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https://www.readbyqxmd.com/read/28816798/solid-liver-lesions-in-an-infant-with-neonatal-cholestasis-is-it-always-malignant
#1
Zeren Bariş, Pelin Börcek, Kemal Murat Haberal, Figen Özçay
In this report we describe a patient with neonatal cholestasis who was found to have a liver lesion with suspicious imaging features, although ultimately it was histologically proved to be a pseudotumor. We discuss the characteristic features and imaging findings of macroregenerative nodules of the liver.
August 14, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28812157/augmented-reality-in-a-tumor-resection-model
#2
Pauline Chauvet, Toby Collins, Clement Debize, Lorraine Novais-Gameiro, Bruno Pereira, Adrien Bartoli, Michel Canis, Nicolas Bourdel
BACKGROUND: Augmented Reality (AR) guidance is a technology that allows a surgeon to see sub-surface structures, by overlaying pre-operative imaging data on a live laparoscopic video. Our objectives were to evaluate a state-of-the-art AR guidance system in a tumor surgical resection model, comparing the accuracy of the resection with and without the system. Our system has three phases. Phase 1: using the MRI images, the kidney's and pseudotumor's surfaces are segmented to construct a 3D model...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28806347/pediatric-pseudotumor-cerebri-syndrome
#3
Paul H Phillips, Claire A Sheldon
Idiopathic intracranial hypertension, otherwise known as primary pseudotumor cerebri syndrome (PTCS), most frequently occurs in obese women of childbearing age. However, children may be affected as well. This review will address recent findings regarding demographics, diagnosis, and treatment of pediatric PTCS. Prepubertal children with primary PTCS have an equal sex distribution and less frequent obesity compared with adult patients. However, female gender and obesity are risk factors for primary PTCS in postpubertal children...
September 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28803167/igg4-related-disease-a-new-etiology-underlying-diffuse-intracranial-dilating-vasculopathy
#4
Evan S Marlin, Davis Dornbos, Daniel S Ikeda, Norman L Lehman, Ciarán J Powers
BACKGROUND: Diffuse intracranial aneurysmal vasculopathy is a rare condition, previously described in patients with human immunodeficiency virus (HIV) infection. IgG4 related disease (IgG4-RD) is a recognized inflammatory disease of systemic organs, leading to fibrosis of connective tissues. It has also been linked to inflammatory dilating aortic aneurysms, coronary vascular disease, hypophysitis, orbital pseudotumor and pachymeningitis. It has not yet been described as a cause of diffuse intracranial dilating vasculopathy...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28795998/paraduodenal-pancreatitis-imaging-and-pathologic-correlation-of-47-cases-elucidates-distinct-subtypes-and-the-factors-involved-in-its-etiopathogenesis
#5
Takashi Muraki, Grace E Kim, Michelle D Reid, Pardeep Mittal, Gabriela Bedolla, Bahar Memis, Burcin Pehlivanoglu, Alexa Freedman, Ipek Erbarut Seven, Hyejeong Choi, David Kooby, Shishir K Maithel, Juan M Sarmiento, Alyssa Krasinskas, Volkan Adsay
Clinicopathologic characteristics of paraduodenal (groove) pancreatitis (PDP) remain to be fully unraveled. In this study, 47 PDPs with preoperative enhanced images available were subjected to detailed comparative analysis in conjunction with pathologic findings. PDP were predominantly in males (3:1) with a mean age of 50 years, and 60% had a preoperative diagnosis of cancer. Mean lesional size was 3.1 cm. Three distinct subtypes were identified by imaging. Solid-tumoral (type-1) with groove-predominant (type-1A, 36%) forming a distinct solid band between the duodenum and pancreas often with histologic microabscesses (69% vs...
