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المؤلفون: Carlos Shimizu, Nestor de Barros, Luciano Fernandes Chala, Giselle Guedes Netto de Mello, Marcela Pacheco Viana, Tatiana Cardoso de Mello Tucunduva, Vera Lucia Nunes Aguillar, Bárbara Helou Bresciani, Ulysses dos Santos Torres
المصدر: Clinical Imaging. 68:45-56
مصطلحات موضوعية: Male, medicine.medical_specialty, Male breast, Breast Neoplasms, 030218 nuclear medicine & medical imaging, Diagnosis, Differential, Breast Diseases, 03 medical and health sciences, Broad spectrum, 0302 clinical medicine, Humans, Medicine, Mammography, Radiology, Nuclear Medicine and imaging, Breast, Imaging interpretation, medicine.diagnostic_test, business.industry, Key features, 030220 oncology & carcinogenesis, Male breast disease, Female, Ultrasonography, Mammary, Radiology, Differential diagnosis, business
الوصف: The male breast is affected by a broad spectrum of conditions, ranging from benign to malignant, many of which are similar to those occurring in its female counterpart. Despite the challenge motivated by different imaging characteristic features, correct imaging interpretation in male breast disease may aid at differentiation between benign and suspected conditions, narrow the differential diagnosis and guide subsequent management. The purpose of this review is to showcase a wide array of male breast diseases, discuss their imaging presentations and key features for diagnosis.
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المؤلفون: Iva Petkovska, Gregory T. Chesnut, Chen Ying-Bei, Pamela Ines Causa Andrieu, Jennifer S. Golia Pernicka, Jaspreet S. Shandu, Gabriela Faria e Silva Costa
المصدر: Clin Imaging
مصطلحات موضوعية: Male, medicine.medical_specialty, Malignancy, Article, Metastasis, Diagnosis, Differential, Urethra, Lower urinary tract symptoms, medicine, Humans, Radiology, Nuclear Medicine and imaging, Urethral Neoplasms, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, Middle Aged, medicine.disease, Adenocarcinoma, Mucinous, Magnetic Resonance Imaging, Primary tumor, medicine.anatomical_structure, Appendiceal Neoplasms, Thigh, Adenocarcinoma, Female, Radiology, Differential diagnosis, business
الوصف: We are presenting a compelling case of a 61-year-old female with a history of appendiceal mucinous adenocarcinoma (AMA) with a new complaint of irritative lower urinary tract symptoms. Magnetic resonance imaging (MRI) showed a semi-circumferential, T2 hyperintense, rim enhancing, and lacking restricted diffusion lesion involving the urethra and infiltrating the right perineal and internal obturator muscles. The suspected differential diagnosis was urethral malignancy, based on her cancer history and MRI findings. After interdisciplinary consensus, the patient underwent excision of the lesion, and pathology was consistent with metastasis from the primary tumor. The urethra is a rare site of primary malignancy and metastatic disease. In particular, a non-contiguous metastatic disease involving the urethra is exceedingly rare. To the best of our knowledge, this is the first report of an AMA metastasizing to the urethra.
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المؤلفون: Kemi Babagbemi, Eralda Mema, Bennett Battle, Patrick J. McIntire
المصدر: Clinical Imaging. 71:49-51
مصطلحات موضوعية: medicine.medical_specialty, medicine.diagnostic_test, business.industry, Sinus Histiocytosis with Massive Lymphadenopathy, Breast Neoplasms, Histiocytes, Disease, Middle Aged, medicine.disease, Diagnosis, Differential, Direct Treatment, Humans, Medicine, Mammography, Female, Radiology, Nuclear Medicine and imaging, Breast, Radiology, Multiple modalities, Histiocytosis, Sinus, business, Histiocyte, Rosai–Dorfman disease, Rare disease
الوصف: We report a case of a 49-year-old female diagnosed with extranodal multifocal Rosai-Dorfman disease (RDD) of the breast using mammography and ultrasound. RDD is a rare non-Langerhans cell benign proliferative disorder of histiocytes that usually involves the lymph nodes, but may involve extranodal sites. We review the clinical presentation as well as imaging features of this rare disease on multiple modalities and the importance of recognizing the diagnosis in order to direct treatment.
