Intrinsic Well-Demarcated Midline Brainstem Lesion Successfully Resected through a Midline Pontine Splitting Approach

2020 ◽  
pp. 1-6
Author(s):  
Kentaro Chiba ◽  
Yasuo Aihara ◽  
Takakazu Kawamata
Keyword(s):  
Surgical Approach ◽  
Fourth Ventricle ◽  
Axial Direction ◽  
Surgical Approaches ◽  
Lateral Side ◽  
Navigation Systems ◽  
Oculomotor Nucleus ◽  
Total Removal ◽  
Brainstem Lesion ◽  
Case Presentation

<b><i>Introduction:</i></b> Surgical approaches to intrinsic pontine lesions are technically difficult and prone to complications. The surgical approach to the brainstem through midline pontine splitting is regarded as safe since there are no crossing vital fibers in the midline between the abducens nuclei at the facial colliculi in the pons and the oculomotor nucleus in the midbrain, although its actual utilization has not been reported previously. <b><i>Case Presentation:</i></b> A 6-year-old boy presented with a large intrinsic cystic lesion in the pons. We successfully achieved gross total removal via the median sulcus of the fourth ventricle. The fixation in adduction and limitation of abduction were newly observed in the left eye after surgery. <b><i>Discussion:</i></b> The advantage of the surgical approach through the median sulcus is the longer line of dissection in an axial direction and the gain of a wider operative view. On the other hand, the disadvantage of this approach is the limited orientation and view toward lateral side and a possible impairment of the medial longitudinal fasciculi and paramedian pontine reticular formation, which are located lateral to the midline sulcus bilaterally and are easily affected via the median sulcus of the fourth ventricular floor. Ongoing developments in intraoperative neuro-monitoring and navigation systems are expected to enhance this promising approach, resulting in a safer and less complicated procedure in the future. <b><i>Conclusion:</i></b> The surgical approach through midline pontine splitting is suitable for midline and deep locations of relatively large pontine lesions that necessitate a wider surgical window.

Fourth Ventricle Outlet Obstruction and Diverticular Enlargement of Luschka Foramina in a Child with Down Syndrome

2020 ◽  
pp. 1-4
Author(s):  
Valentina Orlando ◽  
Pietro Spennato ◽  
Maria De Liso ◽  
Vincenzo Trischitta ◽  
Alessia Imperato ◽  
...  
Keyword(s):  
Down Syndrome ◽  
Fourth Ventricle ◽  
Endoscopic Third Ventriculostomy ◽  
Obstructive Hydrocephalus ◽  
Radiological Finding ◽  
Outlet Obstruction ◽  
Third Ventriculostomy ◽  
Viable Option ◽  
Case Presentation

<b><i>Introduction:</i></b> Hydrocephalus is not usually part of Down syndrome (DS). Fourth ventricle outlet obstruction is a rare cause of obstructive hydrocephalus, difficult to diagnose, because tetraventricular dilatation may suggest a communicant/nonobstructive hydrocephalus. <b><i>Case Presentation:</i></b> We describe the case of a 6-year-old boy with obstructive tetraventricular hydrocephalus, caused by Luschka and Magen­die foramina obstruction and diverticular enlargement of Luschka foramina (the so-called fourth ventricle outlet obstruction) associated with DS. He was treated with endoscopic third ventriculostomy (ETV) without complications, and a follow-up MRI revealed reduction of the ventricles, disappearance of the diverticula, and patency of the ventriculostomy. <b><i>Conclusion:</i></b> Diverticular enlargement of Luschka foramina is an important radiological finding for obstructive tetraventricular hydrocephalus. ETV is a viable option in tetraventricular obstructive hydrocephalus in DS.

Revising the Indications of Transtemporal Surgical Approaches in the Modern Endoscopic Era of Skull Base Surgery: A Dying Art

2020 ◽  
Author(s):  
Ravi Sankar Manogaran ◽  
Raj Kumar ◽  
Arulalan Mathialagan ◽  
Anant Mehrotra ◽  
Amit Keshri ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Approach ◽  
Nerve Palsy ◽  
Tertiary Care ◽  
Surgical Approaches ◽  
Microsurgical Anatomy ◽  
Complete Excision ◽  
Lateral Skull Base ◽  
The Individual ◽  
Selection Of

