443 results match your criteria Papillary Necrosis Imaging

EWSR1::YY1 fusion positive peritoneal epithelioid mesothelioma harbors mesothelioma epigenetic signature: Report of 3 cases in support of an emerging entity.

Genes Chromosomes Cancer 2022 Jun 4. Epub 2022 Jun 4.

Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA.

Mesothelioma is a rare, aggressive malignant neoplasm of mesothelial origin. A small subset of peritoneal mesothelioma is driven by recurrent gene fusions, mostly EWSR1/FUS::ATF1 fusions, with predilection for young adults. To date, only two cases of mesothelioma harboring EWSR1::YY1 fusions have been described. Read More

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Acute pyelonephritis revealing a rare renal collision tumor of papillary and chromophobe cell carcinoma with sarcomatoid features.

Oxf Med Case Reports 2022 May 23;2022(5):omac048. Epub 2022 May 23.

Department of Urology, Mohamed VI University Hospital Center, Mohamed I University, Oujda, Morocco.

A 59-year-old male patient was admitted to the emergency room with febrile right flank pain. The computed tomography scan and the magnetic resonance imaging had objectified lesion image occupying the upper half of the right kidney, measuring 82 mm, suggesting an infectious origin without excluding the infected tumor. He was put under antibiotics. Read More

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[Clinical effect of minimally invasive duodenum preserving pancreatic head resection for benign and pre-malignant lesions of pancreatic head].

Zhonghua Wai Ke Za Zhi 2022 Jan;60(1):39-45

Bengbu Medical College,Bengbu 233030,China.

To examine the clinical effect of minimally invasive duodenum preserving pancreatic head resection(DPPHR) for benign and pre-malignant lesions of pancreatic head. The clinical data of patients with diagnosis of benign or pre-malignant pancreatic head tumor were retrospectively collected and analyzed,all of them underwent laparoscopic or robotic DPPHR between October 2015 and September 2021 at Division of Gastrointestinal and Pancreatic surgery,Zhejiang Provincial People's Hospital. Thirty-three patients were enrolled with 10 males and 23 females. Read More

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January 2022

Analysis of CT, MRI imaging features of renal cell carcinoma with different histopathological types.

J BUON 2021 Sep-Oct;26(5):2053-2058

Department of Imaging, Affiliated Hospital of Jining Medical University, Jining 272029, P.R.China.

Purpose: This study aimed to investigate the computed tomography (CT) and magnetic resonance imaging (MRI) features of different histological types of renal cell carcinoma (RCC) (clear cell RCC (ccRCC), papillary RCC (pRCC), chromophobe RCC (chRCC).

Methods: The clinical data of 67 patients (including 38 patients with ccRCC, 20 patients with pRCC and 9 patients with chRCC) with RCC confirmed pathologically in the Affiliated Hospital of Jining Medical University were retrospectively analyzed. All patients underwent CT, MRI plain scan and three-phase enhanced scan, and their CT and MRI imaging features were analyzed. Read More

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February 2022

Pancreatic ductal adenocarcinomas associated with intraductal papillary mucinous neoplasms (IPMNs) versus pseudo-IPMNs: relative frequency, clinicopathologic characteristics and differential diagnosis.

Mod Pathol 2022 01 13;35(1):96-105. Epub 2021 Sep 13.

Department of Pathology, Koç University Hospital and Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey.

The literature is highly conflicted on what percentage of pancreatic ductal adenocarcinomas (PDACs) arise in association with intraductal papillary mucinous neoplasms (IPMNs). Some studies have claimed that even small (Sendai-negative) IPMNs frequently lead to PDAC. Recently, more refined pathologic definitions for mucin-lined cysts were provided in consensus manuscripts, but so far there is no systematic analysis regarding the frequency and clinicopathologic characteristics of IPMN-mimickers, i. Read More

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January 2022

Intravascular papillary endothelial hyperplasia of the cavernous sinus-A rare occurrence.

Indian J Pathol Microbiol 2021 Jul-Sep;64(3):541-544

Department of Pathology, Seth G S Medical College and K E M Hospital, Mumbai, Maharashtra, India.

