Level I Neck Dissection Techniques and Implications for Surgery of the Skull Base, Paranasal Sinuses and Salivary Glands

2014 ◽  
Vol 75 (S 01) ◽  
Author(s):  
Christopher Rassekh ◽  
Bert O'Malley ◽  
Gregory Weinstein
Keyword(s):  
Skull Base ◽  
Salivary Glands ◽  
Neck Dissection ◽  
Paranasal Sinuses ◽  
Level I ◽  
Dissection Techniques

Adenoid cystic carcinoma of the tongue

2000 ◽  
Vol 114 (6) ◽  
pp. 477-480 ◽  
Author(s):  
Emre Üstündaĝ ◽  
Mete Iseri ◽  
O¨mer Aydin ◽  
Hülya Dal ◽  
Ahmet Almaç ◽  
...  
Keyword(s):  
Adenoid Cystic Carcinoma ◽  
Salivary Glands ◽  
Neck Dissection ◽  
Pleomorphic Adenoma ◽  
Fine Needle Aspiration ◽  
Needle Aspiration ◽  
Wide Resection ◽  
Selective Neck Dissection ◽  
Fine Needle ◽  
Adenoid Cystic

Malignant tumours of the salivary glands in children are extremely rare. We present here a 12-year-old girl initially diagnosed as pleomorphic adenoma on fine needle aspiration biopsy, and adenoid cystic carcinoma (ACC) after the lesion was excised and examined by histopathology. A wide resection of the lesion and bilateral supraomyohyoid neck dissection was performed. To our knowledge this is one of the youngest patients with ACC of the minor salivary glands. Due to its benign histological appearance, the biological agressiveness of ACC is usually underestimated. Although fine needle aspiration cytology (FNAC) is very valuable in diagnosis, cytological variations of pleomorphic adenoma must be considered. ACC of the tongue in a young age group should be treated with wide resection and selective neck dissection if the tumour is localized in places where the risk of metastasis is increased and if there is a clinically palpable lymph node. In such cases the clinician should not avoid radical operations even in a young patient.

scholarly journals The orbitopterygoid corridor as a deep keyhole for endoscopic access to the paranasal sinuses and clivus

2020 ◽  
pp. 1-10
Author(s):  
Kenichi Oyama ◽  
Kentaro Watanabe ◽  
Shunya Hanakita ◽  
Pierre-Olivier Champagne ◽  
Thibault Passeri ◽  
...  
Keyword(s):  
Nasal Cavity ◽  
Skull Base ◽  
Paranasal Sinuses ◽  
Middle Cranial Fossa ◽  
The Body ◽  
Middle Fossa Approach ◽  
Alternative Approach ◽  
Endoscopic Assistance ◽  
Skull Base Lesions ◽  
Cranial Fossa

OBJECTIVEThe anteromedial triangle (AMT) is the triangle formed by the ophthalmic (V1) and maxillary (V2) nerves. Opening of this bony space offers a limited access to the sphenoid sinus (SphS). This study aims to demonstrate the utility of the orbitopterygopalatine corridor (OPC), obtained by enlarging the AMT and transposing the contents of the pterygopalatine fossa (PPF) and V2, as an entrance to the SphS, maxillary sinus (MaxS), and nasal cavity.METHODSFive formalin-injected cadaveric specimens were used for this study (10 approaches). A classic pterional approach was performed. An OPC was created through the inferior orbital fissure, between the orbit and the PPF, by transposing the PPF inferiorly. The extent of the OPC was measured using neuronavigation and manual measurements. Two illustrative cases using the OPC to access skull base tumors are presented in the body of the article.RESULTSVia the OPC, the SphS, MaxS, ethmoid sinus (EthS), and nasal cavity could be accessed. The use of endoscopic assistance through the OPC achieved better visualization of the EthS, SphS, MaxS, clivus, and nasal cavity. A significant gain in the area of exposure could be achieved using the OPC compared to the AMT (22.4 mm2 vs 504.1 mm2).CONCLUSIONSOpening of the AMT and transposition of V2 and the contents of the PPF creates the OPC, a potentially useful deep keyhole to access the paranasal sinuses and clival region through a middle fossa approach. It is a valuable alternative approach to reach deep-seated skull base lesions infiltrating the cavernous sinus and middle cranial fossa and extending into the paranasal sinus.