August 8, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28790473/longitudinal-followup-of-incidentally-detected-pseudotumors-in-patients-with-metal-on-metal-implants-a-retrospective-study
#6
Khushboo Pilania, Bhavin Jankharia
BACKGROUND: This study describes the significance and temporal evolution of incidentally detected, presumed, metal-induced reactive periprosthetic masses in patients with metal on metal (MoM) hip arthroplasty and its management. The literature concerning the temporal evolution of these lesions is meagre and so it is still unclear, whether asymptomatic patients with periprosthetic collections should undergo revision. MATERIALS AND METHODS: Patients with MoM hip replacements fitted with a recalled implant (ASR, DuPuy) often undergo magnetic resonance imaging with metal artifact reduction sequences to look for complications...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28783523/a-case-of-sclerosing-angiomatoid-nodular-transformation-of-the-spleen-with-increased-accumulation-of-fluorodeoxyglucose-after-5-year-follow-up
#7
Keiso Matsubara, Akihiko Oshita, Takashi Nishisaka, Tamito Sasaki, Yasuhiro Matsugu, Hideki Nakahara, Takashi Urushihara, Toshiyuki Itamoto
INTRODUCTION: Sclerosing angiomatoid nodular transformation (SANT) of spleen is a new entity defined as a benign pathologic lesion. Fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) shows weak accumulation, thereby ruling out the malignancy in preoperative diagnosis is difficult. Herein, we reported a case of shrinking SANT with increased FDG accumulation during a 5-year follow-up period, which was treated by laparoscopic splenectomy. PRESENTATION OF CASE: A 64-year-old female had been referred to our hospital for the evaluation of a splenic tumor...
July 21, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28761304/fibro-osseous-pseudotumor-of-the-digit-presenting-as-an-enlarging-erythematous-subungual-nodule
#8
Yong Se Cho, Sook Young Park, Yong Won Choi, Jee Hee Son, Yun Sun Byun, Bo Young Chung, Hee Jin Cho, Hye One Kim, Chun Wook Park
No abstract text is available yet for this article.
August 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28756364/chiari-i-malformation-with-underlying-pseudotumor-cerebri-poor-symptom-relief-following-posterior-decompression-surgery
#9
Ahmed Alnemari, Tarek R Mansour, Stephanie Gregory, William K Miller, Mark Buehler, Daniel Gaudin
INTRODUCTION: 
 Pseudotumor cerebri (PTC) patients exhibit clear clinical signs and symptoms of higher intracranial pressure (ICP) without ventricular enlargement or mass lesions. The clinical picture of patients with PTC can sometimes be similar to that of Chiari Malformation type I (CMI). There is some evidence that Chiari I malformation and PTC may coexist, which raises the question of whether PTC is an idiopathic disease or a complication of posterior decompression surgery-treatment of choice for Chiari I malformation...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28754842/oral-fluoroquinolones-and-risk-of-secondary-pseudotumor-cerebri-syndrome-nested-case-control-study
#10
Mohit Sodhi, Claire A Sheldon, Bruce Carleton, Mahyar Etminan
OBJECTIVE: To quantify the risk of secondary pseudotumor cerebri syndrome (PTCS) with fluoroquinolones. METHODS: A case-control study of people 15-60 years of age from the LifeLink Database (QuintilesIMS Parsippany, NJ) was conducted. Cases had the first ICD-9-CM code for benign intracranial hypertension (BIH) as well as having received a procedure code for an MRI or CT scan and a lumbar puncture within 15 days or 30 days of the BIH code. For each case, 10 controls were selected using density-based sampling...
July 28, 2017: Neurology
https://www.readbyqxmd.com/read/28744088/igg4-related-disease-simulating-paraneoplastic-syndrome-role-of-18-fdg-pet-ct-imaging
#11
Madhuri S Mahajan, Sudeshna Maitra, Natasha Singh, Melvika Pereira
Immunoglobulin G4 (IgG4)-related systemic disease (IgG4-RSD) is a new systemic entity associated with autoimmune pancreatitis (AIP). Other organ involvements take the form of sclerosing cholangitis, sclerosing cholecystitis, sclerosing sialadenitis, retroperitoneal fibrosis, and interstitial nephritis. Recently, lung diseases related to IgG4 have been described to occur with or without other organ involvement. These diseases include interstitial lung disease (ILD), pulmonary inflammatory pseudotumor, and lymphomatoid granulomatosis...