Intravascular papillary endothelial hyperplasia (IPEH) is a benign, reactive proliferation of endothelial cells within areas of thrombus. It most commonly occurs in the skin and subcutaneous tissue, with less than 40 cases reported in intracranial location. Ours is the first case report from India of IPEH in the cavernous sinus. Read More

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November 2021

Ultrasound-Guided Percutaneous Laser Ablation of the Thyroid Gland in a Swine Model: Comparison of Ablation Parameters and Ablation Zone Dimensions.

Cardiovasc Intervent Radiol 2021 Nov 12;44(11):1798-1806. Epub 2021 Jul 12.

Interventional Radiology Service, Department of Radiology, Weill-Cornell Medical College, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Howard 118, New York 10065, T 212 639 2209, New York, NY, USA.

Background: To compare laser ablation (LA) zone dimensions at two predetermined energy parameters to cover a theoretical 10 mm zone + 2 mm margin in a thyroid swine model.

Methods: Approval of the Institutional Animal Care and Use Committee was obtained. After hydrodissection, an ultrasound-guided LA (Elesta Echolaser X4 with Orblaze technology, 1064 nm) was performed in the periphery of the thyroid in 10 swine. Read More

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November 2021

Pediatric spinal intramedullary anaplastic myxopapillary ependymoma: a case report.

Childs Nerv Syst 2022 01 14;38(1):223-227. Epub 2021 Jun 14.

Department of Neurosurgery, Division of Pediatric Neurosurgery, Northwestern University Feinberg School of Medicine/Ann and Robert H. Lurie Children's Hospital, 225 E. Chicago Avenue, Chicago, IL, 60611, USA.

A 6-year-old girl presented with a 1-week history of progressive upper and lower extremity weakness and bilateral upper extremity dysesthesia. Imaging demonstrated a 4.7 × 1. Read More

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January 2022

Renal Papillary Necrosis Associated With Normocalcemic Primary Hyperparathyroidism.

AACE Clin Case Rep 2021 Mar-Apr;7(2):113-116. Epub 2020 Dec 28.

Department of Endocrinology, Diabetes & Metabolism, Walter Reed National Military Medical Center, Bethesda, Maryland.

Objectives: Renal papillary necrosis (RPN) occurring in primary hyperparathyroidism (PHPT) has not been reported. We present a 50-year-old woman who manifested RPN associated with hypercalciuria and normocalcemic PHPT.

Methods: The diagnosis of RPN was based on imaging studies (ultrasound and computed tomography [CT] scan). Read More

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December 2020

[Detection of kidney stones - Imaging and laboratory chemistry including urine analysis].

Jan Tuma

Ther Umsch 2021 Jun;78(5):207-213

EFSUMB Ultrasound Learning Center, Klinik Hirslanden, Zürich.

Detection of kidney stones - Imaging and laboratory chemistry including urine analysis Nephrolithiasis is often the first manifestation of renal colic. This is usually caused by ureteral stones, but also by blood clots, lost papillary necrosis, tumor-related ureteral stenosis or urogenital TB. Today, kidney stones are primarily detected by ultrasound. Read More

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Stereotactic Radiosurgery for Differentiated Thyroid Cancer Brain Metastases: An International, Multicenter Study.

Thyroid 2021 08 11;31(8):1244-1252. Epub 2021 May 11.

Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, USA.

Brain metastases (BM) from differentiated thyroid cancer are rare. Stereotactic radiosurgery (SRS) is commonly used for the treatment of BMs; however, the experience with SRS for thyroid cancer BMs remains limited. The goal of this international, multi-centered study was to evaluate the efficacy and safety of SRS for thyroid cancer BMs. Read More

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[Ruptured chordae tendineae of tricuspid valve in neonate with intractable persistent pulmonary hypertension: a case report and literature review].

Zhonghua Er Ke Za Zhi 2021 Apr;59(4):294-298

Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China.

