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https://www.readbyqxmd.com/read/28713744/access-osteotomy-in-the-maxillofacial-skeleton
#1
REVIEW
K Kamalpathey, Maj Gen N K Sahoo, Col P K Chattopadhyay, Maj Yuvraj Issar
Surgical accesses for the facial skeleton are based on the concept of modular osteotomies. Various techniques and combination of osteotomies facilitate access to the most inaccessible tumors of craniomaxillofacial region. Most appropriate surgical access is determined by considering size, location, extension of the tumor, and experience of the surgical team. These are primarily used for tumors in the nasopharynx or the skull base. The aim of this paper is to review surgical accesses that aid in removal of inaccessible tumors of craniomaxillofacial region with series of cases operated in the Department of Oral and Maxillofacial Surgery, Armed Forces Medical College, Pune, India, between July 2008 and June 2010...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28704744/a-primary-intraosseous-cystic-meningioma-case-report
#2
Riccardo Caruso, Giuseppina Fini, Alessandro Pesce, Venceslao Wierzbicki, Luigi Marrocco, Emanuele Piccione, Paola Pasquini
INTRODUCTION: This is a very rare case of intraosseous cystic meningioma. There have been no reports of similar cases in the last 30 years. PRESENTATION OF CASE: A 62-year-old man, suffering from a swelling of the lateral wall of the left orbit was admitted to our hospital. MRI and CT scan showed a large intradiploic lesion involving the lateral wall of the orbit and the greater wing of the sphenoid. The lesion was cystic with a mural nodule. We operated the patient and removed completely the mural nodule and the fibrous wall of cyst...
June 29, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28700399/ellipsoid-smooth-muscle-tumor-of-the-lower-eyelid-an-exploration-of-its-possible-origin
#3
Frederick A Jakobiec, Fouad R Zakka, Branko Bojovic
Ocular adnexal smooth muscle masses/neoplasms are extremely rare. Such lesions are comparatively more common in the conjunctiva than in the orbit and are most unusual in the eyelid. A 58-year-old woman slowly developed over 4 months a firm, movable sausage-shaped lesion in the deep lateral half of the right lower eyelid. The lesion ran parallel to and above the orbital rim. At surgery, the lesion was located between the orbicularis muscle and the inferior orbital septum. The term ellipsoid is used descriptively and does not imply any particular biologic behavior...
July 10, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28700257/orbital-basal-cell-adenoma-a-case-report
#4
Mansoreh Jamshidian-Tehrani, Abdulrahim Amini, Fahimeh Asadi Amoli, Mohsen B Kashkouli, Navid Abdi, Masoud Aghsaei Fard
Basal cell adenomas are uncommon benign epithelial tumors of the salivary gland. Orbital basal cell adenoma of the orbit has not been described before. The authors report an unusual case of basal cell adenoma that presented in the orbit. Immunohistochemical findings for the tumor are also described.
July 12, 2017: Orbit
https://www.readbyqxmd.com/read/28698688/retro-orbital-and-disseminated-b-cell-lymphoma-in-a-yellow-collared-macaw-primolius-auricollis
#5
Kim Le, Hugues Beaufrère, Emily Brouwer, S Karlyn Bland, Sarah Wills, Shawn MacKenzie, Heather Chalmers, Chantale Pinard, R Darren Wood, Josepha DeLay, Dale A Smith
A yellow-collared macaw was presented with unilateral left exophthalmia. The complete blood cell count and biochemistry revealed a heterophilic leukocytosis and elevation in liver parameters, respectively. A computed tomography scan showed a contrast-enhancing retrobulbar mass and hepatomegaly. Cytology of the liver was consistent with a round cell tumor, most likely lymphoma. The bird died after 2 months of palliative care. Postmortem examination confirmed a retro-orbital and disseminated B-cell lymphoma.
