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Orbital tumor

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https://www.readbyqxmd.com/read/28822038/translocator-protein-pet-imaging-in-a-preclinical-prostate-cancer-model
#1
Mohammed N Tantawy, H Charles Manning, Todd E Peterson, Daniel C Colvin, John C Gore, Wenfu Lu, Zhenbang Chen, C Chad Quarles
PURPOSE: The identification and targeting of biomarkers specific to prostate cancer (PCa) could improve its detection. Given the high expression of translocator protein (TSPO) in PCa, we investigated the use of [(18)F]VUIIS1008 (a novel TSPO-targeting radioligand) coupled with positron emission tomography (PET) to identify PCa in mice and to characterize their TSPO uptake. PROCEDURES: Pten(pc-/-), Trp53(pc-/-) prostate cancer-bearing mice (n = 9, 4-6 months old) were imaged in a 7T MRI scanner for lesion localization...
August 18, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28820281/isolated-cranio-orbitofacial-neurofibroma-mimicking-vascular-malformation
#2
Harinder S Chahal, Brandon Kuiper, Puneet S Braich, A Tyrone Glover
Isolated neurofibromas in the absence of systemic neurofibromatosis are known as solitary or localized neurofibromas. When present in the orbit, these lesions may appear clinically and radiographically similar to other tumors, complicating diagnosis and management. Key radiographic signs may guide clinicians to the correct diagnosis when the presentation and patient demographic data obfuscate the disease entity. We present a case of a large multi-lobulated neurofibroma misdiagnosed as a lymphangioma. A brief review of these tumors emphasizing key radiographic features is also included...
August 18, 2017: Orbit
https://www.readbyqxmd.com/read/28817996/meningioma-with-tyrosine-rich-crystalloids-a-case-report-and-review-of-the-literature
#3
Erik Reinertsen, Stewart G Neill, Kambiz Nael, Daniel J Brat, Costas G Hadjipanayis
We report a case of fibrous meningioma with tyrosine-rich crystalloid in the frontal lobe of a middle-aged woman. The patient presented with a history of several years of worsening headaches and blurry vision, which progressed to include syncopal episodes and right-sided weakness. Imaging demonstrated a dural-based extra-axial mass arising from the right orbital roof and extending superiorly along the right frontal convexity causing right-to-left midline shift. The patient underwent a craniotomy and operative resection...
August 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28816553/a-rare-case-of-giant-multicystic-solitary-fibrous-tumor-of-the-orbit
#4
Shahid Alam, Varsha Backiavathy, Bipasha Mukherjee, Krishnakumar Subramanian
Solitary fibrous tumor (SFT) is a rare spindle cell tumor of the orbit of mesenchymal origin. Though these tumors are mostly solid, partial or complete cystic changes can rarely occur. Only six such previous cases of cystic fibrous tumor of the orbit have been mentioned in the literature. We report a case of an elderly male who presented with a huge left sided medial orbital mass. Magnetic resonance imaging showed a predominant cystic orbital mass separated by septae and suggested a diagnosis of Hydatid cyst...
August 17, 2017: Orbit
https://www.readbyqxmd.com/read/28815678/cutaneous-iridophoroma-in-a-green-iguana-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-iguana-iguana-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2-%C3%A2
#5
Estelle Rousselet, Carlos H De Mello Souza, James F X Wellehan, Ember D Epperson, Michael J Dark, Heather L Wamsley
An 11-year-old intact male Green iguana (Iguana iguana) was referred for treatment of a probable iridophoroma based on previous cytopathology. A periocular mass was present near the right medial canthus. Computed tomography did not show any sign of metastasis. Clinicopathologic abnormalities included lymphopenia and hyperproteinemia. Cytologic and histologic evaluations of the mass were consistent with iridophoroma. Complete surgical excision of the mass was not possible without removal of the orbit due to local tissue involvement...