To analyze the clinical characteristics and treatment of tricuspid valve prolapse caused by chordal rupture complicated with persistent pulmonary hypertension in neonates. The clinical data of a male neonate with tricuspid valve prolapse complicated with persistent pulmonary hypertension admitted to the Neonatal Intensive Care Unit of Children's Hospital of Hebei Province in November 2018 was analyzed retrospectively. Related literature up to September 2020 was searched with the strategy of "(neonate OR newborn) AND (tricuspid valve prolapse) AND (rupture OR necrosis) AND (papillary muscle OR chordae tendineae) AND (pulmonary hypertension)" in Wanfang, CNKI and PubMed database in Chinese and English. Read More

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Chameleonic appearance of caseous calcification of the mitral valve - still a problem for its appropriate management.

Rom J Morphol Embryol 2020 Apr-Jun;61(2):545-550

Discipline of Pathophysiology, Department of Functional Sciences, Victor Babeş University of Medicine and Pharmacy, Timişoara, Romania;

According to the research literature, the caseous calcification of the mitral annulus (CCMA) is a rare variant of the mitral annulus calcification (MAC) entity, described mostly in elderly women. The aim of this study was to present the case of a 53-year-old female patient with caseous calcification of the mitral valve annulus and posterior cusp, which was diagnosed as papillary fibroelastoma. An echo-dense and quasi-homogeneous tumoral mass, measuring 1. Read More

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September 2021

Hobnail variant of papillary thyroid carcinoma showing goiter-like presentation and rapid growth.

Endocrinol Diabetes Metab Case Rep 2021 Jan 27;2021. Epub 2021 Jan 27.

Unit of Metabolic Diseases, 'S.M. Goretti' Hospital, Latina, Italy.

Summary: We present the case of a 47-year-old Caucasian previously healthy woman with a voluminous thyroid nodule occupying almost the entire anterior neck region. The lesion had progressively increased in size during the previous 3 months and the patient presented intermittent symptoms of dysphagia and odynophagia with a slight change in voice. Fine needle aspiration showed papillary carcinoma. Read More

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January 2021

A Rare Presentation of Renal Papillary Necrosis in a COVID-19-Positive Patient.

Case Rep Urol 2021 11;2021:6611861. Epub 2021 Jan 11.

Urology Division of Surgery Department, Hazm Mebaireek General Hospital, Hamad Medical Corporation, Industrial Area Street No. 33, PO Box 3050, Doha, Qatar.

In this case report we describe an unusual presentation of severe acute papillary necrosis in a COVID-19-positive patient. An emergency flexible ureteroscopy greatly helped in the establishment of the diagnosis. In the international literature, there is a paucity of intraoperative endoscopic images representing severe renal papillary necrosis. Read More

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January 2021

Computed tomography features predicting aggressiveness of malignant parenchymal renal tumors suitable for partial nephrectomy.

Minerva Urol Nephrol 2021 02 17;73(1):17-31. Epub 2020 Nov 17.

Division of Urology, Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Turin, Italy.

The aim of this study was to identify and standardize computed tomography (CT) features having a potential role in predicting aggressiveness of malignant parenchymal renal tumors suitable for partial nephrectomy (PN). We performed a non-systematic review of the recent literature to evaluate the potential impact of CT variables proposed by the Society of Abdominal Radiology Disease-Focused Panel on Renal Cell Carcinoma in predicting aggressiveness of newly diagnosed malignant parenchymal renal tumors. The analyzed variables were clinical tumor size, tumor growth rate, enhancement characteristics, amount of cystic component, polar and capsular location, tumor margins and distance between tumor and renal sinus. Read More

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February 2021

A Case of Squamous Cell Carcinoma of the Breast with Low-Grade Adenosquamous Carcinoma.

Case Rep Oncol 2020 Sep-Dec;13(3):1152-1157. Epub 2020 Sep 23.

Department of Surgery, Kishiwada Tokushukai Hospital, Kishiwada, Japan.

A 68-year-old woman with a breast mass was referred to our hospital. Imaging studies showed an oval well-defined mass, 1.3 cm in size, in her left lower outer quadrant of the breast. Read More

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September 2020

Histological subtypes of solid-dominant invasive lung adenocarcinoma: differentiation using dual-energy spectral CT.

Clin Radiol 2021 01 26;76(1):77.e1-77.e7. Epub 2020 Oct 26.

Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuzhong District, Chongqing, 400016, China. Electronic address:

Aim: To investigate the value of dual-energy spectral computed tomography (DESCT) for evaluating the histological subtypes of solid-dominant invasive lung adenocarcinoma (SILADC).