April 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28732301/a-case-of-multiple-inflammatory-hepatic-pseudotumor-protruding-from-the-liver-surface-after-colonic-cancer
#12
Toshikatsu Nitta, Jun Kataoka, Yoshihiro Inoue, Kensuke Fujii, Masahito Ohta, Hiroshi Kawasaki, Atsushi Takeshita, Takashi Ishibashi
INTRODUCTION: Inflammatory hepatic pseudotumor (IHPT) is an important benign liver disease because it is difficult to clinically and radiologically distinguish from malignant tumors. PRESENTATION OF CASE: Here, we describe a case of a 67-year-old male patient diagnosed with multiple inflammatory hepatic pseudotumors. The patient had undergone left hemicolectomy for descending colonic cancer (T3 N0 M0 stage IIA) 2 years prior. He underwent segment 6 and segment 7 partial hepatectomy because of suspected liver metastasis...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28727376/inflammatory-pseudotumor-of-kidney-a-challenging-diagnostic-entity
#13
Anudeep Mukkamala, Robin M Elliott, Nicholas Fulton, Vikas Gulani, Lee E Ponsky, Riccardo Autorino
No abstract text is available yet for this article.
June 14, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28723742/liver-transplantation-using-the-otherwise-discarded-partial-liver-resection-graft-with-hepatic-benign-tumor-analysis-of-a-preliminary-experience-on-15-consecutive-cases
#14
Guoqiang Li, Xiaoxin Mu, Xinli Huang, Xiaofeng Qian, Jianjie Qin, Zhongming Tan, Wenjie Zhang, Xiaoliang Xu, Shanbai Tan, Zhijun Zhu, Wei Li, Xuan Wang, Xuehao Wang, Beicheng Sun
RATIONALE: The shortage of available donor organs limits the development of liver transplantation. This case-serial study presents a novel way to expand the donor pool by using the other-wise discarded partial liver resection graft with hepatic benign tumor. PATIENT CONCERNS: From 2012 to 2016, 15 patients with hepatic lesions were admitted to our hospital. 12 patients suffered from right epigastric discomfort and 3 patients worried about uncertain diagnosis. INTERVENTIONS: Regular hepatic lobectomy was performed for all patients and after back-table management the resected partial liver grafts were used for patients with end-stage liver disease for liver transplantation...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28721191/small-bowel-obstruction-due-to-mesenteric-abscess-caused-by-mycobacterium-avium-complex-in-an-hiv-patient-a-case-report-and-literature-review
#15
S M Mohar, Saqib Saeed, Alexius Ramcharan, Hector Depaz
Small bowel obstruction in HIV patients is reportedly caused by inflammatory pseudotumor, Kaposi's sarcoma, cryptococcal lymphadenopathy and intestinal tuberculosis. The incidence of Mycobacterium avium complex (MAC) infection in HIV patients is 3% for CD4 cell count of 100-199 /mm(3). MAC causing small bowel obstruction is rarely reported in the literature. We report a rare case of MAC causing mesenteric abscess with small bowel obstruction in a HIV patient with a CD4 cell count of 144 /mm(3). Patient was a 35-year-old HIV-positive male on highly active antiretroviral therapy who presented with partial small bowel obstruction secondary to mesenteric abscess...
