scholarly journals Maxillary Sinus Mucopyocele: About an Endoscopic Management

2021 ◽  
Vol 3 (3) ◽  
pp. 1-3
Author(s):  
Y. Lakhdar ◽  
M. Hakimi ◽  
O. Benhoumad ◽  
Y. Rochdi ◽  
A. Raji
Keyword(s):  
Maxillary Sinus ◽  
Complete Recovery ◽  
Endoscopic Management ◽  
Resonance Imaging ◽  
Endoscopic Endonasal ◽  
Complete Filling ◽  
Cystic Formation ◽  
Rare Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
Left Maxillary Sinus

Introduction: Mucocele is a benign but expansive cystic formation, lined by a respiratory epithelium. When its content is infected, it is called a mucopyocele. It usually develops in the frontal-ethmoid complex. The maxillary sinus location is exceptional. Case report: a 43 year old man, presented with chronic unilateral nasal obstruction, purulent rhinorrhea and anosmia. Rhinoscopy showed a bulge in the middle meatus. The computed tomography (CT) showed complete filling of the left maxillary with low-density mass. Magnetic resonance imaging (MRI) confirmed the diagnosis of mucpyeocele of the left maxillary sinus. Patient underwent endoscopic endonasal marsupialization with complete recovery. Conclusion: Mucopyocele of the maxillary sinus is a benign rare lesion, however destructive. A radiological assessment is essential to guide the choice of surgical treatment. The endonasal route remains the reference treatment for this pathology.

scholarly journals Use of Magnetic Resonance Imaging to Predict Outcome after Stroke: A Review of Experimental and Clinical Evidence

2010 ◽  
Vol 30 (4) ◽  
pp. 703-717 ◽  
Author(s):  
Tracy D Farr ◽  
Susanne Wegener
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Complete Recovery ◽  
Research Translation ◽  
Resonance Imaging ◽  
Preclinical Research ◽  
Stroke Research ◽  
Future Potential ◽  
Magnetic Resonance Imaging Mri ◽  
The Individual

Despite promising results in preclinical stroke research, translation of experimental data into clinical therapy has been difficult. One reason is the heterogeneity of the disease with outcomes ranging from complete recovery to continued decline. A successful treatment in one situation may be ineffective, or even harmful, in another. To overcome this, treatment must be tailored according to the individual based on identification of the risk of damage and estimation of potential recovery. Neuroimaging, particularly magnetic resonance imaging (MRI), could be the tool for a rapid comprehensive assessment in acute stroke with the potential to guide treatment decisions for a better clinical outcome. This review describes current MRI techniques used to characterize stroke in a preclinical research setting, as well as in the clinic. Furthermore, we will discuss current developments and the future potential of neuroimaging for stroke outcome prediction.

scholarly journals Maxillary Sinus Ameloblastoma: Transnasal Endoscopic Management

2020 ◽  
pp. 014556132093055
Author(s):  
John Karp ◽  
Wei Xiong ◽  
Sara Derikvand ◽  
Amin Javer
Keyword(s):  
Maxillary Sinus ◽  
Endoscopic Resection ◽  
Sinus Surgery ◽  
Endoscopic Management ◽  
Additional Surgery ◽  
History Of ◽  
Incidental Discovery ◽  
Short And Long Term ◽  
Left Maxillary Sinus ◽  
Odontogenic Neoplasm

Ameloblastoma (AM) is a slow growing and aggressive benign tumor with an odontogenic epithelial origin arising from the mandible or maxilla. The odontogenic neoplasm invades local tissues asymptomatically and accounts for 1% of oral tumors and over 10% of odontogenic tumors. A 64-year-old man with a history of allergic fungal rhinosinusitis (AFRS) undergoing a revision image-guided endoscopic sinus surgery was found to have a fibrous mass suspicious of malignancy projecting inferolaterally and attached to the floor of the left maxillary sinus. Diagnostic biopsies were taken, and additional surgery was required to successfully resect the tumor via a transnasal endoscopic dissection. Multiple permanent pathology samples concluded the diagnosis of an AM. Endoscopic investigations led to the incidental discovery and ultimate complete endoscopic resection of the AM. The utilization of an endoscopic resection compared to the traditional maxillectomy with reconstruction results in significant less short and long-term morbidity for the patient.

