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Choroidal biopsy

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https://www.readbyqxmd.com/read/29155757/dissection-of-human-retina-and-rpe-choroid-for-proteomic-analysis
#1
Thiago Cabral, Marcus A Toral, Gabriel Velez, James E DiCarlo, Anuradha M Gore, MaryAnn Mahajan, Stephen H Tsang, Alexander G Bassuk, Vinit B Mahajan
The human retina is composed of the sensory neuroretina and the underlying retinal pigmented epithelium (RPE), which is firmly complexed to the vascular choroid layer. Different regions of the retina are anatomically and molecularly distinct, facilitating unique functions and demonstrating differential susceptibility to disease. Proteomic analysis of each of these regions and layers can provide vital insights into the molecular process of many diseases, including Age-Related Macular Degeneration (AMD), diabetes mellitus, and glaucoma...
November 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29134136/creating-a-full-thickness-choroidal-incision-an-ex-vivo-analysis-of-human-and-porcine-tissue-contraction-dynamics
#2
Stephen A LoBue, Norihiro Yamada, Moon Jeong Choi, Timothy W Olsen
Purpose: We hypothesized that the elastic nature of the choroid leads to tissue contraction following a full-thickness, sharp incision. Furthermore, we sought to quantify, measure, and compare tissue contraction in ex vivo porcine globes and human globes of various ages using predetermined variables. Method: A full-thickness, ex vivo choroidal incision was performed in either pig (n = 97) or human (n = 30) specimens. Variables included trephine diameter (1.5, 2...
November 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29118486/choroidal-melanoma-a-short-review-with-an-indian-perspective
#3
REVIEW
Bikramjit P Pal, Saili Garge, Vikas Khetan
Choroidal melanoma (CM), the most common intraocular tumor in adults, is still a rarity in Asia. Having a high propensity for metastasis with a poor survival, recognizing it early is essential. Although it has typical clinical features, there are instances of simulating lesions. Fine-needle aspiration biopsy can be a valuable tool not only to confirm our clinical suspicion but also aid in prognosticating it. From days of histopathological prognostic markers, we are moving on to genetic markers which are reliably providing insights, helping us in providing a better care for our patients...
September 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/29088955/real-time-ultrasound-guided-external-ventricular-drain-placement-technical-note
#4
James H Manfield, Kenny K H Yu
In the United Kingdom, ultrasound-guided external ventricular drain (EVD) insertion is becoming the standard of care to mitigate the morbidity associated with catheter malposition and multiple passes. Many neurosurgeons routinely use ultrasound to check the preinsertion trajectory, although real-time visualization of ventricular cannulation is preferable since minor deviations can be significant in patients with smaller ventricles, and live visualization further enables the catheter tip to be adjusted away from the choroid plexus...
November 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29077256/screening-with-whole-body-magnetic-resonance-imaging-in-pediatric-subjects-with-li-fraumeni-syndrome-a-single-institution-pilot-study
#5
Allison F O'Neill, Stephan D Voss, Jyothi P Jagannathan, Junne Kamihara, Callie Nibecker, Elena Itriago-Araujo, Serena Masciari, Erin Parker, Mauricio Barreto, Wendy B London, Judy E Garber, Lisa Diller
BACKGROUND: Li-Fraumeni syndrome (LFS) is an autosomal dominant hereditary cancer syndrome associated with germline mutations in the TP53 gene and a high risk of childhood-onset malignancies. Cancer surveillance is challenging in pediatric mutation carriers given the anatomic spectrum of malignancies and young age of onset. Whole-body magnetic resonance imaging (WB-MRI) may provide an acceptable method for early cancer detection. PROCEDURE: We conducted a prospective feasibility pilot study of pediatric subjects (age < 18 years) with LFS to determine return rates for annual WB-MRI scan...
October 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29071523/choroidal-metastasis-from-non-small-cell-lung-cancer-responsive-to-osimertinib-a-case-report-efficacy-of-a-third-generation-epidermal-growth-factor-tyrosine-kinase-inhibitor
#6
Morara Mariachiara, Ruatta Celeste, Foschi Federico, Balducci Nicole, Ciardella Antonio
PURPOSE: To report a case of a choroidal metastasis from a non-small-cell lung cancer (NSCLC) with an epidermal growth factor receptor (EGFR) mutation, which responded to Osimertinib, a third-generation EGFR-tyrosine kinase inhibitor (TKI). BACKGROUND: First- and second-generation EGFR-TKis have been widely used for advanced NSCLC patients; however, acquired resistance to these inhibitors, as T790M mutation, could be present in resistant cases. Third-generation EGFR-TKis have emerged as potential therapeutics to overcome this resistance...
