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https://www.readbyqxmd.com/read/28650886/elevated-fdg-activity-in-the-nonpneumatized-sphenoid-bone-in-an-infant
#1
Yin Jie Chen, Nelleke Tolboom, Lisa J States, Hongming Zhuang
A 7-month-old boy with malignant rhabdoid tumor of the right lateral neck, status post resection and chemotherapy, underwent FDG PET/CT for restaging. The images showed diffuse increased activity in the spleen and in the bone marrow of the appendicular bones and the spine, which is related to hematopoietin administered after chemotherapy. The images also revealed intense activity in the region of sphenoid bone, which is not a common region to have elevated FDG activity. The subsequent MRI scan showed that this activity was due to not-yet-converted red marrow in the sphenoid bone in this pediatric patient...
June 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28645926/nasopharyngeal-glial-heterotopia-with-delayed-postoperative-meningitis
#2
Kenichi Maeda, Kenji Furuno, Pin Fee Chong, Takato Morioka
A male infant, who underwent radical resection of a large glial heterotopia at the nasopharynx at 8 days, developed delayed postoperative bacterial meningitis at 9 months. Neuroradiological examination clearly demonstrated that meningitis had occurred because of the intracranial and extracranial connections, which were scarcely seen in the perioperative period. A transsphenoidal extension of hypothalamic hamartoma is possible because the connection started from the right optic nerve, running through the transsphenoidal canal in the sphenoid bone and terminating at the recurrent mass in the nasopharyngeal region...
June 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28640138/an-unusual-presentation-of-multiple-myeloma-with-unilateral-sudden-vision-loss-a-case-report
#3
Pei-Wen Wu, Ta-Jen Lee, Jim-Ray Chen, Chien-Chia Huang
RATIONALE: Plasma cell neoplasms are categorized by neoplastic proliferation of a single clone of plasma cells which produce a monoclonal immunoglobulin. Plasma cell neoplasms can present as a solitary plasmacytoma or as multiple myeloma. Both of them can progress to multiple myeloma. Once a diagnosis of plasmacytoma has been made, thorough examinations should be carried out for identifying the disease entity. PATIENT CONCERNS AND DIAGNOSES: Herein, we describe an extraordinary rare case of multiple myeloma with initial presentation of a left sphenoid neoplasm resulting in left-sided headache and rapid deterioration of visual acuity...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28637995/intracranial-bony-canal-of-the-middle-meningeal-artery-morphological-and-histological-analysis
#4
Michio Fujimoto, Naruhito Otsuka, Hiromitsu Ezure, Hiroshi Moriyama, Yuriko Inoue, Ryoichi Mori
The middle meningeal artery (MMA) can play an important role in the surgical revascularization. However, the MMA can be easily injured if it passes through a bony canal. We investigated the morphological and histological features of the bony canal to improve surgical results. MATERIALS AND METHODS: Fifty adult dry skulls were investigated. The length of the bony canal and the distance from the orbital rim to the bony canal were measured. Additionally, 28 cadaveric heads were examined histologically...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28636726/endoscopic-view-of-a-dumbbell-shaped-sphenoid-fungal-mass
#5
Dewey A Christmas, Joseph P Mirante, Eiji Yanagisawa
No abstract text is available yet for this article.
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28634510/internal-carotid-artery-and-sphenoidal-emissary-vesalian-vein-fistula-mimicking-a-carotid-cavernous-sinus-fistula
#6
Ava L Liberman, Preethi Ramchand, Kimberly Gannon, Eric L Zager, Bryan Pukenas, Aaron L Bress, Michael D Ezekowitz, Robert Hurst, Steven R Messé
No abstract text is available yet for this article.
July 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28632604/reassessing-the-anatomic-origin-of-the-juvenile-nasopharyngeal-angiofibroma
#7
Colin D McKnight, Hemant A Parmar, Kuanwong Watcharotone, Suresh K Mukherji
OBJECTIVE: A modern imaging review is necessary to further define the anatomic origin of the juvenile nasopharyngeal angiofibroma. METHODS: After institutional review board approval, a search from January 1998 to January 2013 yielded 33 male patients (aged 10-23 years) with pathologically proven juvenile nasopharyngeal angiofibroma lesions, as well as pretreatment computed tomography/magnetic resonance imaging. Juvenile nasopharyngeal angiofibroma involvement was assessed in the following regions: sphenopalatine foramen, pterygopalatine fossa, vidian canal, nasopharynx, nasal cavity, sphenoid sinus, choana, pterygomaxillary fissure/masticator space, orbit, and sphenoid bone...