Abstract Objectives The aim of the study is to emphasize and explore the possible transtemporal approaches for spectrum of complicated lateral skull base pathologies. Design Retrospective analysis of complicated lateral skull base pathologies was managed in our institute between January 2017 and December 2019. Setting The study was conducted in a tertiary care referral center. Main Outcome Measures The study focused on the selection of approach based on site and extent of the pathology, the surgical nuances for each approach, and the associated complications. Results A total of 10 different pathologies of the lateral skull base were managed by different transtemporal approaches. The most common complication encountered was facial nerve palsy (43%, n = 6). Other complications included cerebrospinal fluid (CSF) collection (15%, n = 2), cosmetic deformity (24%, n = 4), petrous internal carotid artery injury (7%, n = 1), and hypoglossal nerve palsy (7%, n = 1). The cosmetic deformity included flap necrosis (n = 2) and postoperative bony defects leading to contour defects of the scalp (n = 2). Conclusion Surgical approach should be tailored based on the individual basis, to obtain adequate exposure and complete excision. Selection of appropriate surgical approach should also be based on the training and preference of the operating surgeon. Whenever necessary, combined surgical approaches facilitating full tumor exposure are recommended so that complete tumor excision is feasible. This requires a multidisciplinary team comprising neurosurgeons, neuro-otologist, neuroanesthetist, and plastic surgeons. The surgeon must know precise microsurgical anatomy to preserve the adjacent nerves and vessels, which is necessary for better surgical outcomes.

Intermammary Hidradenitis Suppurativa: Considerations on a Unique Presentation

2021 ◽  
pp. 1-4
Author(s):  
Ana Luísa João ◽  
Nélia Cunha ◽  
Joana Cabete
Keyword(s):  
Surgical Approach ◽  
Inflammatory Disease ◽  
Pilonidal Sinus ◽  
Hidradenitis Suppurativa ◽  
Chronic Inflammatory Disease ◽  
Pilonidal Sinus Disease ◽  
Sinus Disease ◽  
Case Presentation ◽  
Overweight Women

Introduction: Hidradenitis suppurativa (HS) is a potentially disabling chronic inflammatory disease. The intermammary location, not clearly specified in the usual phenotypic classifications, entails significant functional and cosmetic compromise. Case Presentation: Eleven cases of predominantly intermammary disease with multiple fistulization and disfiguring scarring were observed at our Department between January 2016 and March 2020. They were young (mean age = 22 years) obese or overweight women, in which the medical-surgical approach has led to variable results. Discussion/Conclusion: Intermammary HS possibly represents a unique phenotypic presentation, likely to be fistulizing and severe. We believe that anatomo-functional considerations, which can be paralleled to pilonidal sinus disease, contribute to its pathophysiology and striking appearance, and further emphasize the importance of multidisciplinary endeavor to reduce the morbidity associated with this seemingly overlooked location.

scholarly journals The concept of “Four Walls, Two Poles” in the lesions of the thalamus and ganglion regions: case report and literature review

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haiyang Yang ◽  
Gang Bai ◽  
Yongli Zhang ◽  
Guolong Chen ◽  
Lei Duan ◽  
...  
Keyword(s):  
Basal Ganglia ◽  
Literature Review ◽  
Surgical Resection ◽  
Three Dimensional ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Surgical Results ◽  
Case Presentation ◽  
Operation Process ◽  
Thalamic Glioma

Abstract Background There are few articles about the surgical techniques of thalamic glioma and the lesions in the basal ganglia area. According to three existing cases and the literature review (Twelve articles were summarized which mainly described the surgical techniques), we discuss the surgical characteristics of lesions of the thalamus and basal ganglia area and summarize the relevant surgical skills. Case presentation Of the three cases, two were thalamic gliomas and one was brain abscess in basal ganglia. According to the three-dimensional concept of the “Four Walls, Two Poles”, lesions of the thalamus and basal ganglia were surgically removed, and the operative effect was analysed by relevant surgical techniques. Surgical resection of the lesions of the thalamus and basal ganglia area according to the three-dimensional concept of the “Four Walls, Two Poles” has achieved good surgical results. Relevant surgical techniques, such as the use of retractors, the use of aspirators, the choice of surgical approaches, and the haemostasis strategy, also played an important role in the operation process. Conclusions In the presented three cases the three-dimensional concept of the “Four Walls, Two Poles” allowed for safe surgical resection of lesions of the thalamus and basal ganglia.