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المؤلفون: Barak Friedman, Andy H. Choy, Joan M. Chi, Gregory M. Grimaldi, John N. Mullins, Micheal H. Raj
المصدر: Clinical Imaging. 59:88-94
مصطلحات موضوعية: Adult, medicine.medical_specialty, Abdominal pain, Population, Diagnostic dilemma, Pelvis, Diagnosis, Differential, Young Adult, Pregnancy, Prenatal Diagnosis, Abdomen, medicine, Humans, Radiology, Nuclear Medicine and imaging, education, Ultrasonography, education.field_of_study, medicine.diagnostic_test, business.industry, Ultrasound, CT Abdomen, Magnetic resonance imaging, medicine.disease, Magnetic Resonance Imaging, Abdominal Pain, Pregnancy Complications, medicine.anatomical_structure, Female, Radiology, medicine.symptom, Tomography, X-Ray Computed, business, Algorithms
الوصف: Pregnant women with abdominal pain can pose a diagnostic dilemma due to the nonspecific nature of symptoms and the desire to avoid radiation to the conceptus. Many algorithms will suggest ultrasound (US) or Magnetic Resonance Imaging (MRI) as the first-line imaging choice in pregnant women with abdominal pain due to the lack of ionizing radiation. However, these studies can have limitations as well. Abdominopelvic MRI is susceptible to respiratory motion that could cause a study to be nondiagnostic (Zaitsev et al., 2015 [1]). In the current case series, we present 8 pregnant patients with abdominal pain who underwent CT abdomen and pelvis after negative or inconclusive abdominal MRI exams. To our knowledge, this is the only case series that describes CT findings in the pregnant population after negative or inconclusive MRI.
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المؤلفون: Hyun Jeong Park, Ji Hye Min, Young Kon Kim, Dong Ik Cha, Jeong Hyun Lee, Soohyun Ahn, Jisun Lee
المصدر: Clinical Imaging. 55:132-139
مصطلحات موضوعية: Adult, Gadolinium DTPA, Male, Gadoxetic acid, medicine.medical_specialty, Pancreatic ductal adenocarcinoma, endocrine system diseases, Biopsy, Contrast Media, Sensitivity and Specificity, Diagnosis, Differential, Multidetector Computed Tomography, Radiologists, Humans, Medicine, Radiology, Nuclear Medicine and imaging, Cyst, Aged, Retrospective Studies, Pancreatic duct, medicine.diagnostic_test, business.industry, Pancreatic Ducts, Middle Aged, medicine.disease, Magnetic Resonance Imaging, Mr imaging, digestive system diseases, Pancreatic Neoplasms, Diffusion Magnetic Resonance Imaging, medicine.anatomical_structure, Pancreatitis, Adenocarcinoma, Female, Radiology, business, Carcinoma, Pancreatic Ductal, medicine.drug
الوصف: Accurate differentiation between pancreatic adenocarcinoma and focal pancreatitis is challenging.To investigate the usefulness of non-contrast MRI by comparing with multidetector row CT (MDCT) and gadoxetic acid-enhanced MRI in the discrimination of pancreatic ductal adenocarcinoma (PDAC) and focal pancreatitis (FP).This retrospective study included 187 patients (116 with PDACs and 71 with FP) who underwent gadoxetic acid-MRI and MDCT prior to surgical resection or biopsy. The MRI features of PDAC and FP were compared by two radiologists. Then, two observers independently reviewed the three imaging sets: MDCT, non-contrast MRI (T1-, T2-weighted, and diffusion-weighted images), and MRI with and without gadoxetic acid to determine the diagnostic performances of each imaging modality in the discrimination of PDAC and FP.The significant features on non-contrast MRI for diagnosis of PDAC included peritumoral cyst, pancreatic duct cut-off, clear hypointensity on T1WI, and bile duct dilatation (P 0.05). Presence of peritumoural cyst showed the highest odds ratio for predicting PDAC. Non-contrast MRI was superior to MDCT in differentiating PDAC from FP with regard to accuracy (84.5% vs 95.5% for observer 1; 85.8% vs. 96.0% for observer 2), sensitivity (83.6% vs. 98.3%; 84.5% vs 97.8%), and negative predictive value (76.3% vs. 97.0%; 77.6% vs 96.4%) (P 0.05). We found similar diagnostic values between the non-contrast MRI and MRI with and without contrast (P 0.05) for both observers.Non-contrast MRI is better than MDCT and comparable to MRI with and without gadoxetic acid in differentiating PDAC from FP.