June 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28626415/a-case-of-childhood-onset-giant-cell-tumor-that-caused-optic-nerve-atrophy-in-both-eyes
#8
Masahiro Tonari, Junko Matsuo, Hidehiro Oku, Jun Sugasawa, Tsunehiko Ikeda, Kazunori Tatsuzawa, Tomoaki Fujita
PURPOSE: The purpose of this study was to report the case of a female patient who had a giant cell tumor in the paranasal sinus during childhood, and while undergoing multiple resection surgeries experienced optic atrophy in both eyes. CASE PRESENTATION: This study involved a 35-year-old woman who was previously diagnosed with a giant cell tumor of the paranasal sinus bone at age 13. A CT scan revealed a large tumor extending from the sphenoid sinus to the ethmoid sinus...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28624428/undifferentiated-sarcoma-of-the-sphenoid-sinus
#9
Masaya Nagaishi, Kensuke Suzuki, Yoshiki Sugiura, Issei Takano, Yoshihiro Tanaka, Akio Hyodo
Paranasal sinuses sarcomas are rare and no treatments have been established. We report a young-adult case of sphenoid sinus sarcoma treated by carbon-ion radiotherapy. The patient presented with progressive left-sided visual impairment. A tumor was then identified and partial resection by transnasal approach was performed. The resected mass showed typical morphology of mesenchymal tumor, and morphological and molecular analyses ruled out a predominant-differentiation phenotype. The pathological diagnosis was undifferentiated sarcoma...
June 14, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28623412/long-term-follow-up-after-endoscopic-trans-sphenoidal-surgery-or-initial-observation-in-clivus-chordomas
#10
Jon Ramm-Pettersen, Radek Frič, Jon Berg-Johnsen
BACKGROUND: Resection of clivus chordomas through extensive skull base approaches is associated with high mortality and morbidity even in experienced hands. We report our experience with endoscopic trans-sphenoidal surgery, or a "wait-and-scan" strategy in selected patients. METHOD: Ten patients were diagnosed with clivus chordomas during an 8-year period. Six patients underwent primary treatment with endoscopic trans-sphenoidal surgery, followed by adjuvant proton-beam therapy in three of these patients...
June 16, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28621574/endovascular-plug-for-internal-carotid-artery-occlusion-in-the-management-of-a-cavernous-pseudoaneurysm-with-bifrontal-subdural-empyema-technical-note
#11
Sunil Manjila, Gagandeep Singh, Obinna Ndubuizu, Zoe Jones, Daniel P Hsu, Alan R Cohen
The authors demonstrate the use of an endovascular plug in securing a carotid artery pseudoaneurysm in an emergent setting requiring craniotomy for a concurrent subdural empyema. They describe the case of a 14-year-old boy with sinusitis and bifrontal subdural empyema who underwent transsphenoidal exploration at an outside hospital. An injury to the right cavernous segment of the ICA caused torrential epistaxis. Bleeding was successfully controlled by inflating a Foley balloon catheter within the sphenoid sinus, and the patient was transferred to the authors' institution...
June 16, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28618344/developmental-mechanism-of-muscle-tendon-bone-complex-in-the-fetal-soft-palate
#12
Michiyuki Nara, Kei Kitamura, Masahito Yamamoto, Ryotaro Nagakura, Keisuke Mitomo, Satoru Matsunaga, Shinichi Abe
OBJECTIVE: This study was performed to investigate how the palatine aponeurosis, medial pterygoid process (MPP) of the sphenoid bone, and tensor veli palatini (TVP) muscle form the pulley: muscle-tendon-bone complex. DESIGN: Mice at embryonic day (ED) 14-17 were used as sample in this study. Azan staining was performed to observe the morphology, and immunohistochemical staining of desmin was performed to closely observe the development of the myotendinous junction...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28616673/contribution-of-sellar-dura-integrity-to-symptom-manifestation-in-pituitary-adenomas-with-intratumoral-hemorrhage
#13
Yasuhiko Hayashi, Yasuo Sasagawa, Daisuke Kita, Issei Fukui, Masahiro Oishi, Osamu Tachibana, Fumiaki Ueda, Mitsutoshi Nakada
PURPOSE: Although hemorrhage within pituitary adenomas frequently exacerbates the symptoms, there are many grades of severity. Moreover, the contributing factors for symptom severity are still controversial. METHODS: This retrospective study included 82 patients who underwent transsphenoidal surgery for pituitary adenomas with intratumoral hemorrhage. The grades of preoperative symptoms were classified into group A, asymptomatic or minor symptoms; group B, moderate symptoms sufficient for complain; and group C, severe symptoms disturbing daily life...
