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https://www.readbyqxmd.com/read/28929004/intraocular-plasmablastic-lymphoma-in-a-hiv-patient
#1
Carolline Fontes Alves Mariano, Glauce Lunardelli Trevisan, Antonio Augusto Velasco E Cruz, Fernando Chahud
Plasmablastic lymphoma (PBL) is a rare B-cell lymphoma occurring mainly in HIV patients. The tumor frequently involves extranodal sites such as the oral cavity, nasal cavity, gastrointestinal tract, skin, and lungs. The neoplastic cells are characterized by a plasmablastic appearance and typical immunophenotype that indicates plasma cell differentiation. Herein, we report a case of intraocular involvement by plasmablastic lymphoma in a HIV patient with a long history of cytomegalovirus retinitis and loss of vision...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28926609/developmental-expression-of-membrane-type-4-matrix-metalloproteinase-mt4-mmp-mmp17-in-the-mouse-embryo
#2
María José Blanco, Iván Rodríguez-Martín, Ana I R Learte, Cristina Clemente, María Gregoria Montalvo, Motoharu Seiki, Alicia G Arroyo, Cristina Sánchez-Camacho
Matrix metalloproteinases (MMPs) constitute a large group of endoproteases that play important functions during embryonic development, tumor metastasis and angiogenesis by degrading components of the extracellular matrix. Within this family, we focused our study on Mt4-mmp (also called Mmp17) that belongs to a distinct subset that is anchored to the cell surface via a glycosylphosphatidylinositol (GPI) moiety and with the catalytic site exposed to the extracellular space. Information about its function and substrates is very limited to date, and little has been reported on its role in the developing embryo...
2017: PloS One
https://www.readbyqxmd.com/read/28924679/psycho-oncology-a-patient-s-view
#3
Patricia Garcia-Prieto
Culturally the most important, valued, and less stigmatized part of cancer care is the medical part: The surgeon cutting the tumors out and the oncologist leading the strategic decision-making of the medical treatments available. The least valued and stigmatized part of cancer remains the psychosocial care. This chapter describes-through the eyes of an academic, psychologist, stage IV melanoma patient, and patient advocate-how one patient navigated changing psycho-oncological needs from early stage-to-stage IV through a whole range of psychological interventions available...
2018: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/28924151/dna-methylomes-reveal-biological-networks-involved-in-human-eye-development-functions-and-associated-disorders
#4
María Berdasco, Antonio Gómez, Marcos J Rubio, Jaume Català-Mora, Vicente Zanón-Moreno, Miguel Lopez, Cristina Hernández, Shigeo Yoshida, Takahito Nakama, Keijiro Ishikawa, Tatsuro Ishibashi, Amina M Boubekeur, Lotfi Louhibi, Miguel A Pujana, Sergi Sayols, Fernando Setien, Dolores Corella, Carmen de Torres, Andreu Parareda, Jaume Mora, Ling Zhao, Kang Zhang, Matilde E Lleonart, Javier Alonso, Rafael Simó, Josep M Caminal, Manel Esteller
This work provides a comprehensive CpG methylation landscape of the different layers of the human eye that unveils the gene networks associated with their biological functions and how these are disrupted in common visual disorders. Herein, we firstly determined the role of CpG methylation in the regulation of ocular tissue-specification and described hypermethylation of retinal transcription factors (i.e., PAX6, RAX, SIX6) in a tissue-dependent manner. Second, we have characterized the DNA methylome of visual disorders linked to internal and external environmental factors...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915706/the-role-of-autophagy-in-hepatocellular-carcinoma-friend-or-foe
#5
REVIEW
Lian Liu, Jia-Zhi Liao, Xing-Xing He, Pei-Yuan Li
Autophagy is an evolutionarily conserved lysosome-dependent catabolic process which degrades cell's components in order to recycle substrates to exert optimally and adapt to tough circumstances. It is a critical cellular homeostatic mechanism with stress resistance, immunity, antiaging, and pro-tumor or anti-tumor effects. Among these, the role of autophagy in cancer is the most eye-catching that is not immutable but dynamic and highly complex. Basal autophagy acts as a tumor suppressor by maintaining genomic stability in normal cells...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28910426/optical-coherence-tomography-angiography-features-of-iris-racemose-hemangioma-in-4-cases
#6
Jason L Chien, Kareem Sioufi, Sandor Ferenczy, Emil Anthony T Say, Carol L Shields
Importance: Optical coherence tomography angiography (OCTA) allows visualization of iris racemose hemangioma course and its relation to the normal iris microvasculature. Objective: To describe OCTA features of iris racemose hemangioma. Design, Setting, and Participants: Descriptive, noncomparative case series at a tertiary referral center (Ocular Oncology Service of Wills Eye Hospital). Patients diagnosed with unilateral iris racemose hemangioma were included in the study...
