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https://www.readbyqxmd.com/read/30116846/-tumors-of-the-paranasal-sinus-invading-the-orbit
#1
REVIEW
M Herzog
Invasion of the orbit by tumors of the paranasal sinus represents an advanced state of disease. Prognosis has hardly improved in recent decades, despite multimodal therapeutic approaches. Complete resection of the tumor still remains the most promising therapy. Orbital exenteration implies a dramatic event for the patient's psyche and quality of life. If the eye that would have to be exenterated is the only one remaining with sufficient vision, exenteration should be abandoned in consensus with the patient...
August 16, 2018: HNO
https://www.readbyqxmd.com/read/30114927/dce-mr-imaging-of-orbital-lesions-diagnostic-performance-of-the-tumor-flow-residence-time-%C3%AF-calculated-by-a-multi-compartmental-pharmacokinetic-tumor-model-based-on-individual-factors
#2
Katharina Erb-Eigner, Patrick Asbach, Sa-Ra Ro, Matthias Haas, Eckart Bertelmann, Hubertus Pietsch, Carsten Schwenke, Matthias Taupitz, Timm Denecke, Bernd Hamm, Rüdiger Lawaczeck
Background Differentiating benign from malignant orbital lesions by imaging and clinical presentation can be challenging. Purpose To differentiate benign from malignant orbital masses using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) based on tumor flow residence time τ calculated with the aid of a pharmacokinetic tumor model. Material and Methods Sixty patients with orbital masses were investigated by 3-T MRI including dynamic sequences. The signal intensity-time curve after i.v. contrast medium administration within lesions was approximated by Gd-concentration profiles on the basis of model calculations where the tumor is embedded in a whole-body kinetic model...
August 16, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/30112271/lung-adenocarcinoma-presenting-with-an-orbital-metastasis
#3
Noni Novisari Soeroso, Setia Putra Tarigan, Wina Saragih, Novie Diana Sari, Netty Lubis, Humairah Lubis
Orbital metastasis of lung adenocarcinoma is very rare. The incidence is only found to be approximately 7%-12% of lung cancer cases. The lack of knowledge about orbital metastasis results in misdiagnosis between malignant or benign lesion. This was a case of a 39-year-old woman complaining about a protruding left eye and a blind pain in the left eye characterized by hyperemesis eyeball. A CT scan of the orbital showed a soft tissue tumor in the fronto-naso-superomedial area of the left orbital with suspicion of infiltration of the medial rectus muscle, left bulbus oculi, lamina papyracea, and left frontal sinus wall which causes proptosis and soft tissue tumor in the left temporal region with suspicion of infiltration in the left sphenoid wing with an impression of metastasis...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/30109003/structure-and-properties-of-dota-chelated-radiopharmaceuticals-within-the-225-ac-decay-pathway
#4
Artem R Khabibullin, Aleksandra Karolak, Mikalai M Budzevich, Mark L McLaughlin, David L Morse, Lilia M Woods
The successful delivery of toxic cargo directly to tumor cells is of primary importance in targeted (α) particle therapy. Complexes of radioactive atoms with the 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) chelating agent are considered as effective materials for such delivery processes. The DOTA chelator displays high affinity to radioactive metal isotopes and retains this capability after conjugation to tumor targeting moieties. Although the α-decay chains are well defined for many isotopes, the stability of chelations during the decay process and the impact of released energy on their structures remain unknown...
July 1, 2018: MedChemComm
https://www.readbyqxmd.com/read/30105793/combined-high-dose-intra-arterial-and-intrathecal-chemotherapy-for-the-treatment-of-a-case-of-extraocular-retinoblastoma
#5
Anabel Rodriguez, Santiago Zugbi, Flavio Requejo, Alejandra Deu, Claudia Sampor, Mariana Sgroi, Andrea Bosaleh, Adriana Fandiño, Paula Schaiquevich, Guillermo Chantada
Patients with retinoblastoma and central nervous system (CNS) involvement are rarely curable with available treatments. We designed a high-dose intra-arterial regimen targeting the ophthalmic artery and chiasm combined with intrathecal chemotherapy to treat a 4-year-old patient with retinoblastoma metastasized to the CNS. After three cycles of this regimen, including carboplatin, melphalan, and intrathecal topotecan, a partial response of the orbital tumor mass and chiasmatic lesion, and complete response in the cerebrospinal fluid and bone marrow were achieved...