October 25, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29071267/uveal-melanoma-cell-seeding-after-transretinal-tumor-biopsy
#7
Konrad R Koch, Ahmed M Hishmi, Monika Ortmann, Ludwig M Heindl
BACKGROUND/AIMS: To report a case and the histopathology of uveal melanoma cell seeding following transretinal tumor biopsy for a suspected uveal lesion. METHODS: Interventional case report. RESULTS: A 66-year-old male presented with a pigmented perilimbal episcleral lesion overlying an intraocular mass at the pars plana, 3.5 years after transretinal biopsy and ruthenium plaque brachytherapy for a choroidal melanoma at the posterior pole. The patient underwent enucleation of the eye...
September 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28993861/-intraocular-metastases
#8
REVIEW
D Westerwick, F Driever, C H D Le Guin, K W Schmid, K A Metz
Metastatic cancer represents the most common form of intraocular malignancy. Due to its abundant vascular supply the choroid is the most common ocular site for intraocular metastatic disease (approximately 90%). Less than 10% of intraocular metastases are located in the iris and/or ciliary body, whereas the retina and vitreous are rarely affected. Most intraocular metastases are carcinomas; the majority of metastases originate from breast cancer in females and lung cancer in males. However, virtually every primary malignancy has been described to metastasize to intraocular structures...
November 2017: Der Pathologe
https://www.readbyqxmd.com/read/28990538/recent-complications-and-issues-in-tuberculosis-treatment
#9
Mohamad Taleuzzaman, Vinay K Patel
BACKGROUND: Tuberculosis is a one of the major communicable disease which can be preventable and curable. Even though the prevalence of tuberculosis infection is more even though this disease causes major morbidity and mortality. [3] To determine association between tuberculosis (TB) related stigma and delay in seeking a treatment after the onset of symptoms associated with tuberculosis. METHODS: Physicians conducted the interviews using a structured questionnaire...
October 6, 2017: Recent Patents on Anti-infective Drug Discovery
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#10
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28868288/uveal-melanoma-with-histopathologic-intratumoral-heterogeneity-associated-with-gene-expression-profile-discordance
#11
Audra K Miller, Matthew J Benage, David J Wilson, Alison H Skalet
PURPOSE: To report a case of intratumoral gene expression profile discordance in a malignant uveal melanoma, associated with intratumoral heterogeneity based upon histopathologic features. METHODS: The clinical history, fundus findings, imaging and histopathologic features, and DecisionDx-UM gene expression profile results (Castle Biosciences, Inc., Phoenix, AZ, USA) of the tumor were reviewed. RESULTS: A trans-retinal fine-needle aspiration biopsy was performed for a thin, pigmented choroidal tumor in a 33-year-old man...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868277/extramedullary-relapse-of-acute-myelogenous-leukemia-presenting-as-a-large-serous-retinal-detachment
#12
Wesley Green, P Kumar Rao, George J Harocopos
BACKGROUND/AIMS: To describe the rare presentation of a large, unilateral, serous retinal detachment as an extramedullary manifestation of acute myelogenous leukemia (AML) recurrence without bone marrow or central nervous system involvement after more than 1 year of follow-up. METHODS: Case report. RESULTS: A teenage patient with AML, previously treated with multiple courses of systemic chemotherapy, radiation, and bone marrow transplant, presented with acute vision loss...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28868276/uveal-melanoma-regression-after-brachytherapy-relationship-with-chromosome-3-monosomy-status
#13
Sachin M Salvi, Hassan A Aziz, Suhail Dar, Nakul Singh, Brandy Hayden-Loreck, Arun D Singh
AIM: The objective was to evaluate the relationship between the regression rate of ciliary body melanoma and choroidal melanoma after brachytherapy and chromosome 3 monosomy status. METHODS: We conducted a prospective and consecutive case series of patients who underwent biopsy and brachytherapy for ciliary/choroidal melanoma. Tumor biopsy performed at the time of radiation plaque placement was analyzed with fluorescence in situ hybridization to determine the percentage of tumor cells with chromosome 3 monosomy...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28835091/gastric-adenocarcinoma-with-systemic-metastasis-involving-the-intraocular-choroid-and-duodenum
#14
Soon Young Kim, Kee-Taek Jang, Jun Haeng Lee
Gastric cancer with double metastasis to the orbit and duodenum is extremely rare. We report the case of a patient with gastric adenocarcinoma who presented with synchronous orbital and duodenal metastases at the time of initial diagnosis. A 60-year-old man presented with a 1-month history of visual disorder and pain in his right eye. He underwent ophthalmological examinations. The biopsy results suggested intraocular metastatic carcinoma. We conducted a systemic evaluation to identify primary malignancy. Finally, a diagnosis of advanced gastric adenocarcinoma with multi-organ metastasis was made...
