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Orbital tumors

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https://www.readbyqxmd.com/read/28643722/endogenous-endophthalmitis-caused-by-cryptococcus-neoformans-var-gattii-mimicking-choroidal-tumor-from-positron-emission-tomography-computed-tomography-to-histopathology
#1
Chun-Ju Lin, Wen-Lu Chen, Jane-Ming Lin, Peng-Tai Tien, Yi-Yu Tsai
A 60-year-old immunocompetent female with pneumonia history about 10 years ago suffered from blurred vision overall survival for 3 weeks. Common cold with headache and unintentional body weight loss was also noted recently. Choroidal detachment simulating choroidal tumor was observed in the temporal quadrant. The 18F-fluoro-2-deoxyglucose (FDG) positron-emission tomography/computed tomography (CT) scan showed focal, mild to moderate FDG uptake in the left lateral orbit, and an enhanced lesion was seen on the recent CT scan...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28626853/conjunctival-melanoma-in-southwestern-nigeria-a-case-series-and-review-of-literature
#2
Oluyemi Fasina, Olayiwola A Oluwasola
PURPOSE: Conjunctival melanoma is a rare tumor worldwide and is extremely rare among black population. This study aims to report the demographics, clinical presentation, treatment, and outcome of patients seen in an indigenous black population in Southwestern Nigeria. METHODS: All patients histologically diagnosed with conjunctival melanoma and managed in the facility were reviewed. Their demographics, clinical presentation, treatment received, outcome of treatment, and histopathological features were analyzed...
June 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28626823/a-survey-of-ophthalmologists-and-gynecologists-regarding-termination-of-pregnancy-and-choice-of-delivery-mode-in-the-presence-of-eye-diseases
#3
Seyed-Farzad Mohammadi, Mojgan Letafat-Nejad, Elham Ashrafi, Hanieh Delshad-Aghdam
PURPOSE: To evaluate and compare the attitudes of ophthalmologists and gynecologists in suggesting appropriate approach to pregnancy in different ocular conditions. METHODS: Specialty-specific questionnaires on delivery mode and abortion indications for ophthalmic patients (refractive, vascular, oncologic, retinal, glaucoma, postoperation, posttrauma, and infectious) were designed and distributed among physician staff of Farabi Eye Hospital and Yas Women Hospital in Tehran...
June 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28626414/an-unusual-differential-diagnosis-of-orbital-cavernous-hemangioma-ancient-schwannoma
#4
Sara Filipa Teixeira Ribeiro, Tatiana Queirós, José M Amorim, Ana M Ferreira, Marco Sales-Sanz
Schwannomas are rare lesions of the orbit that can be confused with cavernous hemangioma on imaging studies. We report the case of an 84-year-old woman with a 9-year history of a tumoral lesion in the inferolateral left orbit. The imaging studies did not reveal specific characteristics, only bone remodeling due to the long evolution of the tumor. The patient underwent complete excision of the tumor by anterior orbitotomy via the inferior conjunctival fornix. The histopathological examination revealed an ancient schwannoma, a variant of schwannoma with uncommon histological features...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28613306/size-tunable-microvortex-capture-of-rare-cells
#5
Reem Khojah, Ryan Stoutamore, Dino Di Carlo
Inertial separation of particles and cells based on their size has advanced significantly over the last decade. However, size-based inertial separation methods require precise tuning of microfluidic device geometries to adjust the separation size of particles or cells. Here, we show a passive capture method that targets a wide size range of cells by controlling the flow conditions in a single device geometry. This multimodal capture device is designed to generate laminar vortices in lateral cavities that branch from long rectangular channels...
June 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28612670/optimal-approach-for-complete-liver-tumor-ablation-using-radiofrequency-ablation-a-simulation-study
#6
Sogol Givehchi, Yin How Wong, Chai Hong Yeong, Basri Johan Jeet Abdullah
PURPOSE: To investigate the effect of radiofrequency ablation (RFA) electrode trajectory on complete tumor ablation using computational simulation. MATERIAL AND METHODS: The RFA of a spherical tumor of 2.0 cm diameter along with 0.5 cm clinical safety margin was simulated using Finite Element Analysis software. A total of 86 points inside one-eighth of the tumor volume along the axial, sagittal and coronal planes were selected as the target sites for electrode-tip placement...
June 14, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28611005/bottom-up-synthesis-of-ws2-nanosheets-with-synchronous-surface-modification-for-imaging-guided-tumor-regression
#7
Shige Wang, Jiulong Zhao, Hailun Yang, Chenyao Wu, Fei Hu, Haizhou Chang, Guixiang Li, Dan Ma, Duowu Zou, Mingxian Huang
Two-dimensional transition metal dichalcogenides (TMDs) have been receiving great attention as NIR photothermal transducing agent in tumor photothermal therapy. Keeping in mind the low efficiency of the conventional top-down exfoliation method to produce 2D TMDs and the complexity of their surface modifications, we herein proposed a bottom-up strategy for the one-pot and controlled synthesis of surface polyvinyl pyrrolidone (PVP) modified WS2 nanosheets, by hydrothermally treating the mixture solution of tetrathiotungstate and PVP...