scholarly journals FOSSA NAVICULARIS MAGNA AT THE SKULL BASE: EMBRYOGENESIS AND ITS DETECTION BY COMPUTED TOMOGRAPHY

2018 ◽  
Vol 99 (3) ◽  
pp. 153-157
Author(s):  
S. L. Kabak ◽  
V. V. Zatochnaya ◽  
Yu. M. Mel’nichenko ◽  
N. A. Savrasova ◽  
E. A. Dorokh
Keyword(s):  
Computed Tomography ◽  
Congenital Anomaly ◽  
Skull Base ◽  
Paranasal Sinuses ◽  
Ventral Surface ◽  
The Body ◽  
Spiral Computed ◽  
Edge Defect ◽  
Medical Centers ◽  
Fossa Navicularis

Fossa navicularis magna was detected in multislice spiral computed  tomography in two patients who turned to the medical centers with  pathology of the paranasal sinuses. Its appearance is determined during  the development of the basilar part of the occipital bone and the body of the sphenoid bone in embryogenesis. This fossa has the  appearance of an edge defect on the ventral surface of the clivus in  CBCT scans. Practical radiologist should interpret such a finding as a  congenital anomaly of development, but not as an invasive lesion.

scholarly journals Autopsy dissection techniques and investigations in deaths due to COVID-19 triggered fungal infections - A diagnostic review

2021 ◽  
Vol 8 (4) ◽  
pp. 207-213
Author(s):  
Himanshi Narang ◽  
Amit Patil
Keyword(s):  
Fungal Infection ◽  
Paranasal Sinuses ◽  
Fungal Infections ◽  
Invasive Disease ◽  
Invasive Fungal Infections ◽  
Correct Interpretation ◽  
Research Papers ◽  
Dissection Techniques ◽  
Second Wave

The COVID-19 pandemic, which originated from Wuhan, China, has rapidly spread worldwide, including India. As India grappled with the second wave, COVID-triggered fungal infection has suddenly risen tremendously, raising a sense of panic in the country. The fungal infection in COVID-19 includes Mucormycosis and Aspergillosis, as common fungal infections primarily affecting rhino-orbital structures. Many research papers have published postmortem findings in autopsies conducted on COVID-19 decedents, thereby helping to understand this contagious disease's pathogenesis. But, with the arrival of COVID-triggered fungal infection, which is a crucial invasive disease responsible for fatality, very few research papers have commented on the postmortem findings of invasive fungal infections affecting the rhino-orbital and craniocerebral structures in COVID-19 deaths. Therefore, the role of invasive fungal infection due to COVID-19 illness must be established in the causation of deaths in COVID-19 patients. This review research deals with autopsy dissection techniques and possible postmortem findings of invasive fungal infections involving the nasal and paranasal sinuses and orbital structures in COVID-19 deaths. The findings of fungal infection affecting nasal and paranasal systems may not differ in live patients and in a deceased; however, it is essential that correct interpretation of the postmortem findings aided by pre-or post-autopsy investigations is necessary to establish the role of covid triggered fungal infection in such deaths.

scholarly journals PARANASAL SINUS MUCOCELE AND ITS COMPLICATIONS: RETROSPECTIVE ANALYSIS AND LITERATURE REVIEW

2021 ◽  
pp. 1-3
Author(s):  
Sudhagar Eswaran ◽  
Namrataa S ◽  
Prasanna Kumar S
Keyword(s):  
Skull Base ◽  
Retrospective Analysis ◽  
Paranasal Sinus ◽  
Paranasal Sinuses ◽  
Vision Loss ◽  
Delay In Diagnosis ◽  
Diagnosis And Management ◽  
Audit Data ◽  
Tertiary Center ◽  
Skull Base Defect

BACKGROUND: Mucocele is a true cystic expansile mass filled with mucus resulting from obstruction of the sinus ostia. Prompt diagnosis and management are needed to avoid complications due to the intracranial or intra-orbital extension. OBJECTIVES: To audit data of mucocele of the paranasal sinuses in a tertiary center, to review the literature regarding the clinical features and the management of mucocele in the paranasal sinus and to emphasize the iatrogenic causes of mucocele after the development of Endoscopic Skull Base Surgeries. MATERIALS AND METHODS: A retrospective analysis of etiology, clinical presentation, sinuses involved, operative technique, complication, recurrence were interpreted. RESULTS: The mean age of 16 patients managed is 49. Location:37% frontal,19% ethmoidal,19% frontoethmoidal,19% sphenoidal,6% maxillary. The iatrogenic cause was 44%. Symptoms included proptosis, external swelling, nasal block, and discharge, and vision loss. Complications were orbital abscess and skull base defect. 14 patients underwent endoscopic procedures-excision or marsupialization. One patient underwent craniotomy; one patient combined approach was performed. One patient had a recurrence. CONCLUSION: Mucocele of the paranasal sinuses is still a rare clinical scenario and it is imperative to note that any delay in diagnosis and management can lead to expansion and erosion of the bony wall of the sinuses and causing complications.

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