July 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28691463/use-of-the-orbital-fat-pad-in-eyelid-reconstruction
#6
A Baj, O D Orto, M Romano, G A Beltramini, F J Silvestre, A B Giannì
Eyelid reconstruction, though challenging, can produce a functional, esthetically pleasing lid. This should preferably be accomplished with a one-stage procedure, using robust, well-vascularized tissues similar to those being replaced, with minimal associated donor morbidity. According to the experience with Bichat pedicled flap in oral reconstruction, the authors propose the use of pedicle infraorbital fat pad for repair of conjunctival defect. Seven patients underwent eyelid reconstruction of full-thickness oncological or post-traumatic defects...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28690979/presentation-treatment-and-prognosis-of-secondary-melanoma-within-the-orbit
#7
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/28685074/use-of-the-bioactive-resorbable-plate-system-for-zygoma-and-zygomatic-arch-replacement-and-fixation-with-modified-crockett-s-method-for-maxillectomy-a-technical-note
#8
Shintaro Sukegawa, Takahiro Kanno, Akane Shibata, Kenichi Matsumoto, Yuka Sukegawa-Takahashi, Kyousuke Sakaida, Yoshihiko Furuki
As a surgical approach targeting the pterygopalatine fossa following maxillary cancer due to tumor invasion, Crockett's method is conventional and useful. However, if the tumor is confined to the area between the maxilla and pterygopalatine fossa, it is not necessary to include the zygomatico-orbital in the access osteotomy, and the orbital floor may be preserved. Depending on the range of tumor invasion, the current study reports a more minimally invasive, modified Crockett's surgery that may be considered, which includes resection with modified osteotomy lines and repositioning with fixation of the zygoma and zygomatic arch following maxillary cancer ablation...
July 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28681210/sebaceous-carcinoma-a-review-of-the-scientific-literature
#9
REVIEW
Thomas Knackstedt, Faramarz H Samie
Sebaceous carcinoma is a rare and potentially aggressive cutaneous malignancy. Commonly reported in the periocular area and the head and neck region, sebaceous carcinoma can arise from any sebaceous gland in the skin. The clinical presentation may be nonspecific, and a biopsy is important to establish a diagnosis and to differentiate from mimickers including benign sebaceous neoplasms, other adnexal tumors, and basal cell carcinoma. A diagnosis of Muir Torre syndrome should be considered in patients presenting with a sebaceous neoplasm...
August 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28667388/tufted-angiomas-of%C3%A2-the%C3%A2-head%C3%A2-and%C3%A2-neck
#10
S M Häußler, F C Uecker, S Knopke, F Roßner, H Olze, A Böttcher
BACKGROUND: Tufted angiomas (TAs) are uncommon benign vascular tumors mostly located cutaneously or subcutaneously in the skin of the neck and upper trunk, which appear during childhood and grow slowly. TAs are a variant of lobular capillary hemangiomas. This is the first study to provide an overview of the current literature in combination with the authors' own clinical experience on this rare entity in the head and neck area with non-dermatological localization. METHODS: A selective Medline and Google Scholar database search was performed...
June 30, 2017: HNO
https://www.readbyqxmd.com/read/28664013/erdheim-chester-disease-involving-the-central-nervous-system-with-the-unique-appearance-of-a-coated-vertebral-artery
#11
Hime Suzuki, Masahiko Wanibuchi, Katsuya Komatsu, Yukinori Akiyama, Takeshi Mikami, Shintaro Sugita, Tadashi Hasegawa, Mitsunori Kaya, Kohichi Takada, Nobuhiro Mikuni
Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis. It is characterized by multiple xanthogranulomatous masses throughout the body, predominantly in the tibia. One of the characteristic radiological findings of the lesions associated with ECD is a "coated artery," which is often observed in the aorta. Although approximately one-fourth of ECD cases involve the central nervous system (CNS), an intracranial-coated artery has only been reported in four cases. We report a case of ECD that involves the CNS and has the unique appearance of a coated vertebral artery (VA)...
October 2016: NMC Case Rep J
https://www.readbyqxmd.com/read/28664009/orbital-abducens-nerve-schwannoma-a-case-report-and-review-of-the-literature
#12
Yu Iida, Katsumi Sakata, Natsuki Kobayashi, Junya Tatezuki, Hiroshi Manaka, Takashi Kawasaki
Intraorbital schwannoma is a rare tumor which accounts for about 1-2% of all neoplasms of the orbit. Orbital schwannomas most commonly arise from the sensory branches of the trigeminal nerve. On the other hand, intraorbital abducens nerve schwannomas are extremely rare, with a search of the English literature identifying only four cases of intraorbital abducens nerve schwannoma. This is the 5th reported case of an orbital schwannoma arising from the terminal branch of the abducens nerve to the lateral rectus muscle...
October 2016: NMC Case Rep J
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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