June 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28601297/outcomes-of-multimodal-management-for-sinonasal-squamous-cell-carcinoma
#8
Arnaud Paré, Pierre Blanchard, Silvia Rosellini, Anne Aupérin, Philippe Gorphe, Odile Casiraghi, Stéphane Temam, François Bidault, Philippe Page, Frédéric Kolb, François Janot, Antoine Moya Plana
BACKGROUND: Poor prognosis of sinonasal cancers (SNC) is usually due to the non-specific symptoms leading to late diagnosis with locally advanced disease. However, previous prognostic studies were often based on heterogeneous cohorts because of the scarcity of SNC. With squamous cell carcinoma being the main histological subgroup, the study aimed to perform a prognostic analysis on sinonasal squamous cell carcinoma (SNSCC) particularly, and to evaluate the oncological results of a multimodal therapy...
May 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28591289/oncocytoma-of-the-lacrimal-gland-a-case-report
#9
Eduardo Muniz Fenelon, Ivelise Theresa Balby, Nathália Teles das Neves, Florêncio Figueiredo, Eliza Carla Barros Duarte, Patrick Frensel Tzelikis
Here we describe a rare case of a benign tumor in the lacrimal gland of a healthy 4-year-old girl. Mild proptosis was the only abnormality observed on clinical examination. Magnetic resonance imaging of the right orbit revealed an oval, solid, well-circumscribed, homogeneous mass extending from the lacrimal gland and measuring 2.5 × 2.3 × 1.7 cm without any evidence of invasion into adjacent bones. The lesion was surgically excised and histological analyses defined the diagnosis of oncocytoma of the lacrimal gland...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28587410/a-case-report-of-the-orbit-ocular-association-and-the-lung-in-granulomatosis-with-polyangiitis-a-diagnostic-challenge
#10
Cheng-Wei Lu, Xiu-Fen Liu, Ying Luan, Cheng-Bo Lu, Dan-Dan Zhou, Li-Min Guo, Ya-Bin Sun, Sheng-Nan Chen, Yun-Long Wu, Ji-Long Hao
Granulomatosis with polyangiitis (GPA) is a systemic form of vasculitis that involves small to medium sized vessels and is associated with high morbidity and mortality. GPA presents a continuous and difficult clinical diagnostic concern, due to the rarity of the disease and the diversity of the manifestations. This case report discusses the unusual symptoms presented by a particular patient, discusses these manifestations and explains how the final diagnosis was identified as GPA. A 40-year old Chinese woman was initially referred to the present institution for a progressive worsening pain, redness and gradual decrease in visual acuity in the eyes over the past 7-year period...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28583236/complete-response-of-skull-base-inverted-papilloma-to-chemotherapy-case-report
#11
Edward C Kuan, John W Frederick, Miguel F Palma Diaz, Dean W Lim, Jeffrey D Suh
BACKGROUND: Inverted papilloma (IP) is the most common benign sinonasal neoplasm. Endoscopic techniques, improved understanding of pathophysiology, and novel surgical approaches have allowed rhinologists to treat IPs more effectively, with surgery being the mainstay of therapy. Frontal sinus IP poses a challenge for surgical therapy due to complex anatomy and potentially difficult surgical access. OBJECTIVES: We reported a unique case of a massive frontal sinus IP that presented with intracranial and orbital extension, with near resolution after chemotherapy...
June 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28583233/myxofibrosarcoma-of-the-maxillary-sinus
#12
Anni Wong, Richard Chan Woo Park, Neena M Mirani, Jean Anderson Eloy
BACKGROUND: Myxofibrosarcoma (MFS) is a common sarcoma in the extremities of older individuals but is extremely uncommon in the head and neck region. Diagnosis may be challenging but is critical to the management of the patient. We discuss the radiographic and histopathologic characteristics of this destructive tumor. The distinguishing features of MFS and its differential diagnosis are reviewed to familiarize the managing otolaryngologist with this rare entity. METHODS: A 61-year-old woman presents with a 6-week history of severe left facial pain and left eye pain...
June 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28582370/isolated-neurofibroma-of-the-orbit-case-report-and-literature-review
#13
Puneet S Braich, Jared C Donaldson, Gurtej S Bajaj, William H Bearden
PURPOSE: To summarize the clinical, radiographic, and intraoperative characteristics of isolated neurofibromas of the orbit (INFO) in the literature and report a case of INFO. METHODS: Case report and a systematic review of the literature. RESULTS: A total of 45 patients were identified from 18 previous studies. There was no sex predilection and mean ages were between 32.3 and 40.0 years with a standard deviation of 9.8 to 19.5 years, median age was 32 to 38 years with a range of 1...