Irresectable tumours of the temporal bone

1987 ◽  
Vol 101 (5) ◽  
pp. 432-442 ◽  
Author(s):  
R. E. Quiney ◽  
L. M. Flood
Keyword(s):  
Temporal Bone ◽  
Case Reports ◽  
Sporadic Case ◽  
Petrous Apex ◽  
Surgical Approaches ◽  
Total Removal ◽  
Inaccessible Area ◽  
History Of ◽  
Petrous Temporal Bone

AbstractSporadic case reports and the few published series of expanding lesions of the deep petrous temporal bone propose a variety of surgical approaches to ensure excision. All such surgery represents a compromise between exposure adequate for total removal and avoidance of further neurological deficit. Unfortunately pathology in the petrous apex evolves relatively silently and diagnosis is delayed. In many cases total excision is impossible. We present a series of patients presenting with advanced tumours of the deep petrous temporal bone in order to illustrate the spectrum of disease encountered, the limited role of surgery and the natural history of irresectable pathology in this remote and inaccessible area.

SURGICAL APPROACH FOR KNEE JOINT ARTHROPLASTY IN CHILDREN WITH CANCER: THE INTRODUCTION OF A LATERAL APPROACH FOR SEGMENTAL RESECTION OF THE PROXIMAL TIBIA

2021 ◽  
Vol 100 (3) ◽  
pp. 227-233
Author(s):  
N.A. Bolshakov ◽  
◽  
A.Yu. Artemov ◽  
A.S. Slinin ◽  
E.O. Bezdolnova ◽  
...  
Keyword(s):  
Knee Joint ◽  
Surgical Approach ◽  
Ewing’S Sarcoma ◽  
Rating Scale ◽  
Ewing's Sarcoma ◽  
Functional Results ◽  
Lateral Approach ◽  
Joint Arthroplasty ◽  
Lateral Side ◽  
Significant Difference

The aim of the study was to analyze our own experience of using the lateral approach in knee joint arthroplasty in children with oncopathology. Materials and methods of research: the results of a retrospective nonrandomized uncontrolled single-center study are analyzed, within the framework of which 97 endoprosthetics of the knee joint were performed in children and adolescents with oncological pathology over 7 years (2012–2018). Lateral approach was used in 28 patients. The functional results were assessed using the MSTS rating scale 6 and 12 months after the surgery. Postoperative complications were analyzed according to the Henderson classification (modified by the ISOLS committee). Results: when comparing the functional outcome depending on the surgical approach, no statistically significant difference was found either after 6 months (p=0,124) or after 12 months (p=0,755). There is no more frequent development of complications detected (p=0,551). The access used also did not affect overall survival in osteosarcoma (p=0,577), in Ewing's sarcoma (p=0,493), as well as on event-free survival in osteosarcoma (p=0,829) and in Ewing's sarcoma (p=0,886). Conclusion: the use of the lateral surgical approach for knee arthroplasty in children with oncopathology does not affect the treatment results, however, it provides the surgeon with greater variability of actions during preoperative planning. This is especially true for patients whose biopsy tract is located on the lateral side.

scholarly journals Surgical Approach to Anorectal Melanoma with PET-CT Staging: A Case Report

2017 ◽  
Vol 03 (04) ◽  
pp. e177-e180 ◽  
Author(s):  
Nilufer Bulut ◽  
Sevinc Dagıstanlı ◽  
Burcak Yılmaz ◽  
O. Atay
Keyword(s):  
Surgical Approach ◽  
Early Stage ◽  
Wide Spectrum ◽  
Surgical Approaches ◽  
Histopathological Diagnosis ◽  
Imaging Method ◽  
Medical Treatments ◽  
Good Imaging ◽  
Rectal Melanoma ◽  
Pet Ct

AbstractRectal hemorrhage should be evaluated within a wide spectrum ranging from benign diseases to a malignant process. Especially, the melanomas of rectum are detected at an advanced stage when diagnosed since the present symptoms of rectal melanomas are similar. The question of what will be the surgical approach with MR, CT, and PET-CT imaging methods performed after histopathological diagnosis still conserves its topicality. PET-CT is a good imaging method for determination of distant metastasis and lymphatic involvement. In the present case, a patient with early-stage rectal melanoma was treated with APR. No relapse/metastasis was detected during the 18-month follow-up. The aggressive course of the disease and its low response rates to medical treatments may cause the surgical approaches to be more extensive.