scholarly journals Sinonasal Chondrosarcoma, an Unusual Location

2020 ◽  
Author(s):  
Oumniya Abouhanine ◽  
Aicha Merzem ◽  
Vianney Ndayishimiye ◽  
Omar Amriss ◽  
Hasnaa Belgadir ◽  
...  
Keyword(s):  
Hard Palate ◽  
Locally Advanced ◽  
Long Bones ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Extension Work ◽  
Cross Sectional Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Left Maxillary Sinus ◽  
Work Up

Introduction: Chondrosarcoma is a tumour with a cartilaginous matrix frequently encountered in long bones and the pelvis with rare sinonasal location. Patient and methods: We report the case of a 25-year-old patient who was referred to us for an extension work-up for sinonasal chondrosarcoma confirmed by anatomopathological examination. Results: Facial magnetic resonance imaging (MRI) confirmed by a CT scan showed an osteolytic tumour process of the hard palate and walls of the left maxillary sinus that was locally advanced. Conclusion: The sinonasal location of a chondrosarcoma is rare. Characterized by cross-sectional imaging, confirmation was provided by histological assessment.

Endoscopic sinus surgery for sinonasal haemangiopericytomas

2002 ◽  
Vol 116 (11) ◽  
pp. 951-954 ◽  
Author(s):  
E. Serrano ◽  
A. Coste ◽  
J. Percodani ◽  
S. Hervé ◽  
L. Brugel
Keyword(s):  
Sphenoid Sinus ◽  
Malignant Potential ◽  
Sinus Surgery ◽  
Endonasal Approach ◽  
Resonance Imaging ◽  
Endoscopic Endonasal ◽  
Endoscopic Guidance ◽  
Magnetic Resonance Imaging Mri ◽  
Operative Assessment

Haemangiopericytomas are rare peri-vascular tumours with variable malignant potential. The nasal cavity and the paranasal sinuses are most often involved in the head and neck. Five cases of haemangiopericytomas treated by a strict endonasal endoscopic approach are presented. Bleeding and nasal obstruction are the most frequent symptoms. Computed tomography (CT) scan and magnetic resonance imaging (MRI) allowed pre-operative assessment. Angiography with embolization was needed in two of the five cases. None of our patients presented with malignant histology. Our five cases were operated on, and a total tumour excision was performed through the endoscopic endonasal approach. We had one recurrence with a mean follow-up of 4.5 years. We suggest that when the tumour is purely intranasal or strictly located in the ethmoid or sphenoid sinus, it can be removed via an endonasal approach under endoscopic guidance in experienced hands.

scholarly journals The Utility of Using Preoperative MRI as a Predictor for Intraoperative Pituitary Adenoma Consistency and Surgical Resection Technique

2019 ◽  
Vol 81 (06) ◽  
pp. 651-658
Author(s):  
Jonathan J. Yun ◽  
Stephen J. Johans ◽  
Daniel J. Shepherd ◽  
Brendan Martin ◽  
Cara Joyce ◽  
...  
Keyword(s):  
Intensity Ratio ◽  
Perioperative Complications ◽  
Extent Of Resection ◽  
Quantitative Mri ◽  
Collagen Content ◽  
Subtotal Resection ◽  
Resonance Imaging ◽  
Coronal Image ◽  
Endoscopic Endonasal ◽  
Magnetic Resonance Imaging Mri