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المؤلفون: Byung Kwan Park, Sung Goo Park
المصدر: Clinical Imaging. 55:156-160
مصطلحات موضوعية: Male, medicine.medical_specialty, Angiomyolipoma, 030218 nuclear medicine & medical imaging, Diagnosis, Differential, 03 medical and health sciences, 0302 clinical medicine, hemic and lymphatic diseases, Radiologists, Multidetector computed tomography, medicine, Humans, Radiology, Nuclear Medicine and imaging, Carcinoma, Renal Cell, neoplasms, medicine.diagnostic_test, business.industry, Frequently asked questions, Magnetic resonance imaging, Middle Aged, medicine.disease, Magnetic Resonance Imaging, Kidney Neoplasms, Clinical Practice, 030220 oncology & carcinogenesis, Female, Radiology, business, Renal angiomyolipoma
الوصف: Recently, a new classification of renal angiomyolipoma (AML) has been introduced to clinical practice. This classification categorizes AMLs into three subtypes (fat-rich, fat-poor, and fat-invisible AMLs) based on quantitative CT and MRI criteria. Radiologists who get used to previous AML classification may have questions about how to apply a new classification. The purpose of this review is to answer the questions that are frequently asked about the new AML classification.
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المؤلفون: Rakhee S. Gawande, Mehmet Gencturk, Emiro Caicedo-Granados, Zuzan Cayci, Kerem Ozturk, Kevin H. Boegel
المصدر: Clinical Imaging. 51:217-228
مصطلحات موضوعية: Male, Paranasal Sinus Neoplasm, medicine.medical_specialty, Multimodal Imaging, Malignant disease, 030218 nuclear medicine & medical imaging, Diagnosis, Differential, 03 medical and health sciences, 0302 clinical medicine, Fluorodeoxyglucose F18, Positron Emission Tomography Computed Tomography, Humans, Medicine, Radiology, Nuclear Medicine and imaging, Medical diagnosis, Head and neck, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, Multislice computed tomography, Magnetic Resonance Imaging, Otorhinolaryngologic Neoplasms, Diffusion Magnetic Resonance Imaging, Positron emission tomography, Positron-Emission Tomography, 030220 oncology & carcinogenesis, Female, Radiology, Tomography, X-Ray Computed, business, Diffusion MRI
الوصف: Introduction Sinonasal inflammatory conditions account for a major component of head and neck pathologies, whereas neoplasms involving the sinonasal region make up only 2–3% of all head and neck lesions. The symptoms of sinonasal tumors are nonspecific; imaging plays a critical role in distinguishing benign and malignant disease and may illustrate characteristic radiological features of specific sinonasal tumors. Objective Aim was to determine the utilization of multimodality imaging, specifically the metabolic information provided by 18-fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT) and diffusivity characteristics seen with diffusion weighted images (DWI) of magnetic resonance imaging (MRI), in a wide range of benign and malignant sinonasal tumors drawn from over 200 sinonasal lesions from our institution and supplemented by the literature. Conclusion In this pictorial essay, we have reviewed common imaging characteristics of frequently encountered in sinonasal tumors and divided them into benign and malignant categories to facilitate creation of focused differential diagnoses.