July 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28709788/making-sense-of-metal-allergy-and-hypersensitivity-to-metallic-implants-in-relation-to-hand-surgery
#16
REVIEW
Thomas J Christensen, Shefali A Samant, Alexander Y Shin
All metals implanted into a biological system undergo some degree of corrosion depending upon its composition. The electrochemical process of corrosion produces free metal ions, which may activate the host's immune system through a variety of mechanisms. Whereas dermal metal hypersensitivity is common, affecting 10% to 15% of the population, the immune reaction from implanted metals is much less common (< 0.1%), but has been associated with metal allergy and hypersensitivity producing a multitude of patient symptoms...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28708728/differentiating-primary-central-nervous-system-lymphomas-from-glioblastomas-and-inflammatory-demyelinating-pseudotumor-using-relative-minimum-apparent-diffusion-coefficients
#17
Jian-Bo Wen, Wei-Yuan Huang, Wei-Xing-Zi Xu, Gang Wu, Dao-Ying Geng, Bo Yin
OBJECTIVE: Our purpose was to evaluate the diagnostic performance of diffusion-weighted imaging, the relative minimum apparent diffusion coefficient (rADCmin) in differentiating primary central nervous system lymphomas (PCNSLs) from glioblastomas (GBMs) and inflammatory demyelinating pseudotumors (IDPs). MATERIALS AND METHODS: Magnetic resonance images were reviewed retrospectively in 82 patients including 39 PCNSLs, 35 GBMs, and 8 IDPs. Regions of interest were drawn around the tumor on contrast-enhanced axial images; these images were transferred onto coregistered ADC maps to obtain the ADCmin, and the normalized ADCmin ratios (rADCmin) were calculated using the formula rADCmin = ADCmin of the lesion / ADCmin of the normal white matter...
July 13, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28695179/inflammatory-pseudotumor-after-ceramic-on-ceramic-total-hip-arthroplasty
#18
Joshua Campbell, Sean Rajaee, Earl Brien, Guy D Paiement
We present a unique case of a symptomatic adverse local tissue reaction in a patient with a ceramic-on-ceramic total hip bearing surface. To our knowledge, this pathological finding has not yet been described in a ceramic-on-ceramic articulation without a cobalt-chromium alloy trunnion or modular neck component as a source of metal wear. We conclude that despite its mechanical mostly benign wear characteristics, ceramic wear debris is not entirely inert and may lead to the development of adverse local tissue reaction...
June 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28695177/unusual-presentation-of-failed-metal-on-metal-total-hip-arthroplasty-with-features-of-neoplastic-process
#19
Robert P Runner, Briggs M Ahearn, George N Guild
Metal-on-metal (MoM) total hip arthroplasty (THA) is associated with increased incidence of failure from metallosis, adverse tissue reactions, and the formation of pseudotumors. This case highlights a 53-year-old female with an enlarging painful thigh mass 12 years status post MoM THA. Radiographs and advanced imaging revealed an atypical mass with cortical bone destruction and spiculation, concerning for periprosthetic malignancy. Open frozen section biopsy was performed before undergoing revision THA in a single episode of care...
June 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28688018/current-pathologic-scoring-systems-for-metal-on-metal-tha-revisions-are-not-reproducible
#20
Christiaan Smeekes, Arjen H G Cleven, Bart C H van der Wal, Stefan V Dubois, Remigio W Rouse, Bastiaan F Ongkiehong, Ron Wolterbeek, Rob G H H Nelissen
BACKGROUND: The aseptic lymphocyte vasculitis-associated lesion (ALVAL) score and the modified Oxford ALVAL score are frequently used scoring methods to evaluate the morphologic features of periprosthetic tissues around metal-on-metal (MoM) hip implants. Except for the initial studies of these two morphology scoring methods, to our knowledge, no other studies have reported on intraclass correlation coefficient (ICC) values for interobserver reliability of these scoring methods. QUESTIONS/PURPOSES: Are the ALVAL and Oxford ALVAL scores reproducible? METHODS: The periprosthetic tissue of 37 revisions of 36 patients with failed MoM THAs were independently scored by three experienced pathologists using ALVAL and Oxford ALVAL scoring methods...
July 7, 2017: Clinical Orthopaedics and related Research
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