Abstract Objective Most pituitary adenomas are of soft consistency and can be resected during surgery with routine suction instruments. However, fibrous adenomas may require more aggressive techniques. The ability to predict consistency on magnetic resonance imaging (MRI) would improve preoperative preparation and may have implications on the extent of resection. Design A retrospective review of MRI and tumor histology of 50 consecutive patients who underwent endoscopic endonasal resection for nonfunctional adenomas was performed. Methods An intensity ratio was calculated based on quantitative MRI signal intensity of the adenoma and pons. Intraoperatively, a sequentially graded technique required for resection ranged from suction (R1) for softer tumors, curettes (R2) for tumors with intermediate consistency, and aspirators and/or other microinstruments (R3) for firmer tumors. Fibrotic content was determined from histologic collagen percentage, and rates of gross total resection (GTR) were calculated from postoperative imaging. Statistical analyses were performed to determine if resection classification could be predicted by intensity ratio or collagen percentage, calculate ratio of cut-off points for clinical use, and assess for correlation between intensity ratios and collagen percentage. Results Tumors with ratios < 1.6 on the T2-weighted coronal image and collagen content > 5.3% were likely to have required a more aggressive resection technique. Statistically significant lower rates of GTR and higher rates of perioperative complications were seen with such tumors. Conclusion Preoperative MRI analyses can be helpful but not definitive in predicting adenoma consistency. Fibrous adenomas, associated with higher collagen content, are more difficult to resect and have higher rates of subtotal resection.

scholarly journals Multinodular and vacuolating neuronal tumor of the cerebrum: three case reports

2021 ◽  
Vol 61 (1) ◽  
pp. 1-4
Author(s):  
Antônio Gláuber Uchôa Lessa ◽  
Lucas Alverne Freitas de Albuquerque ◽  
Norma Martins de Menezes Morais ◽  
Daniel Aguiar Dias ◽  
Paulo Ribeiro Nóbrega
Keyword(s):  
Clinical Presentation ◽  
Case Reports ◽  
Low Grade ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Neoplastic Lesion ◽  
Mri Features ◽  
Rare Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
Neuronal Tumor

Multinodular and vacuolating neuronal tumor (MVNT) of the cerebrum is a seizure-associated rare lesion that currently appears to be a malformative lesion or hamartoma rather than a low-grade neoplastic lesion. MVNT pathognomonic magnetic resonance imaging (MRI) features allow for diagnostic accuracy in the differential diagnosis. Lesions are usually asymptomatic, nonprogressive and incidentally found requiring only imaging monitoring over time. Although uncommon, it is important to be familiar with MVNT clinical presentation and key imaging features. We here present a series of three cases with imaging findings similar to those described in the literature. These patients were followed with serial neuroimaging.

Ruptured aneurysm of noncoronary sinus of valsalva: demonstration with magnetic resonance imaging

2008 ◽  
Vol 49 (8) ◽  
pp. 889-892 ◽  
Author(s):  
T. C. Dincer ◽  
I. Basarici ◽  
C. Calisir ◽  
A. Mete ◽  
C. Ermis ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Sinus Of Valsalva ◽  
Resonance Imaging ◽  
Conventional Angiography ◽  
Rare Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Diagnostic Importance

There are few published reports regarding imaging findings of sinus of Valsalva aneurysms (SVA) with magnetic resonance imaging (MRI). We present an unusual form of ruptured SVA, emphasizing the diagnostic importance of MRI among a range of imaging techniques. This case report describes a case of idiopathic (thought to be congenital in origin), acutely symptomatic ruptured noncoronary SVA diagnosed by MRI and confirmed with conventional angiography and surgery. MRI accurately showed aneurysm size, location, and rupture into the right atrium and provided valuable information about this rare lesion.

scholarly journals Cluster-like headache secondary to maxillary sinusitis by Aspergillus