August 16, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28812954/mesenchymal-chondrosarcoma-of-the-orbit-a-case-report-with-5%C3%A2-years-of-follow-up
#6
Md Shahid Alam, Nirmala Subramanian, Akruti Sunil Desai, S Krishnakumar
Mesenchymal chondrosarcoma is a rare orbital tumor. Several case reports of this rare tumor have been published in the literature but only 6 cases have documented a follow up of 5 years or more. We report a case of 28 year-old female who presented with left orbital mass. Computed Tomography (CT) revealed a lobulated mass in the superior extraconal space with dense intralesional calcification. Patient underwent complete resection of the mass and histopathology was suggestive of mesenchymal chondrosarcoma. He was given adjuvant radiotherapy and there was no recurrence or metastasis at 5 years of follow-up...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28812938/unilateral-optic-perineuritis-due-to-nonspecific-orbital-inflammation-a-case-report
#7
Pinar Nalcacioglu, Golge Acaroglu
Nonspecific orbital inflammation is an idiopathic chronic tumor-like inflammation process that usually affects the orbital tissues of both eyes. Isolated optic nerve involvement by an idiopathic inflammatory process is a rare finding. Here, we report a patient with unilateral sudden onset severe orbital pain and headache with visual loss to no light perception that could only be attributed to perineuritis. Radiological findings enabled making the correct diagnosis. Various relevant diagnoses are also discussed...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28808799/transorbital-endoscopic-approach-for-exposure-of-the-sylvian-fissure-middle-cerebral-artery-and-crural-cistern-an-anatomical-study
#8
João Paulo Almeida, Armando S Ruiz-Treviño, Sathwik R Shetty, Sacit B Omay, Vijay K Anand, Theodore H Schwartz
BACKGROUND: The availability of minimal access instrumentation and endoscopic visualization has revolutionized the field of minimally invasive skull base surgery. The transorbital endoscopic approach using an eyelid incision has been proposed as a new minimally invasive technique for the treatment of skull base pathology, mostly extradural tumors. Our study aims to evaluate the anatomical aspects and potential role of the transorbital endoscopic approach for exposure of the sylvian fissure, middle cerebral artery and crural cistern...
August 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28806257/orbital-hemangiopericytoma-in-68ga-prostate-specific-membrane-antigen-hbed-cc-pet-ct
#9
Jochen Hammes, Carsten Kobe, Ute Hilgenberg, Wolfgang E Lieb, Alexander Drzezga
A 76-year-old man with biochemical relapse of prostate cancer underwent Ga-prostate-specific membrane antigen PET/CT. Besides a local lymph node metastasis, a nodular structure inside the left orbit caudal to the optic nerve showed increased uptake. A metastasis in this location is unlikely. The subsequently performed MRI showed the structure being T1 hypointense, T2 indifferent, and strongly gadolinium contrast agent enhancing. Histopathologic examination after surgical removal identified the tumor as hemangiopericytoma, which rarely occurs in the orbit...
August 12, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28799265/surgical-excision-of-a-feline-orbital-lacrimal-gland-adenocarcinoma-with-adjunctive-cryotherapy-and-carboplatin-impregnated-bead-implantation
#10
Daniel M Dorbandt, Alycen P Lundberg, Patrick J Roady, Jane A Huey, Heidi Phillips, Ralph E Hamor
The purpose of this report was to discuss the diagnosis, treatment, and outcome of a cat with an orbital lacrimal gland adenocarcinoma. A 14.5-year-old spayed female domestic shorthair cat was evaluated for a firm swelling at the left dorsotemporal orbital rim. The orbital mass was excised with preservation of the globe, and adjunctive cryotherapy was performed. A definitive diagnosis of lacrimal gland adenocarcinoma was obtained after histopathologic evaluation and histochemical staining with periodic acid-Schiff and mucicarmine...
August 10, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28761971/-tufted-angiomas-of-the-head-and-neck-german-version
#11
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...
July 31, 2017: HNO
https://www.readbyqxmd.com/read/28761280/recurrent-keratocystic-odontogenic-tumor-of-right-maxillary-sinus-involving-the-right-infraorbital-rim
#12
Karthikeyan Maruthamuthu, G Vasupradha, Janardhanam Dineshshankar, Abishek Rajaram Balaji
Keratocystic odontogenic tumor (KCOT) is a benign odontogenic tumor with an aggressive behavior and high recurrence rate. The most common site of predilection is the posterior mandible. In contrast, KCOTs occurring in the maxillary region are relatively rare. However, the maxillary involvement poses a greater and increased threat, due to proximity to vital structures such as maxillary sinus, orbital floor, and infratemporal fossa. This report presents such a case of KCOT involving the maxillary sinus eroding the floor of the orbit and provides an account of the factors that need to be considered during management...