August 13, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/30105145/diploic-mature-teratoma-originating-from-the-orbital-roof-an-extremely-rare-case-report
#6
Sunday Nkwerem, Tetsuyoshi Horiuchi, Akihiro Nishikawa, Kiyoshi Ito, Kazuhiro Hongo, Samuel Ohaegbulam
Background: Orbital mature teratoma is a rare congenital tumor. Case Description: A 37-year-old woman presented with ophthalmalgia predated by years of progressive incongruous right eye position, diplopia, and restricted extraocular movement. Neuroimages revealed a right orbital mass originating from the orbital roof. After resection, histopathology revealed the mature teratoma. Conclusion: To the authors' best knowledge, this is the first documented diploic origin of mature teratoma at the orbital roof...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/30104907/vismodegib-and-orbital-excision-for-treating-locally-advanced-basal-cell-carcinoma
#7
Daniel T Hogarty, Nicholas G Dewhurst, Benjamin Burt
Purpose: Orbital invasion of periocular basal cell carcinoma (BCC) is a potentially life-threatening condition with high levels of ocular morbidity. Exenteration results in significant disfigurement and permanent loss of vision. We report our experience with a patient who presented with medial orbit invasion of a BCC following 2 previous microscopically adequate local excisions of medial canthal BCC, an adequate Moh's micrographic surgical excision of the tumor, and radiotherapy. The patient underwent an orbital excision where the tumor was found to have perineural involvement and extend beyond the posterior margin...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/30101354/multiple-aneurysms-clipping-through-the-eyebrow-approach-2-dimensional-operative-video
#8
Sorin Aldea, Stephan Gaillard
The eyebrow approach is a versatile technique that may apply to various vascular and tumoral pathologies of the anterior skull base. We present a case of multiple aneurysms clipping through the eyebrow approach and we discuss the nuances of this technique. A 44-yr-old patient presented with incidentally found aneurysms. Angiography showed 2 4.5-mm aneurysms on the left middle cerebral artery (MCA) and internal carotid artery (ICA) bifurcations. At surgery, the patient is positioned supine with the head elevated, slightly rotated, and extended in order to obtain good access and gravity retraction of the brain...
August 8, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/30090751/aggressive-orbital-rhabdomyosarcoma-in-adulthood-a-case-report-in-a-public-hospital-in-damascus-syria
#9
Tagrid Younes Ahmad, Hasan Nabil Al Houri, Abdullah Nabil Al Houri, Nagham Younes Ahmad
Orbital rhabdomyosarcoma (RMS) is a highly malignant tumor that originates mainly from mesenchymal tissue. It is considered a rare childhood malignancy; therefore, presentation in adulthood is scarce. In this case report, a 36-year-old male patient presented with a rapidly progressive RMS of the left orbit. The patient was treated in a different institution with radiochemotherapy with good response. However, relapse occurred after 2 months of completing the course, as rapid growing proptosis. Computed tomography scan revealed a lesion in the left orbit with invasion of the left ethmoid cells and the left maxillary sinus...
July 2018: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/30090138/a-case-of-intraorbital-intraconal-lymphangioma-with-post-traumatic-apoplexy
#10
G Prakash Rao, M Siddartha Reddy, Imran Mohammed, K Arjun Reddy, E Swathi Reddy
Orbital lymphangioma is an infrequent benign cystic lesion manifesting in childhood and presenting with slowly progressive proptosis, and restriction of eye movements. Here we report a rare case of 8 year old male patient presenting with unilateral painful proptosis and subconjunctival hemorrhage with decrease of vision and restriction of eye movements. CT scan and MRI were done which revealed an intraorbital and intraconal cystic space occupying lesion. Fronto-orbito zygomatic craniotomy was done for orbital decompression and subtotal excision of tumor and blood evacuation...