September 14, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28910203/the-t-box-transcription-factor-tbx2-regulates-cell-proliferation-in-the-retinal-pigment-epithelium
#7
Jing Wang, Yin Liu, Zhongyuan Su, Li Pan, Fan Lu, Jia Qu, Ling Hou
PURPOSE: Vertebrate eye development and function critically depend on the regulation of proliferation of retinal pigment epithelium (RPE) cells. Hence, a thorough analysis of the molecular parameters controlling RPE cell proliferation is crucial for our understanding of the physiology of this cell type both in health and in disease. The T-box transcription factor TBX2 is an important cell cycle regulator in development and oncogenesis, but its specific role in RPE cell proliferation is far from clear...
September 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28891704/mucoepidermoid-carcinoma-in-the-skull-of-an-orange-winged-amazon-parrot-amazona-amazonica
#8
Melissa R Nau, James W Carpenter, Denise Lin, Sanjeev Narayanan, Mackenzie Hallman
A 33-year-old female intact orange-winged Amazon parrot (Amazona amazonica) presented for a slowly growing mass over the right eye. A computed tomography scan performed with and without intravenous contrast revealed a heterogeneous mixed soft tissue and mineral-dense mass with a small area of non-contrast-enhancing fluid density located between the orbits at the caudal aspect of the nasal passages, with associated lysis of the right caudal nasal passage and the right frontal bone. Following euthanasia, the mass was found to consist of soft tissue between the right eye and nostril over the right frontal bone...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28889233/adenoid-cystic-carcinoma-of-the-cavernous-sinus-otolaryngological-sequelae-of-therapy-case-report
#9
Edyta Dzięciołowska-Baran, Aleksandra Gawlikowska-Sroka
A 60-year-old woman, otherwise in a good health condition, was first admitted to the hospital with a year-long tingling sensations of the right half of the face, which gradually turned into severe neuralgia corresponding to maxillary (V2) and mandibular (V3) branches of the right trigeminal nerve. MRI scans of the head revealed an unusual hyperplastic or inflammatory changes along the brain base, cavernous sinus extending toward the pterygopalatine fossa, and lateral pterygoid on the right side. Meningioma was suspected and neuralgia was treated conservatively...
September 10, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28887836/a-novel-method-for-quantification-of-beam-s-eye-view-tumor-tracking-performance
#10
Yue-Houng Hu, Marios Myronakis, Joerg Rottmann, Adam Wang, Daniel Morf, Daniel Shedlock, Paul Baturin, Josh Star-Lack, Ross Berbeco
PURPOSE: In-treatment imaging using an electronic portal imaging device (EPID) can be used to confirm patient and tumor positioning. Real-time tumor tracking performance using current digital megavolt (MV) imagers is hindered by poor image quality. Novel EPID designs may help to improve quantum noise response, while also preserving the high spatial resolution of the current clinical detector. Recently investigated EPID design improvements include but are not limited to multi-layer imager (MLI) architecture, thick crystalline and amorphous scintillators, and phosphor pixilation and focusing...
