scholarly journals Lymphomatosis cerebri: Multimodality imaging features and misdiagnosis analysis

2021 ◽  
Vol 22 (4) ◽  
Author(s):  
Zhibing Ruan ◽  
Lan Chu ◽  
Chunfeng Liu ◽  
Yu Hu ◽  
Jinjin Huang
Author(s):  
Hale Aydin ◽  
Bahar Guner ◽  
Isil Esen Bostanci ◽  
Nazan Ciledag ◽  
Melda Boyacioglu Bulut ◽  
...  

Background and Objectives: The purpose of this study was to evaluate the mammographic, sonographic and MRI findings of metaplastic breast carcinoma. Methods: In this retrospective review study, we analyzed the medical files of 9600 patients who were treated for invasive breast cancers. Clinical information, histopathologic and radiologic findings of 65 patients were included in this study. All existing radiologic images and medical reports were reviewed retrospectively. Thirty-three patients had MG, 58 patients had US and 7 patients had MRI imaging results. Results: Mammographically, the most frequent presentations of MPBC were round shape, microlobulated margin and high density masses. Calcifications with or without masses were not a frequent finding. The most common sonographic findings were round shape, partially indistinct angular margin, hypoechoic and heterogeneous echo patterns and no posterior feature masses. All lesions were presented as masses rather than non-mass enhancements on magnetic resonance imaging. Features of masses had more malignant feature on MRI than other modalities in all 7 patients. Conclusion: Metaplastic breast carcinoma is one of the rarest poorly differentiated invasive breast carcinomas. Interestingly, these aggressive tumors demonstrate benign or moderately malign features on imaging methods. This appearance of MPBC can cause it to be misdiagnosed as a benign breast lesion especially in young women. MPBC should be kept in mind in the differential diagnosis of large palpable breast masses. Therefore, follow-up at short intervals and/or multimodality imaging studies which include breast MRI are important for the diagnosis of MPBC.


Author(s):  
Jonathan Lyske ◽  
Rishi Philip Mathew ◽  
Christopher Hutchinson ◽  
Vimal Patel ◽  
Gavin Low

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.


Author(s):  
Alan Alexander ◽  
Kyle Hunter ◽  
Michael Rubin ◽  
Ambarish P. Bhat

AbstractExtraosseous Ewing’s sarcoma (EES), first described in 1969, is a malignant mesenchymal tumor just like its intraosseous counterpart. Although Ewing’s sarcomas are common bone tumors in young children, EESs are rarer and more commonly found in older children/adults, often carrying a poorer prognosis. We discuss the multimodality imaging features of EES and the differential diagnosis of an aggressive appearing mass in proximity to skeletal structures, with pathologic correlates. This review highlights the need to recognize the variability of radiologic findings in EES such as the presence of hemorrhage, rich vascularity, and cystic or necrotic regions and its imaging similarity to other neoplasms that are closely related pathologically.


2021 ◽  
Vol 10 (1) ◽  
pp. 11-12
Author(s):  
Funda Dinç Elibol ◽  
Cenk Elibol ◽  
Ferda Bacaksizlar Sari ◽  
Okay Nazli

2020 ◽  
Vol 26 (6) ◽  
pp. 531-540
Author(s):  
Roberto Cannella ◽  
◽  
Adele Taibbi ◽  
Giorgia Porrello ◽  
Marco Dioguardi Burgio ◽  
...  

2020 ◽  
pp. 20201019
Author(s):  
Mark Wickre ◽  
Elizabeth Valencia ◽  
Malvika Solanki ◽  
Katrina Glazebrook

Objective: The purpose of this study was to describe the imaging appearance, diagnosis, and management of mammary and extramammary myofibroblastoma (MFB) in a series of 23 patients. Methods and materials: Following institutional review board approval, cases were identified by searching for “myofibroblastoma” in radiology reports. Multimodality imaging and pathological features were assessed. Results: 23 cases of myofibroblastoma were identified in 15 males and 8 females. Most cases were in the breast (20/23, 87%), presenting as a palpable mass or discovered incidentally on mammography in females or chest CT in males. Extramammary MFB lesions (3/23, 13%) presented with symptoms related to mass effect. At imaging, MFB most often demonstrated an oval or irregular mass that was hypoechoic or heterogeneously echogenic with variable margins. MRI showed T2 hyperintensity, diffusion restriction, and plateau kinetics. Extramammary MFB appeared as an enhancing mass with variable fat content and T2 intensity. Conclusion: Here we describe imaging and clinicopathological features of mammary and extramammary myofibroblastoma. Advances in knowledge: Imaging description of this rare tumor is limited in the literature, and to date this is the largest case series describing the imaging findings.


2019 ◽  
Vol 92 (1103) ◽  
pp. 20190517
Author(s):  
Almir GV Bitencourt ◽  
Eduardo VL Ferreira ◽  
David C Bastos ◽  
Vitor A Sperandio ◽  
Luciana Graziano ◽  
...  

Intramammary lymph nodes (IMLN) are one of the most common benign findings at screening mammography. However, abnormal IMLN features, such as diminished or absent hilum, thickened cortex, not circumscribed margins, increased size or interval change, warrants additional follow-up or pathologic analysis to exclude malignancy. Some benign inflammatory conditions may be associated with imaging-detected suspected abnormal IMLN, such as reactive hyperplasia and silicone-induced lymphadenopathy. In patients with known breast cancer, IMLN are a potential site of locoregional spread, which can change the prognosis and management. In some cases, initial breast carcinomas can also mimic IMLN. Breast radiologists must also be aware of the typical and atypical characteristics of IMLN to suggest further investigation when it is necessary.


2020 ◽  
Vol 45 (10) ◽  
pp. 800-801
Author(s):  
Sebastien Dejust ◽  
Pascaline Jallerat ◽  
Pauline Soibinet-Oudot ◽  
Christelle Jouannaud ◽  
David Morland

Author(s):  
Alessia Azzu ◽  
Alexios S Antonopoulos ◽  
Batool Almogheer ◽  
Raad H Mohiaddin

Abstract Background This is a case report of a primary cardiac lymphoma with an unusual clinical presentation. We hereby illustrate the characteristic features of cardiac lymphomas by multimodality imaging and particularly cardiac magnetic resonance (CMR) that can help reach a timely diagnosis non-invasively and guide treatment decisions. Case summary A 58-year-old woman, without significant past medical history, presented with a 3-week history of shortness of breath associated with facial and neck swelling. Transthoracic echocardiogram confirmed the presence of a cardiac mass in the right atrium. Cardiac magnetic resonance helped to characterize the mass, assess its haemodynamic significance and relation to cardiac structures, and reach a non-invasive diagnosis that was crucial for guiding treatment decisions and interventions. Discussion Cardiac masses have distinct imaging features that can help differentiate malignant from benign cardiac tumours. More specifically, primary cardiac lymphomas can be relatively easy diagnosed by CMR in most cases thanks to their characteristic imaging appearance.


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