Materials And Methods: Sixty-seven patients with SILADC were enrolled. All patients underwent DESCT and were divided into Group I (those with a lepidic/acinar/papillary predominant pattern) and Group II (those with a solid/micropapillary predominant pattern) based on their correlation with prognosis. Read More

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January 2021

Gross hematuria: A rare presentation of disseminated tuberculosis.

Indian J Tuberc 2020 Oct 11;67(4):564-566. Epub 2020 Jul 11.

Department of Urology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India.

Tuberculosis (TB) is a multi-systemic disease instigated by Mycobacterium tuberculosis that can involve any organ. In any child presenting with clinical features involving multiple organ systems, TB forms an important differential. This holds particularly for endemic countries like India. Read More

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October 2020

Renal Papillary Necrosis Following Mesenteric Artery Stenting.

Cureus 2020 Oct 6;12(10):e10824. Epub 2020 Oct 6.

Nephrology, Delray Medical Center, Delray Beach, USA.

A 62-year-old man presented with left flank pain and hematuria four days after undergoing mesenteric artery balloon angioplasty and stent placement. Imaging revealed left renal infarction with associated papillary necrosis and a thrombus in the left collecting system causing acute renal obstruction. Complete obstruction was confirmed using MAG3 Renal Scan with Lasix. Read More

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October 2020

Successful tracheal necrosis management using a pedicle pectoralis flap: A case report.

Turk Gogus Kalp Damar Cerrahisi Derg 2020 Jul 28;28(3):547-551. Epub 2020 Jul 28.

Department of Thoracic Surgery, Tehran University of Medical Science, Tehran, Iran.

Thyroidectomy is considered an overall low-risk procedure. However, severe life-threatening complications, including tracheal necrosis may occur postoperatively. A 45-year-old male patient was referred to our clinic for papillary thyroid carcinoma surgery. Read More

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Prognostic value of histopathological DCIS features in a large-scale international interrater reliability study.

Breast Cancer Res Treat 2020 Oct 30;183(3):759-770. Epub 2020 Jul 30.

Division of Psychosocial Research and Epidemiology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Amsterdam, The Netherlands.

Purpose: For optimal management of ductal carcinoma in situ (DCIS), reproducible histopathological assessment is essential to distinguish low-risk from high-risk DCIS. Therefore, we analyzed interrater reliability of histopathological DCIS features and assessed their associations with subsequent ipsilateral invasive breast cancer (iIBC) risk.

Methods: Using a case-cohort design, reliability was assessed in a population-based, nationwide cohort of 2767 women with screen-detected DCIS diagnosed between 1993 and 2004, treated by breast-conserving surgery with/without radiotherapy (BCS ± RT) using Krippendorff's alpha (KA) and Gwet's AC2 (GAC2). Read More

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October 2020

[Bilateral renal papillary necrosis of spontaneous resolution as a cause of microscopic hematuria. Report of one case].

Rev Med Chil 2020 Jan;148(1):118-122

Hospital Las Higueras de Talcahuano, Unidad Docente Asistencial de la Universidad de Concepción, Talcahuano, Chile.

Renal papillary necrosis is an infrequent cause of hematuria characterized by ischemic necrosis of the renal medulla, especially the papilla. Its most common cause is analgesic abuse. Despite being oligo-symptomatic, in many cases its presence is associated with serious functional sequelae. Read More

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January 2020

Gender difference in the transabdominal ultrasound findings of solid-pseudopapillary neoplasm.

Pancreatology 2020 Jul 14;20(5):997-1003. Epub 2020 Jul 14.

Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan.

Background: Solid-pseudopapillary neoplasm (SPN) is a rare tumour that is mostly observed in young females. However, onset in males is also observed, and they do not necessarily present with typical findings. A comparison between male and female SPN patients focusing on the ultrasound findings was performed. Read More

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Ratio of maximum to minimum tumor diameter can predict the pathology type of renal cell carcinoma before surgery.

Tumori 2021 Feb 29;107(1):64-70. Epub 2020 Jun 29.

Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Chaoyang District, Beijing, China.