September 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/28868287/intracameral-chemotherapy-melphalan-for-aqueous-seeding-in-retinoblastoma-bicameral-injection-technique-and-related-toxicity-in-a-pilot-case-study
#11
Francis L Munier, Marie-Claire Gaillard, Sarah Decembrini, Massimo Bongiovanni, Maja Beck-Popovic
BACKGROUND: The anterior chamber has been shown by pharmacokinetic studies to represent a sanctuary never achieving a tumoricidal dose with the present administration routes, such as systemic, intra-arterial, or intravitreal injections. METHOD: A novel intracameral chemotherapy technique is described to control aqueous seeding in a pilot unilateral group E retinoblastoma case with primary aqueous seeding. Anterior segment toxicity was carefully monitored. RESULTS: Control of the retinal tumor and vitreous seeding was achieved by intra-arterial and intravitreal chemotherapies...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868286/clinical-and-spectral-domain-optical-coherence-tomography-appearance-of-optic-disc-melanocytoma-a-new-classification-and-differentiation-from-pigmented-choroidal-lesions
#12
Supanut Apinyawasisuk, Tara McCannel, Anthony C Arnold
AIMS: The aim of this paper was to compare the features of both the classic, darkly pigmented and the atypical, more lightly pigmented optic disc melanocytoma with those of pigmented choroidal lesions. METHODS: We analyzed the spectral-domain optical coherence tomography (SD-OCT) features of 9 eyes with optic disc melanocytoma and compared them with those of choroidal melanoma and nevus. RESULTS AND CONCLUSION: We identified 2 categories of SD-OCT findings in optic disc melanocytoma: (a) type 1, the typical, prominent, hyperpigmented lesion with SD-OCT findings of a hyperreflective, disorganized overlying retina and a posterior hyporeflective shadow, and (b) the less common, atypical, minimally pigmented type 2 lesion overlaid by a relatively well-organized retina that lacks a posterior hyporeflective shadow...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868283/uveal-ganglioneuroma-due-to-germline-pten-mutation-cowden-syndrome-presenting-as-unilateral-infantile-glaucoma
#13
Sarah W DeParis, Michele Bloomer, Ying Han, M Reza Vagefi, Joseph T C Shieh, David A Solomon, James Grenert, Alejandra G de Alba Campomanes
PURPOSE: Uveal ganglioneuroma is a rare tumor that usually occurs in association with neurofibromatosis type 1. Here, we present a rare case of a uveal ganglioneuroma leading to a diagnosis of the tumor predisposition condition Cowden syndrome. PROCEDURES: A 5-year-old girl with unilateral refractory glaucoma secondary to diffuse iris and choroidal thickening developed a blind, painful eye. Enucleation was performed, and histopathology revealed infiltration of the entire uveal tract by neoplastic spindle cells containing admixed ganglion cells diagnostic of uveal ganglioneuroma...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868282/growth-of-uveal-melanoma-following-intravitreal-bevacizumab
#14
Jasmine H Francis, Jonathan Kim, Amy Lin, Robert Folberg, Saipriya Iyer, David H Abramson
PURPOSE: Typically treatment of large melanomas (by Collaborative Ocular Melanoma Study criteria) is restricted to enucleation, due to size constraints for plaque brachytherapy. Because primary and metastatic uveal melanoma cells are inhibited by bevacizumab (an anti-vascular endothelial growth factor), this prospective study evaluated the impact of intravitreal bevacizumab on large uveal melanomas that were destined for enucleation. Size reduction by bevacizumab would potentially salvage these eyes by making them eligible for treatment with plaque brachytherapy...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868197/combined-simultaneous-transcranial-and-endoscopic-endonasal-resection-of-sphenoorbital-meningioma-extending-into-the-sphenoid-sinus-pterygopalatine-fossa-and-infratemporal-fossa
#15
Masahide Matsuda, Hiroyoshi Akutsu, Shuho Tanaka, Akira Matsumura
BACKGROUND: Sphenoorbital meningiomas are surgically challenging because of their nature to extend to adjacent structures. Here, we describe a case of recurrent sphenoorbital meningioma extending into the sphenoid sinus, pterygopalatine fossa, and infratemporal fossa, which was resected using combined simultaneous transcranial and endoscopic endonasal approaches. CASE DESCRIPTION: A 62-year-old man who had 15 years earlier undergone partial resection of a left sphenoorbital meningioma presented with a 1-year history of progressive proptosis of the left eye...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28867543/clinical-outcomes-of-hypofractionated-radiation-therapy-for-choroidal-metastases-symptom-palliation-tumor-control-and-survival
#16
Ezra Hahn, Normand Laperriere, Hatem Krema, Juan P Velazquez-Martin, Sohel Somani, John Waldron, Rand Simpson, David Payne, Caroline Chung
PURPOSE: External beam radiation therapy (RT) is an effective palliative treatment for patients with choroidal metastases and is aimed at preserving vision and obtaining local tumor control. Delivery of 30 to 40 Gy in 2-Gy daily fractions is a standard approach at many centers. This study reports the outcomes of a hypofractionated schedule of 20 Gy in 5 fractions in this palliative setting. METHODS AND MATERIALS: We conducted a retrospective review of patients who were treated with RT (20 Gy in 5 fractions) for choroidal metastases between January 1999 and November 2012...