April 2018: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/30089224/magnetic-resonance-imaging-for-tumor-restaging-after-chemotherapy-in-retinoblastoma-with-optic-nerve-invasion
#11
Bhavna Chawla, Shweta Chaurasia, Sanjay Sharma, Rajesh Pattebahadur, Fahmi Hasan, Rachna Seth, Seema Kashyap, Seema Sen
PURPOSE: Extraocular retinoblastoma with optic nerve invasion is treated by a multimodal protocol consisting of neoadjuvant chemotherapy, enucleation, and adjuvant therapy. This study was conducted to evaluate the performance of magnetic resonance imaging (MRI) used for tumor restaging in these children after systemic chemotherapy administration. METHODS: Contrast-enhanced MRI scan of orbits and brain was performed at diagnosis and patients were treated with neoadjuvant chemotherapy...
August 8, 2018: Ophthalmic Genetics
https://www.readbyqxmd.com/read/30088454/inoperable-giant-growth-hormone-secreting-pituitary-adenoma-radiological-aspects-clinical-management-and-pregnancy-outcome
#12
Franca Dicuonzo, Stefano Purciariello, Aurora De Marco, Edoardo Guastamacchia, Vicenzo Triggiani
BACKGROUND AND OBJECTIVE: giant pituitary adenomas (GPAs) are benign tumours with a diameter ≥ 4 cm [1]. They can cause symptoms and signs due to the possible hyper-secretion of one or more pituitary hormones, and involvement of the surrounding structures whereas the compression of the pituitary itself can lead to hypopituitarism. METHODS: we report on a young woman with acromegaly due to an inoperable giant GH-secreting pituitary adenoma extending to right cavernous sinus, right orbital cavity, ethmoid, right maxillary sinus, sphenoid sinus, clivus and right temporal fossa, in which medical treatment with Octreotide-LAR was able to promptly relieve headache and bilateral hemianopsia due to optic chiasm involvement, improve acromegaly symptoms and, over the time, control tumor expansion, improving fertility and therefore allowing the patient to become pregnant...
August 7, 2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/30085221/results-of-transcranial-resection-of-olfactory-groove-meningiomas-in-relation-to-imaging-based-case-selection-criteria-for-the-endoscopic-approach
#13
Krunal Patel, Angelos G Kolias, Thomas Santarius, Richard J Mannion, Ramez W Kirollos
BACKGROUND: Endoscopic endonasal surgery (EES) is increasingly used for olfactory groove meningiomas (OGMs). The role of EES for large (≥4 cm) or complex OGMs is debated. Specific imaging features have been reported to affect the degree of gross total resection (GTR) and complications following EES for OGMs. The influence of these factors on transcranial resection (TCR) is unknown. OBJECTIVE: To examine the impact of specific imaging features on outcome following TCR to provide a standard for large and endoscopically less favorable OGMs against which endoscopic outcomes can be compared...
July 31, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/30085112/endoscopic-endonasal-resection-of-orbital-apex-cavernous-hemangioma-2-dimensional-operative-video
#14
Chris R Marcellino, Maria Peris-Celda, Michael J Link, Janalee K Stokken
A 52-yr-old woman was referred to a tertiary medical center for evaluation of 2 yr of progressive visual symptoms and 1 yr of retro-orbital pressure. Her ophthalmologic exam was unrevealing except for mild asymmetrical impairment in color perception. A gadolinium contrast-enhanced magnetic resonance image of the head showed a left extraconal orbital apex lesion consistent with cavernous hemangioma. Computed tomography reveled bony remodeling of the medial-inferior orbital walls with superior orbital fissure expansion...