June 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28607817/a-rare-case-report-of-mixed-olfactory-neuroblastoma-carcinoma-with-review-of-literature
#14
Charandeep S Gandhoke, Aditi Dewan, Divya Gupta, Simran K Syal, Anita Jagetia, Ravindra K Saran, Ravi Meher, Arvind K Srivastava, Daljit Singh
BACKGROUND: Olfactory neuroblastoma (ONB) is a rare malignant neuroectodermal tumor of the nasal cavity. Mixed olfactory neuroblastoma which contains areas of divergent differentiation is even rare. Till date, only 4 cases of mixed olfactory neuroblastomas have been reported. CASE DESCRIPTION: We report the case of a 46-year-old male who presented with the chief complaints of nasal bleeding and nasal obstruction since 4 months. Radiological imaging was suggestive of a large heterogeneous mass in the left superior nasal cavity with extensions into bilateral maxillary, ethmoidal, and sphenoidal sinuses, as well as into the anterior cranial fossa...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28603682/an-automated-methodology-for-assessing-anatomy-specific-instrument-motion-during-endoscopic-endonasal-skull-base-surgery
#15
R Alex Harbison, Yangming Li, Angelique M Berens, Randall A Bly, Blake Hannaford, Kris S Moe
Objectives  Describe instrument motion during live endoscopic skull base surgery (ESBS) and evaluate kinematics within anatomic regions. Design  Case series. Setting  Tertiary academic center. Participants  A single skull base surgeon performed six anterior skull base approaches to the pituitary. Main Outcomes and Measures  Time-stamped instrument coordinates were recorded using an optical tracking system. Kinematics (i.e., mean cumulative instrument travel, velocity, acceleration, and angular velocity) was calculated by anatomic region including nasal vestibule, anterior and posterior ethmoid, sphenoid, and lateral opticocarotid recess (lOCR) regions...
June 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28602922/the-spheno-pterional-point-a-strategic-point-for-burr-role-placement-in-frontotemporal-craniotomies
#16
Baltazar Leão Reis, Roberto Leal da Silveira, Sebastião Nataniel Silva Gusmão
BACKGROUND: Frontotemporal craniotomies are the most commonly performed neurosurgical approaches. We studied the external bony landmarks on the lateral surface of the skull to identify a "strategic" point where both the anterior and middle cranial fossae are exposed simultaneously during frontotemporal craniotomies through a single burr hole placed over the greater wing of sphenoid bone (spheno-pterional point). OBJECTIVE: This study aimed to anatomically define the spheno-pterional point via craniometric measurements taken on the lateral surface of the human skull...
June 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28596198/pituitary-abscess
#17
Jameela Mohammed Al Salman, Rawan Al Muataz Billa Al Agha, Mohamed Helmy
Pituitary abscess is an uncommon pituitary lesion. Its clinical diagnosis can be difficult to distinguish from other pituitary lesions. This pathology is characterised by vague symptoms of headaches, generalised tiredness and hypopituitarism manifestations. A history of recent meningitis, paranasal sinusitis or head surgery can be a suggestive of the source of infection.A 20-year-old man was admitted to neurosurgery department with complain of headache, fatigue, polyuria, polydipsia, blurred vision and sexual dysfunction...
June 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28594302/ectopic-orbital-meningioma-fact-or-fiction
#18
Lee Teak Tan, Christopher M Stewart, Fintan Sheerin, Brendan MacDonald, Priy Silva, Jonathan H Norris
Primary intraorbital ectopic meningiomas are rare and their existence remains controversial. We present a 30-year-old female with painless, non-axial proptosis and a palpable superomedial mass. The MRI demonstrated that the mass had no optic nerve sheath or sphenoid wing involvement and was initially reported to have no intracranial extension. The patient was initially thought to have an ectopic orbital meningioma. Subsequent multidisciplinary team (MDT) consultation and further specialist review of the MRI revealed a subtle dural tail connecting to an enhancing mass in the olfactory groove...
June 2017: Orbit
https://www.readbyqxmd.com/read/28590397/normal-nasopharyngeal-measurement-by-computed-tomography-in-adult
#19
Mohammad Waheed El-Anwar, Atef Hamed Ali, Ismail Elnashar, Inas M Elfiki, Ayman F Ahmed, Ghada Abdulmonaem
BACKGROUND: This study aims to investigate the detailed computed tomography (CT) measurement of the nasopharynx (NP) in normal adult detecting mean of its dimension and relation of that measurement to that of the sphenoid sinus. METHODOLOGY/PRINCIPAL: A normal paranasal CT scan and a straight nasal septum of 128 individuals (256 sphenoid sinuses) were included in the study. Axial images were acquired with multiplanar reformates to obtain delicate details in coronal and sagittal planes for all subjects...
June 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28588812/chronic-sinusitis-in-a-patient-with-selective-igg4-subclass-deficiency-controlled-with-enriched-immunoglobulins
#20
Gérard Dine, Nadia Ali-Ammar, Said Brahimi, Yves Rehn
A 71-year-old female patient with no major history of infection had presented with recurrent chronic purulent sinusitis over the past 3 years. These recurrent infections started in 2000 with otolaryngologists' support before diagnosis of IgG4 deficiency be asked. The patient was treated with increasingly extensive courses of antibiotics and underwent several maxillary and sphenoidal sinus washouts. She continued to present with purulent nasal discharge containing Staphylococcus epidermidis. The blood and immune work-ups were normal...
June 2017: Clinical Case Reports
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