June 29, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28867398/visual-and-ocular-motor-outcomes-in-children-with-posterior-fossa-tumors
#17
Crandall E Peeler, Jane C Edmond, Jeffrey Hollander, Jamie K Alexander, David Zurakowski, Nicole J Ullrich, Peter E Manley, Gena Heidary
PURPOSE: To describe the clinical characteristics and visual and ocular motor outcomes of a large cohort of pediatric patients treated for tumors of the posterior cranial fossa. METHODS: The medical records of all patients with posterior fossa tumors evaluated by the ophthalmology services at two large tertiary care academic hospitals between 2005 and 2011 were reviewed retrospectively. Data abstracted for each study patient included demographic information, presenting signs and symptoms, pathologic diagnosis, and results of the most recent ophthalmology examination...
August 31, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28861359/intraocular-lymphoma
#18
REVIEW
Li-Juan Tang, Chang-Lin Gu, Ping Zhang
Intraocular lymphoma (IOL) is a rare lymphocytic malignancy which contains two main distinct forms. Primary intraocular lymphoma (PIOL) is mainly a sub-type of primary central nervous system lymphoma (PCNSL). Alternatively, IOL can originate from outside the central nervous system (CNS) by metastasizing to the eye. These tumors are known as secondary intraocular lymphoma (SIOL). The IOL can arise in the retina, uvea, vitreous, Bruch's membrane and optic nerve. There are predominantly of B-cell origin; however there are also rare T-cell variants...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28859705/immunoglobulin-g4-sinusitis-in-association-with-aspirin-exacerbated-respiratory-disease
#19
Kirti Johal, Kevin Welch, Anju Peters
BACKGROUND: Immunoglobulin G4 (IgG4) related disease is a systemic inflammatory disease characterized by tumor-like tissue infiltration with IgG4 positive (IgG4+) plasma cells. Aspirin-exacerbated respiratory disease (AERD) is defined as asthma, chronic rhinosinusitis with nasal polyposis, and hypersensitivity to cyclooxygenase-1 inhibitors. OBJECTIVE: We described a case of a non-smoking 61-year-old male with prior NSAID sensitivity who presented with a 1-year history of left eye proptosis associated with chronic nasal symptoms, ultimately identified as concurrent AERD and IgG4 sinusitis...
September 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28859118/tumor-parameters-predict-the-risk-of-side-effects-after-ruthenium-106-plaque-brachytherapy-of-uveal-melanomas
#20
Lisa Tarmann, Werner Wackernagel, Domagoj Ivastinovic, Mona Schneider, Peter Winkler, Gerald Langmann
BACKGROUND: To report on radiation-related side effects and complications after ruthenium-106 plaque brachytherapy of uveal melanomas. METHODS: Medical records of 143 eyes with uveal melanoma, treated by ruthenium-106 brachytherapy between 1997 and 2012 at a single center, were analyzed. We evaluated the occurrence of radiation-related side effects on the anterior and posterior segment of the eye. The influence of patient, tumor and treatment parameters on outcome was analyzed by multivariate time to event analysis considering competing risks...
2017: PloS One
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