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المؤلفون: Luyao Zhou, Fu-shun Pan, Xiaoyan Xie, Wei Wang, Xiaoju Li, Ming Xu, Yu Hong, Lyu Mingde, Xiaoer Zhang
المصدر: Clinical Imaging. 51:311-317
مصطلحات موضوعية: Male, Hepatic Hemangioma, medicine.medical_specialty, Younger age, Enhanced ct, Combined use, Contrast Media, Sensitivity and Specificity, 030218 nuclear medicine & medical imaging, Diagnosis, Differential, Lesion, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Radiology, Nuclear Medicine and imaging, Medical diagnosis, Combined method, Ultrasonography, business.industry, Liver Neoplasms, Ultrasound, Age Factors, Infant, Newborn, Infant, Magnetic Resonance Imaging, body regions, Child, Preschool, 030220 oncology & carcinogenesis, Female, Radiology, medicine.symptom, Hemangioma, Tomography, X-Ray Computed, business
الوصف: To investigate the combined use of ultrasound together with clinical features to differentiate infantile hepatic hemangioma (IHH) from other focal liver lesions (FLLs) in children and to compare the efficacy of the combined method to that of CECT/MRI.The location, number, size and appearance of the tumors were evaluated in 45 children with IHH. Another 45 children with FLL were randomly selected as a control group. Independent factors for predicting IHH versus FLLs were evaluated. The diagnostic performance of the clinical and ultrasound features was compared with CECT/MRI.Compared with the control FLL group, the IHH group had a younger age at diagnosis (P = 0.008), lower alpha-fetoprotein (AFP) levels (P = 0.000), smaller lesion sizes (P = 0.000), and a higher tumor proportion with a resistance index (RI) of0.7. Multiple logistic regression analysis showed that age, size, RI and AFP were independent factors for predicting IHH. Receiver operating characteristic (ROC) curve analysis showed that the AUC (area under the curve) of the four combined independent factors was 0.881 (95% CI: 0.744-0.960), while the AUC for the CECT/MRI method was 0.905 (95% CI: 0.774-0.973), and the combined AUC for the independent factors and CECT/MRI was 0.929 (95% CI: 0.805-0.985). There were not statistically significant among the three AUCs (P 0.05).CECT/MRI was the effective diagnostic indicator for IHH. However, the combined clinical and ultrasound diagnoses, including age at diagnosis, lesion size, RI and AFP, can achieve the same effectiveness as CECT/MRI.
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المؤلفون: David N O'Dwyer, Tao Huang, Prachi P. Agarwal, Aamer Chugtai, Gabin Yun
المصدر: Clinical imaging. 70
مصطلحات موضوعية: Aged, 80 and over, medicine.medical_specialty, Lung Neoplasms, business.industry, Biopsy, Context (language use), 030218 nuclear medicine & medical imaging, Diagnosis, Differential, 03 medical and health sciences, 0302 clinical medicine, 030220 oncology & carcinogenesis, Surgical biopsy, Medicine, Humans, Radiology, Nuclear Medicine and imaging, Female, Radiology, business, Tomography, X-Ray Computed, Lung
الوصف: We report the case of an 80-year-old woman presenting with randomly distributed ground glass nodules in the lungs. Since this imaging appearance can be confusing and can mimic other disease processes, it is important to have an organized approach. In this specific case, the distribution and appearance of nodules, their presence for a prolonged period as well as the clinical context were clues to the diagnosis of diffuse pulmonary meningotheliomatosis (DPM). The final diagnosis was established by surgical biopsy. This article reviews the current literature on DPM, imaging appearance, and an algorithmic approach to the presented case.
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المؤلفون: Richard Ha, Sarah Goodman, Victoria L. Mango, Hanina Hibshoosh, Kim Clarkin, Lauren Friedlander, Ralph Wynn
المصدر: Clinical Imaging. 50:78-85
مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Adolescent, Male breast, Breast Neoplasms, Transgender Persons, Breast Neoplasms, Male, 030218 nuclear medicine & medical imaging, Diagnosis, Differential, 03 medical and health sciences, 0302 clinical medicine, Invasive breast carcinoma, Radiologists, Carcinoma, medicine, Humans, Radiology, Nuclear Medicine and imaging, Breast, skin and connective tissue diseases, Aged, Breast Hemangioma, business.industry, Middle Aged, medicine.disease, Gynecomastia, 030220 oncology & carcinogenesis, Male breast disease, Female, Radiology, Differential diagnosis, business
الوصف: Male breast disease is uncommon. Men presenting with breast symptoms may represent unique diagnostic challenges for the radiologist, particularly if imaging findings are not classic for gynecomastia or carcinoma. In this paper we review 10 unusual male breast cases, 5 benign and 5 malignant, including the radiologic findings, differential diagnosis, pathology and management.
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