432 results match your criteria Papillary Necrosis Imaging


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

View Article and Full-Text PDF
December 2020

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

Authors:
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

View Article and Full-Text PDF

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

Thyroid 2021 May 11. 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

View Article and Full-Text PDF

[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

View Article and Full-Text PDF

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

View Article and Full-Text PDF
February 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

View Article and Full-Text PDF
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

View Article and Full-Text PDF
January 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

View Article and Full-Text PDF
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

View Article and Full-Text PDF
January 2021

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

View Article and Full-Text PDF
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

View Article and Full-Text PDF

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

View Article and Full-Text PDF
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

View Article and Full-Text PDF
January 2020

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

View Article and Full-Text PDF
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

View Article and Full-Text PDF

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

View Article and Full-Text PDF

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

View Article and Full-Text PDF

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

View Article and Full-Text PDF
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

View Article and Full-Text PDF
September 2020

Anaplastic thyroid carcinoma diagnosed after treatment of lenvatinib for papillary thyroid carcinoma.

Endocrinol Diabetes Metab Case Rep 2019 Oct 1;2019. Epub 2019 Oct 1.

Department of Surgery, Yokohama City University School of Medicine, Yokohama City, Kanagawa, Japan.

Summary: Anaplastic transformation of a primary thyroid tumor whose process can be followed is rare. The objective this study is to report a case of anaplastic transformation of locally advanced papillary thyroid carcinoma after treatment with lenvatinib. A 74-year-old woman consulted a local physician because of cough and bloody sputum. Read More

View Article and Full-Text PDF
October 2019

Neuroendocrine Carcinoma and Intracystic Papillary Neoplasm: A Rare Association in the Gallbladder.

GE Port J Gastroenterol 2019 Aug 29;26(5):356-361. Epub 2019 Jan 29.

Serviço de Anatomia Patológica, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.

Neuroendocrine carcinoma of the gallbladder is a very rare neoplasia comprising only 0.2% of all the gastrointestinal neuroendocrine tumors. We present the case of an 85-year-old male with nonspecific gastrointestinal symptoms, progressive weight loss, and deterioration in the preceding 15 days. Read More

View Article and Full-Text PDF

Ultrasound Findings in Three Complex Cystic Breast Carcinomas: Correlation with Intrinsic Tumor Subtype.

Kurume Med J 2019 Sep 9;65(3):99-104. Epub 2019 Aug 9.

Department of Laboratory Medicine, Kurume University Medical Center.

In ultrasound examinations, mixed mammary gland masses are divided into either intracystic masses that contain a solid component in the cyst or solid masses that contain a fluid component in the mass. The histological types and subtypes of three complex cystic masses that showed different internal compositions in ultrasound were determined using the ultrasound findings of three patients. Case 1: The mass showed a large cystic component (bleeding) inside and a broad-based solid lesion at the margin in the ultrasound finding. Read More

View Article and Full-Text PDF
September 2019

Gas in the kidney in asymptomatic urinary tract infections in a patient with severe vesicoureteral reflex.

Saudi J Kidney Dis Transpl 2019 May-Jun;30(3):706-709

Saudi Center for Organ Transplantation, Riyadh, Saudi Arabia.

Diabetes mellitus (DM) is a common disease in Oman as in rest of Gulf Cooperation Council where metabolic syndrome is of high prevalence. DM is a foremost risk factor for urinary tract infections (UTIs). It is also linked to more complicated infections such as emphysematous pyelonephritis (EPN), emphysematous pyelitis (EP), renal/perirenal abscess, emphysematous cystitis, xanthogranulomatous pyelonephritis, and renal papillary necrosis. Read More

View Article and Full-Text PDF
January 2020

Cystic Degeneration of Hepatocellular Carcinoma Mimicking Mucinous Cystic Neoplasm.

Korean J Gastroenterol 2019 May;73(5):303-307

Departments of Gastroenterology and Hepatology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.

Spontaneous regression of tumors is an extremely rare event in hepatocellular carcinoma (HCC) with only a few reports available. With the accumulation of clinical information and tumor immunogenetics, several mechanisms for the cystic changes of HCC have been suggested, including arterial thrombosis, inflammation, and rapid tumor growth. This paper reports an uncommon case of the partial regression of HCC, which was initially misdiagnosed as a mucinous cystic neoplasm of the liver due to the unusual radiologic findings. Read More

View Article and Full-Text PDF

Renal papillary necrosis, an endoscopic vision.