Introduction: Previous reports have described several methods and markers used to distinguish pathologic subtypes of renal cell carcinoma (RCC). This study aimed to evaluate the utility of the ratio of maximum to minimum tumor diameter (ROD) in predicting pathologic subtypes of RCC.

Methods: Data from patients with RCC who underwent surgery between January 2015 and December 2019 were reviewed retrospectively. Read More

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February 2021

Abdominal Manifestations of Sickle Cell Disease.

Curr Probl Diagn Radiol 2021 Mar-Apr;50(2):241-251. Epub 2020 Jun 1.

Department of Radiology and Imaging, Medical College of Georgia, Augusta, GA.

Sickle cell disease is a debilitating hematologic process that affects the entire body. Disease manifestations in the abdomen most commonly result from vaso-occlusion, hemolysis, or infection due to functional asplenia. Organ specific manifestations include those involving the liver (eg, hepatopathy, iron deposition), gallbladder (eg, stone formation), spleen (eg, infarction, abscess formation, sequestration), kidneys (eg, papillary necrosis, infarction), pancreas (eg, pancreatitis), gastrointestinal tract (eg, infarction), reproductive organs (eg, priapism, testicular atrophy), bone (eg, marrow changes, avascular necrosis), vasculature (eg, vasculopathy), and lung bases (eg, acute chest syndrome, infarction). Read More

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October 2021

Clinical Features and Prognostic Outcome of Renal Collecting Duct Carcinoma: 12 Cases from a Single Institution.

Cancer Manag Res 2020 19;12:3589-3595. Epub 2020 May 19.

Department of Traditional Chinese Medicine and Rheumatology, Southwest Hospital, Army Military Medical University, Chongqing, China.

Purpose: Collecting duct carcinoma (CDC) is extremely rare and has high malignancy and poor prognosis. The purpose of this research is to explore the clinical characteristic, imaging, pathological diagnosis, treatment and prognostic outcome of CDCs.

Materials And Methods: The clinical data of 12 CDC cases who had been surgically treated between August 2007 and August 2017 and verified the diagnosis of CDC by postoperative pathological and/or immunohistochemical staining (IHC) results were retrospectively analyzed, and related works of literature were reviewed. Read More

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Role of Cross-sectional Imaging (CT/MRI) in Characterization and Distinguishing Benign from Malignant/Potentially Malignant Cystic Lesions of Pancreas.

J Clin Imaging Sci 2020 16;10:28. Epub 2020 May 16.

Biostatistics, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.

Objectives: The aim of the study was to evaluate the accuracy of computed tomography/magnetic resonance imaging (CT/MRI) in characterizing cystic lesions of the pancreas and in differentiating between benign and malignant/potentially malignant lesions.

Material And Methods: A retrospective study was performed on patients with pancreatic cystic lesions who underwent pre-operative imaging and surgery between October 2004 and April 2017 at a tertiary care teaching hospital. The images were reviewed for specific characteristics and diagnoses recorded independently by two radiologists who were blinded to the histopathological examination (HPE) report. Read More

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Is imagery distinctive in papillary renal cell carcinoma subtypes?

Tunis Med 2020 Feb;98(2):131-137

Introduction: The subdivision into two entities of papillary renal cell carcinoma (PRCC) was established on histological criteria. It's in fact possible to distinguish the two subtypes by the means of radiological and progressive data. The subtype 1 is associated with the favorable profile. Read More

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February 2020

Investigation of Fluorodeoxyglucose Positron Emission Tomography for the Diagnosis of Solid Pseudopapillary Neoplasm of the Pancreas: A Study Associated With a National Survey of Solid Pseudopapillary Neoplasms.

Pancreas 2019 Nov/Dec;48(10):1312-1320

From the Department of Gastroenterology and Metabolism, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University.

Objectives: This study aimed to investigate the utility of fluorodeoxyglucose (FDG) positron emission tomography for solid pseudopapillary neoplasm (SPN) diagnosis.

Methods: The subjects included 53 cases of SPN. We compared the maximal standardized uptake volume (SUVmax) with those of 25 cases of pancreatic duct cancer and 18 cases of pancreatic neuroendocrine neoplasm. Read More

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September 2020