May 22, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#15
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28810043/amalric-triangular-syndrome-associated-with-outer-nuclear-layer-infarction
#16
Sean T Garrity, Eric J Holz, David Sarraf
An 85-year-old man presented with temporal headache and bilateral paracentral scotomas. Clinical examination, laboratory testing, and temporal artery biopsy confirmed the diagnosis of giant cell arteritis. Fluorescein angiography illustrated Amalric triangular choroidal infarction of the left eye. Spectral-domain optical coherence tomography of the left eye demonstrated outer nuclear layer abnormalities adjacent to the choroidal infarct. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:668-670.].
August 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28743137/-surgical-methods-in-the-treatment-of-uveal-melanoma
#17
Georgios Blatsios, Gertrud Haas, Claus Zehetner, Nikolaos E Bechrakis
Significant advancements have been made in the last decades in the treatment of uveal melanoma. Radiation therapy can achieve, depending on the method, local tumour control in up to 98% of cases. Surgical modalities have been implemented in the ocular therapy for uveal melanoma either to treat/prevent radiation complications, such as so-called toxic tumour syndrome, or to primarily treat the tumour with or without adjunctive radiotherapy. These include endoresection and transscleral resection for melanomas of the choroid/ciliary body or irido-trabeculo-cyclectomy for melanomas of the iris-ciliary body...
July 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28739193/intraocular-metastasis-comparison-of-clinical-presentation-with-a-known-and-unknown-primary-tumour
#18
R Ramoa, M A Saornil, C García-Alvarez, P Diezhandino, P Alonso-Martínez, E García-Lagarto, M F Muñoz-Moreno, F Lopez-Lara
OBJECTIVE: The purpose of the present study is to review the frequency of intraocular metastases as first presentation of systemic disease, and to identify clinical and tumour characteristics. METHODS: Retrospective study of consecutive cases diagnosed of intraocular metástasis at a referral intraocular tumours unit between 1993 and 2014. General, epidemiological and ophthalmological characteristics were recorded. RESULTS: A total of 21 patients, with a mean age 62...
July 21, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28690979/presentation-treatment-and-prognosis-of-secondary-melanoma-within-the-orbit
#19
Anna M Rose, Sophie Cowen, Channa N Jayasena, David H Verity, Geoffrey E Rose
BACKGROUND: Ocular melanoma is a rare but often deadly malignancy that arises in the uvea, conjunctiva, or orbit. Uveal melanoma is the most common type, with conjunctival melanoma being the second most frequently observed. Melanoma accounts for 5-10% of metastatic or secondary orbital malignancies, but only a minute proportion of primary orbital neoplasia. The aim of this study was to characterize the clinical presentation, treatment, and prognosis in patients presenting with melanoma metastatic to, or secondary within, the orbit...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28678217/choroid-plexus-tuberculoma-diagnosis-management-and-role-of-endoscopy
#20
Nishanth Sadashiva, Bevinahalli N Nandeesh, Dhaval Shukla, Bhagavatula I Devi
Ventricular involvement in central nervous system tuberculosis can be in the form of tuberculous ependymitis, intraventricular tuberculoma, intraventricular tuberculous abscess, choroid plexitis and choroid plexus tuberculoma. Only a few cases of choroid plexus tuberculomas have been described and even more rare is the description of the role of endoscopy in management of intraventricular tuberculomas. We report a 33-year-old patient while on treatment for tubercular meningitis who developed a left side choroid plexus lesion with loculated temporal horn...
July 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
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