June 2, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28578363/etiology-of-optic-atrophy-a-prospective-observational-study-from-saudi-arabia
#14
Joyce N Mbekeani, Maaly Abdel Fattah, David M Poulsen, Selwa Al Hazzaa, M Anas Dababo, Abdelmoneim Eldali, Manzoor Ahmed
BACKGROUND: Optic atrophy (OA) represents permanent retinal ganglion cell loss warranting study to establish etiology. OBJECTIVES: To describe neurogenic causes of OA. DESIGN: Prospective, observational. SETTING: Tertiary care center, Riyadh, Saudi Arabia. PATIENTS AND METHODS: We included consecutive patients of all ages with OA caused by lesions affecting the visual pathways who were referred over a 9-month period (November 2013 to July 2014)...
May 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28577031/natural-history-of-optic-pathway-gliomas-in-a-cohort-of-unselected-patients-affected-by-neurofibromatosis-1
#15
Eva Trevisson, Matteo Cassina, Enrico Opocher, Virginia Vicenzi, Marta Lucchetta, Raffaele Parrozzani, Giacomo Miglionico, Rodica Mardari, Elisabetta Viscardi, Edoardo Midena, Maurizio Clementi
Optic pathway glioma (OPG) represents the most common central nervous system tumor in children with Neurofibromatosis type-1 (NF1). Although overall survival is usually good, no clear prognostic factors have been identified so far. We assessed the natural history of OPG in a cohort of unselected patients affected by NF1. We retrospectively evaluated 414 consecutive patients affected by NF1 and referred to our NF1 clinic before age 6. Average follow-up was 11.9 years: 52 out of 414 patients had OPG with a total cumulative incidence of 15...
June 2, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28576480/an-orbital-perivascular-epithelioid-cell-tumor-in-a-7-year-old-boy-case-report-and-review-of-the-literature
#16
Ali Varan, Turan Bayhan, Hayyam Kiratli, Ece Özoğul, Kemal Kösemehmetoğlu, Elif Bulut, Canan Akyüz
No abstract text is available yet for this article.
May 30, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28570006/primary-conjunctival-myxoma-case-series-and-review-of-the-literature
#17
Dolores Ríos Y Valles-Valles, Ivette Hernández-Ayuso, Héctor A Rodríguez-Martínez, Armando Medina-Cruz, Guillermo Salcedo-Casillas, Abelardo A Rodríguez-Reyes
AIMS: Myxomas are benign soft tissue tumors resembling primitive mesenchyme. They rarely involve ocular structures and have been recognized in conjunctiva, eyelids, cornea and orbit. The purpose of this study is to describe the clinicopathological features of 7 patients with primary conjunctival myxoma seen at Dr. Luis Sánchez Bulnes Hospital an ophthalmologic referral center in Mexico City. MATERIALS AND METHODS: We reviewed the clinical, histochemical and immunohistochemical studies of patients with documented myxoma of the conjunctiva diagnosed in our hospital...
June 1, 2017: Histopathology
https://www.readbyqxmd.com/read/28566981/isolated-eyelid-schwannoma-a-rare-differential-diagnosis-of-lid-tumor
#18
Nabila H Morsi, Osama Samir AlMansouri, Ebrahim Mohammed AlMansour
Primary Schwannomas of the eyelid are extremely uncommon. It accounts for one percent of orbital tumors. We present a case of isolated eyelid Schwannoma in the lateral canthus of the left eye with no systemic diseases associated. Surgical excisional biopsy was done. In two years follow up, no recurrence or malignant conversion was detected.
April 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28561956/outcomes-for-olfactory-neuroblastoma-treated-with-induction-chemotherapy
#19
Shirley Y Su, Diana Bell, Renata Ferrarotto, Jack Phan, Dianna Roberts, Michael E Kupferman, Steven J Frank, C Dave Fuller, G Brandon Gunn, Merrill S Kies, Bonnie S Glisson, Ehab Y Hanna
BACKGROUND: Oncologic outcomes for induction chemotherapy and its role in patients with advanced olfactory neuroblastoma (ONB) remain unclear. METHODS: A retrospective review of 15 consecutive patients with extensive local invasion and/or nodal disease treated with induction chemotherapy with curative intent followed by definitive local therapy. RESULTS: The majority of patients were treated with cisplatin and etoposide. The response to chemotherapy was 68% (10/15)...
May 31, 2017: Head & Neck
https://www.readbyqxmd.com/read/28558180/neural-tumors-of-the-orbit-what-is-new
#20
Mark P Ghassibi, Jan P Ulloa-Padilla, Sander R Dubovy
Primary neural tumors of the orbit account for approximately 10% of all orbital tumors. Different tumor entities include meningiomas, optic nerve gliomas, neurofibromas, schwannomas, malignant peripheral nerve sheath tumors, and granular cell tumors. This review summarizes current concepts regarding epidemiology, clinical presentation, diagnosis, pathology, immunohistochemistry, prognosis, and treatment for neural tumors of the orbit based on the available literature.
May 2017: Asia-Pacific Journal of Ophthalmology
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