Comparison of Outcomes following Primary and Repeat Resection of Craniopharyngioma

2021 ◽  
Author(s):  
Alexander A. Aabedi ◽  
Jacob S. Young ◽  
Ryan R. L. Phelps ◽  
Ethan A. Winkler ◽  
Michael W. McDermott ◽  
...  
Keyword(s):  
Surgical Approach ◽  
Residual Tumor ◽  
Extent Of Resection ◽  
Primary Resection ◽  
Endocrine Function ◽  
Surgical Approaches ◽  
Subtotal Resection ◽  
Limited Data ◽  
Time To Recurrence ◽  
Skull Base Lesions

Abstract Introduction The management of recurrent craniopharyngioma is complex with limited data to guide decision-making. Some reports suggest reoperation should be avoided due to an increased complication profile, while others have demonstrated that safe reoperation can be performed. For other types of skull base lesions, maximal safe resection followed by adjuvant therapy has replaced radical gross total resection due to the favorable morbidity profiles. Methods Seventy-one patients underwent resection over a 9-year period for craniopharyngioma and were retrospectively reviewed. Patients were separated into primary resection and reoperation cohorts and stratified by surgical approach (endonasal vs. cranial) and survival analyses were performed based on cohort and surgical approach. Results Fifty patients underwent primary resection, while 21 underwent reoperation for recurrence. Fifty endonasal transsphenoidal surgeries and 21 craniotomies were performed. Surgical approaches were similarly distributed across cohorts. Subtotal resection was achieved in 83% of all cases. There were no differences in extent of resection, visual outcomes, subsequent neuroendocrine function, and complications across cohorts and surgical approaches. The median time to recurrence was 87 months overall, and there were no differences by cohort and approach. The 5-year survival rate was 81.1% after reoperation versus 93.2% after primary resection. Conclusion Compared with primary resection, reoperation for craniopharyngioma recurrence is associated with similar functional and survival outcomes in light of individualized surgical approaches. Maximal safe resection followed by adjuvant radiotherapy for residual tumor likely preserves vision and endocrine function without sacrificing overall patient survival.

Surgery of pituitary tumours

2011 ◽  
pp. 165-176
Author(s):  
Ian F. Dunn ◽  
Edward R. Laws
Keyword(s):  
Technological Innovation ◽  
Surgical Approach ◽  
Transsphenoidal Surgery ◽  
Transsphenoidal Approach ◽  
Surgical Approaches ◽  
Pituitary Tumours ◽  
Full Spectrum ◽  
Clinical Syndromes ◽  
Surgical History ◽  
Surgical Options

Pituitary tumours have both endocrine and neuro-oncologic sequelae. Secretory tumours may liberate physiological hormones to pathological excess, generating a full spectrum of metabolic aberrations and hallmark clinical syndromes. Other pituitary tumours are endocrinologically inactive and generate instead a variety of compressive phenomena such as pituitary hypofunction and neurological compromise. Although advances continue to be made in the pharmacological and radiotherapeutic management of pituitary tumours, surgery remains the treatment of choice for most of these lesions. Of the available surgical options, the transsphenoidal route is the dominant surgical approach to these tumours. Shaped by the brilliant insight of individual surgeons and technological innovation, transsphenoidal surgery for the sellar and parasellar regions is a fascinating chronicle in surgical history whose evolution continues unabated. We herein review surgical approaches to pituitary tumours, emphasizing the transsphenoidal approach.

Suboccipital Surgical Approach to the Cerebellopontine Angle and Internal Auditory Canal

1978 ◽  
Vol 71 (4) ◽  
pp. 273-274 ◽  
Author(s):  
Mansfield F W Smith
Keyword(s):  
Facial Nerve ◽  
Brain Stem ◽  
Prone Position ◽  
Surgical Approach ◽  
Cerebellopontine Angle ◽  
Internal Auditory Canal ◽  
Total Removal ◽  
Size And Shape ◽  
Suboccipital Craniectomy ◽  
The Brain

The suboccipital craniectomy done with the patient in the prone position using modern microsurgical methods gives good anatomical exposure essential for efficient, accurate, total removal of cerebellopontine angle neoplasms and allows adjacent. uninvolved neurological structures to be spared. Modifying the anatomical exposure by varying the size and shape of the osseous craniectomy and placing the dural incision closer to the porus acousticus permits extradural retraction of the cerebellum. Thus large cerebellopontine angle neoplasms can be excised with less chance of damage to the cerebellum and smaller risk of hydrocephalus. The suboccipital craniectomy may be extended anteriorly to the facial nerve, thereby combining the suboccipital with the translabyrinthine approach. and providing a more direct angle to a large neoplasm involving the brain stem and cerebellum.

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