2018 ◽  
Vol 1 ◽  
pp. 251581631881422
Author(s):  
Laura Martinez Rodriguez ◽  
Angel Ignacio Perez Alvarez ◽  
Jose Maria Sanchez Alvarez
Keyword(s):  
Maxillary Sinus ◽  
Maxillary Sinusitis ◽  
International Headache Society ◽  
Brain Magnetic Resonance Imaging ◽  
Imaging Study ◽  
Resonance Imaging ◽  
Symptomatic Cluster Headache ◽  
Magnetic Resonance Imaging Mri ◽  
Atypical Feature ◽  
The Right

A symptomatic cluster headache (CH), caused by fungal maxillary sinus infection fulfilling the criteria of International Headache Society (ICDH-3) for CH is presented. A 35-year-old man without previous headaches reported episodes of pain in the right fronto-orbitary region, with severe eyelid oedema, photophobia, frontal sweating, lacrimation, conjunctival injection and rhinorrhoea, which lasted for 2–3 h. A brain magnetic resonance imaging (MRI) showed occupation of the right maxillary sinus, a mycetoma due to Aspergillus fumigatus. Although rare, secondary causes must be discarded before the diagnosis of a primary CH is made. Imaging study should always be performed, even though no atypical feature was present and ICDH-3 were fulfilled.

scholarly journals Isolated Mammillary Bodies Damage—An Atypical Presentation of Wernicke Syndrome

2018 ◽  
Vol 8 (11) ◽  
pp. 104
Author(s):  
Samar Abbas ◽  
Halim Abboud ◽  
Moussa Chalah ◽  
Chadi Sabbagh ◽  
Samar Ayache
Keyword(s):  
Anterograde Amnesia ◽  
Complete Recovery ◽  
Resonance Imaging ◽  
Wernicke Encephalopathy ◽  
Mammillary Bodies ◽  
Fluid Attenuated Inversion Recovery ◽  
Partial Colectomy ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri ◽  
T2 Mri

We report atypical magnetic resonance imaging (MRI) lesions in a case of Wernicke encephalopathy. The patient presented with isolated anterograde amnesia following a partial colectomy complicated by peritonitis. Fluid-attenuated inversion recovery and T2 MRI sequences were normal. However, bilateral contrast enhancement of mammillary bodies was shown on T1 gadolinium-enhanced sequences. Blood tests revealed thiamine deficiency. The diagnosis of Wernicke encephalopathy was made and thiamine supplementation was given, resulting in complete recovery of the memory functions.

scholarly journals Endoscopic Endonasal Resection of C1–C2 Pannus, a Step-by-Step Surgical and Anatomical Description: 2-Dimensional Operative Video

2020 ◽  
Author(s):  
Mohamed Samy Elhammady ◽  
Mohammad Al-Bar ◽  
Florian Roser
Keyword(s):  
Spinal Cord ◽  
Preoperative Assessment ◽  
Cord Compression ◽  
Cervical Fusion ◽  
Resonance Imaging ◽  
Endoscopic Endonasal ◽  
Wheel Chair ◽  
Posterior Cervical Fusion ◽  
Magnetic Resonance Imaging Mri ◽  
Spastic Quadriparesis

AbstractExpanded endonasal endoscopic approaches provide access to the entire central skull base and craiocervical junction. The authors present a case of an 81-year-old man who presented with progressive spastic quadriparesis to the point of being wheel-chair bound. Cervical spine computed tomography (CT) and magnetic resonance imaging (MRI) demonstrated multilevel extensive spondylitic changes with a large pannus at the C1–2 junction, severely compressing the spinal cord (Figs. 1 and 2). Given the significant anterior spinal cord compression and the patient's substantial weakness, the decision was made to perform an endoscopic endonasal anterior cervical decompression and resection of the pannus followed a posterior cervical fusion. The patient recovered well following surgery with significant improvement of motor function. The preoperative assessment, the step-by-step surgical technique, and the technical nuances are demonstrated and discussed.The link to the video can be found at: https://youtu.be/HzrZO-0Vol4.

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