Scand J Urol 2019 Oct 13;53(5):361-363. Epub 2019 May 13.

Department of Urology, University Clinic Hospital of Valencia, Valencia, Spain.

View Article and Full-Text PDF
October 2019

Can pseudocavitation in lung tumors predict the diagnosis of adenocarcinoma with lepidic growth?

Radiologia (Engl Ed) 2019 Sep - Oct;61(5):396-404. Epub 2019 May 9.

Residente, Servicio de Radiología, Povisa, Vigo, Pontevedra, España.

Objective: To determine the prevalence of pseudocavitation in lung tumors and whether its presence makes it possible to predict the diagnosis of adenocarcinoma with lepidic growth.

Material And Methods: We retrospectively reviewed chest CT studies for 212 consecutive lung tumors included in a CT perfusion database and for 351 consecutive adenocarcinomas diagnosed between July 2007 and September 2017. Two radiologists blinded to the pathology report determined whether air cysts were present in the tumors, excluding lesions with necrosis and those surrounded by bullae or emphysema. Read More

View Article and Full-Text PDF

Choroid plexus tumours on MRI: similarities and distinctions in different grades.

Cancer Imaging 2019 Mar 20;19(1):17. Epub 2019 Mar 20.

Medical Imaging Center, the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, No. 16, Ji Chang Lu, Guangzhou, 510405, People's Republic of China.

Background: The therapeutic planning varies for different grades of choroid plexus tumours (CPTs). The aim of this study was to define the similarities and distinctions among MRIs for different grades of CPTs, providing more guidance for clinical decisions.

Methods: We reviewed the MRI findings in 35 patients with CPT verified by surgical pathology, including 18 choroid plexus papillomas (CPPs, grade I), 11 atypical choroid plexus papillomas (aCPPs, grade II), and 6 choroid plexus carcinomas (CPCs, grade III). Read More

View Article and Full-Text PDF

[Pigmented microcystic chromophobe renal cell carcinoma: a clinicopathologic analysis of five cases].

Zhonghua Bing Li Xue Za Zhi 2018 Dec;47(12):926-930

Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China.

To investigate the clinicopathologic features, diagnostic and differential diagnostic aspects of pigmented microcystic chromophobe renal cell carcinoma (ChRCC). Five cases of pigmented microcystic ChRCC were collected at Zhejiang Provincial People's Hospital from January 2013 to January 2018. The clinical features, gross and histological appearances, immunohistochemistry and prognosis were analyzed and the relevant literature was reviewed. Read More

View Article and Full-Text PDF
December 2018

Apocrine papillary lesion: comparison of pathological findings from 22 years previously and the present.

Breast Cancer 2019 Jul 5;26(4):524-528. Epub 2018 Dec 5.

Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University Hospital, Kagoshima, Japan.

Apocrine papillary lesion (APL) is difficult to diagnose as benign or malignant. We experienced an APL remaining in the body for 22 years. We present a case of a 71-year-old woman who had undergone excisional biopsy 22 years previously at the first hospital that she visited. Read More

View Article and Full-Text PDF

Mono, bi- and tri-exponential diffusion MRI modelling for renal solid masses and comparison with histopathological findings.

Cancer Imaging 2018 Nov 26;18(1):44. Epub 2018 Nov 26.

Magnetic Detection & Imaging, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, Netherlands.

Purpose: To compare diffusion tensor imaging (DTI), intravoxel incoherent motion (IVIM), and tri-exponential models of the diffusion magnetic resonance imaging (MRI) signal for the characterization of renal lesions in relationship to histopathological findings.

Methods: Sixteen patients planned to undergo nephrectomy for kidney tumour were scanned before surgery at 3 T magnetic resonance imaging (MRI), with T-weighted imaging, DTI and diffusion weighted imaging (DWI) using ten b-values. DTI parameters (mean diffusivity [MD] and fractional anisotropy [FA]) were obtained by iterative weighted linear least squared fitting of the DTI data and bi-, and tri-exponential fit parameters (D, fand D, ff) using a nonlinear fit of the multiple b-value DWI data. Read More

View Article and Full-Text PDF
November 2018