July 31, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/30074961/surgical-correction-of-proptosis-in-craniofacial-benign-bone-lesions-involving-the-orbit
#15
Tzu-Yang Chi, Zheyuan Yu, Liang Xu, Huichuan Duan, Yoong Hoon Shim, Dejun Cao
Craniofacial bone lesions involving the orbit are often associated with symptoms, including proptosis, orbital dystopia, and overall facial asymmetry. Fibrous dysplasia and osteoma are the 2 most commonly observed bone tumors in the craniofacial area. Nine patients with either craniofacial fibrous dysplasia or osteoma and an unacceptable aesthetic appearance were treated from January 2015 to July 2016. All patients underwent preoperative craniofacial 3-dimensional computed tomographic (CT) scanning, and standard photographs were obtained...
August 2, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/30074190/whole-body-positron-emission-tomography-computed-tomography-pet-ct-in-the-evaluation-of-ophthalmic-tumors
#16
Ping Jiang, Shan-Shan Liao, Xiao-Li Lan, Fa-Gang Jiang
The clinical value of whole body positron emission tomography/computed tomography (PET/CT) as an imaging tool in diagnosis of ophthalmic tumors was investigated. The retrospective observational case series were performed on the patients with suspected ophthalmic tumors who underwent whole body PET/CT. The golden standard of diagnosis was the final pathological diagnosis or the results of long-term follow-up for patients without surgery/biopsy. PET/CT findings were compared with the golden standard. The sensitivity, specificity, accuracy and positive likelihood ratio of PET/CT in the detection of ophthalmic tumors were calculated...
April 2018: Current medical science
https://www.readbyqxmd.com/read/30067523/a-shift-in-the-orbit-immediate-endoscopic-reconstruction-after-transnasal-orbital-tumors-resection-response
#17
Benjamin S Bleier
No abstract text is available yet for this article.
July 31, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/30061968/-imaging-of-orbital-tumors-in-children
#18
Dounia Basraoui, Fadwa Jaafari, Hicham Jalal
Orbital tumors in children are characterised by a wide histological diversity due to the architectural complexity of the orbit. Several classifications may be proposed according to their location, histologic type and malignant or benign character. The most common clinical manifestation is the leukocoria. Diagnostic delay of these tumors, even if they are benign, may affect prognosis and lead to a loss of vision and/or a morphological deformation. Imaging plays an important role in positive diagnosis, in the differentiation between benign processes and potentially malignant processes, in the assessment of local and loco-regional staging and in follow-up monitoring under treatment...
2018: Pan African Medical Journal
https://www.readbyqxmd.com/read/30059394/secretory-carcinoma-of-the-lacrimal-gland-a-rare-case-report
#19
John G Bortz, Paul J L Zhang, Ralph C Eagle, Jennifer J Yong, Tatyana Milman
Secretory carcinoma is a salivary gland malignancy that recapitulates secretory carcinoma of the breast, along with its shared ETV6-NTRK3 gene fusion. Characterization of histopathologic, immunohistochemical, and molecular genetic features of this neoplasm has led to reclassification of a heterogeneous group of salivary gland carcinomas as secretory carcinoma and to identification of this neoplasm in other gland-containing tissues. The authors describe a 52-year-old man who presented with a 2-week history of diplopia and a well-circumscribed right orbital mass...
July 24, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/30059391/ophthalmic-plastic-surgery-in-patients-100-years-and-older
#20
Natalie Wolkow, David A Weinberg, Thomas A Bersani, Michael K Yoon, Daniel R Lefebvre, Nahyoung Grace Lee, Francis C Sutula, John T Mandeville, Mark P Hatton, Suzanne K Freitag
PURPOSE: The centenarian population is growing and ophthalmic plastic surgeons are providing care to an increasing number of elderly patients. Outcomes of centenarians have not been previously studied in the ophthalmic plastic surgery literature. The goal of the current review was to examine the baseline characteristics, surgical problems, and outcomes of this select group of patients. METHODS: A retrospective chart review was performed. Patients who underwent ophthalmic plastic surgery at age 100 or older between January 2000 and June 2016 by a member of the New England Oculoplastics Society were included in the study...
July 24, 2018: Ophthalmic Plastic and Reconstructive Surgery
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