January 2017: National Journal of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28752368/long-term-follow-up-of-conjunctival-melanoma-treated-with-topical-interferon-alpha-2b-eye-drops-as-adjunctive-therapy-following-surgical-resection
#13
Iku Kikuchi, Satoru Kase, Kan Ishijima, Susumu Ishida
PURPOSE: The purpose of this study was to report the clinical outcomes of patients with conjunctival melanoma treated with interferon (IFN) α-2b eye drops following local tumor resection. METHODS: Five eyes of five patients were enrolled in this study. All patients underwent the local resection of tumors, and topical IFNα-2b eye drops were subsequently administered 4 times/day until the complete disappearance of the pigmented lesions determined by slit-lamp examination...
July 27, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28749194/results-of-preoperative-chemoradiotherapy-for-patients-with-advanced-cancer-of-the-nasal-cavity-and-paranasal-sinuses
#14
Erik Fernström, Jan Nyman, Eva Hammerlid, Erik Holmberg, Hedda Haugen-Cange, Karin Petruson, Edvard Abel, Thomas Björk-Eriksson
OBJECTIVES: Curative treatment of nasal cavity and paranasal sinus cancer is challenging due to the proximity to critical anatomical structures. The purpose of this study was to analyze the impact of trimodality therapy with preoperative chemotherapy and reduced-dose radiotherapy followed by organ-preserving surgery for treating patients with nasal cavity and paranasal sinus cancer. METHODS: This retrospective study included all 156 patients diagnosed with sinonasal cancer in western Sweden between 1986 and 2009...
July 27, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28746252/primary-neuroendocrine-tumor-of-the-orbit-presenting-with-acute-proptosis
#15
Preeti J Thyparampil, Michael T Yen, Sadhna Dhingra, Debra J Shetlar, Neda Zarrin-Khameh, Benjamin L Musher
Primary neuroendocrine tumors of the orbit are exceedingly rare and typically present with gradual, progressive exophthalmos. In this report, an otherwise healthy 64-year-old woman undergoes resection of a well-differentiated neuroendocrine tumor after presenting with acute proptosis. An extensive clinical and radiographic evaluation reveals no other evidence of disease, establishing the diagnosis of a primary neuroendocrine tumor. The case presentation is followed by a brief review of the classification, presentation, and evaluation of orbital neuroendocrine tumors...
July 25, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28739401/a-review-of-nasal-paranasal-and-skull-base-tumors-invading-the-orbit
#16
REVIEW
Morten Jørgensen, Steffen Heegaard
Tumors that invade the orbit are uncommon. The majority are meningiomas arising from the sphenoid ridge (66 %). Others are bone and cartilage tumors arising from the surrounding bones surrounding the orbit, pituitary adenomas, and epithelial tumors arising from the paranasal sinuses and nasal cavity. Meningiomas occur more often in females, whereas epithelial tumors have a predilection for males. Meningiomas and epithelial tumors typically present in the sixth decade of life, whereas bone tumors tend to affect individuals in their third decade of life...
July 21, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28729769/recurrence-and-cancerization-of-ameloblastoma-multivariate-analysis-of-87-recurrent-craniofacial-ameloblastoma-to-assess-risk-factors-associated-with-early-recurrence-and-secondary-ameloblastic-carcinoma
#17
Rong Yang, Zheqi Liu, Sandhya Gokavarapu, Canbang Peng, Tong Ji, Wei Cao
OBJECTIVE: The recurrence and progression of ameloblastoma are unpredictable. Therefore, we examined the influence of clinical factors on recurrence time and analyzed the clinical factors associated with early recurrence and cancerization. We then developed a staging system to predict early recurrence and cancerization. METHODS: All of the primary craniofacial ameloblastoma patients treated in Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine were recorded...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28713744/access-osteotomy-in-the-maxillofacial-skeleton
#18
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
#19
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...
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
#20
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
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