras são orientadas a evitarem a gravidez. O controle clínico permitiu uma gestação sem grandes complicações e serviu como meio para levar a gestação até praticamente o fim do terceiro trimestre. Conclusão: Deve-se ressaltar o papel do acompanhamento clínico, especialmente com esta pan-arterite, mostrando os medicamentos que podem ser utilizados nesse grupo, especialmente quando se usava imunossupressores antes da gravidez. Palavras chave: Arterite de Takayasu, Gravidez, Vasculite. ABSTRACT:Introduction: Takayasu's arteritis (TA) consists of a vascular disease of unknown origin and chronic nature, which affects the aorta and its main branches. In pregnant women it is a complex condition, in which the clinical treatment is performed with restrictions. The use of corticosteroids has been favorable to control inflammation, especially in those cases when immunosuppressant had been used before pregnancy. Case Report: A case of a pregnant patient with TA has been reported through the analysis of medical records and laboratory tests. The Obstetrics and Rheumatology staff performed the prenatal care, and clinical treatment with corticosteroids was done showing a satisfactory outcome. There was only one hospitalization of the patient, which was followed by a cesarean in the thirty sixth week of pregnancy.  The newborn was a healthy one, weighing 3.810g. Discussion: TA may be associated with several etiologies, and the genesis is little known. The diagnosis most often takes time due to the difficulty of clinical suspicion, and requires the use of more sophisticated imaging techniques. The pregnancy is rare phenomenon, since the carriers are advised to avoid pregnancy. The clinical management allowed a pregnancy without major complications and served as a means to carry the pregnancy to almost the end of the third quarter. Conclusion: The role of the clinical follow-up should be noticed especially with this pan-arteritis, showing the drugs that can be used in this group, especially when there is use of immunosuppressive drugs before pregnancy. Keywords: Takayasu Arteritis, Pregnancy, Vasculitis.

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