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Wyświetlanie 1-15 z 16
Tytuł:
Retroperitoneal „Ancient” Schwannoma – A Rare Case of Rare Location: Case Report and Literature Review
Autorzy:
Walczak, Dominik A.
Jaguścik, Rajmund
Olborski, Bogusław
Fałek, Wojciech
Trzeciak, Piotr W.
Powiązania:
https://bibliotekanauki.pl/articles/1397019.pdf
Data publikacji:
2012-12-01
Wydawca:
Index Copernicus International
Tematy:
schwannoma
“ancient schwannoma”
neurilemmoma
retroperitoneal tumor
Opis:
Schwannomas are benign tumors derived from glial cells of peripheral nerve sheaths. They usually occur in association with Von Recklinghausen‘s disease and most commonly are observed on the head, neck, and upper extremities. Rare morphological variants may be misinterpreted as a malignancy under microscopic examination. The study presented a case of a sporadic “ancient” Schwannoma cell tumor located in the retroperitoneum. Literature data concerning diagnosis and treatment of the above-mentioned pathology was also reviewed.
Źródło:
Polish Journal of Surgery; 2012, 84, 12; 646-650
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Schwannoma of the posterior pharyngeal wall – case report
Autorzy:
Torchalla, Patrycja
Czesak, Małgorzata
Osuch- Wójcikiewicz, Ewa
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1398947.pdf
Data publikacji:
2021
Wydawca:
Index Copernicus International
Tematy:
oropharynx
schwannoma
surgery
Opis:
The authors present a case report of a 46-year-old man with a tumor of the posterior pharyngeal wall. Based on clinical examination and magnetic resonance imaging, the patient was qualified for surgical treatment. The patient underwent tumor resection under general anesthesia. Histopathological examination of resected tumor revealed the diagnosis of ancient schwannoma.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2021, 10, 1; 53-56
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Facial nerve neuroma mimicking chronic otitis
Autorzy:
Zwierzyńska, Klaudyna
Bartoszewicz, Robert
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399067.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
facial paralysis
facial schwannoma
otitis media
Opis:
A 44-year-old male presented with a facial schwannoma extending into both the middle cranial fossa and mastoid processus. Due to hearing loss, facial nerve palsy and inflammatory changes in CT scan, this patient was misdiagnosed as chronic otitis media. Audiogram showed a right mixed hearing loss with 30–40 dB air-bone gap. In MR, features of the facial nerve neuroma were found. The patient was qualified for surgery to remove the tumor via middle fossa approach, with possible conversion to the retroauricular approach. Ossiculoplasty LC was performed. Diagnostic problems and methods of treatment are discussed.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2020, 9, 2; 58-61
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A schwannoma of facial nerve in the extracranial segment – a case report
Autorzy:
Tarazewicz, Diana
Wierzchowska, Małgorzata
Burduk, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1399650.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
facial nerve
neurinoma
parotid gland
schwannoma
Opis:
The report aims to present a rare case of facial nerve schwannoma within the parotid gland. Schwannomas are benign, welldefined tumours arising from Schwann cells that form the myelin sheaths of peripheral, cranial or spinal nerves. 25–45% of them are located within the head and neck, mainly in the parapharyngeal space. The intraparotid localisation is rare. The aetiology of cancer is unknown. Preoperative diagnosis, both radiological and cytological, is difficult and often does not give the correct diagnosis. Radiologically, a multiform adenoma is usually suspected, and fine needle aspiration biopsy is nondiagnostic. Due to the rarity and benign nature of the tumour, there has been debate over the need for surgical treatment.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2019, 8, 3; 44-49
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A rare case of multiple neurogenic tumours in the parapharyngeal space
Rzadki przypadek nowotworów mnogich neurogennych przestrzeni przygardłowej
Autorzy:
Michalak- Kolarz, Marta
Stryjewska-Makuch, Grażyna
Kolebacz, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1399710.pdf
Data publikacji:
2018-10-29
Wydawca:
Index Copernicus International
Tematy:
Schwannoma
ganglioneuroma
parapharyngeal space
przestrzeń przygardłowa
Opis:
Parapharyngeal space tumours are rare and represent less than 1% of head and neck tumours. Approximately 20% of them are neurogenic tumours, of which the most common are schwannomas and paragangliomas. The authors present the case of a 64-year-old female patient during diagnosis of cervical spine disorders, in whom the presence of a parapharyngeal space tumour reaching the ostium of the internal carotid artery was accidently revealed. After surgical removal of the lesion, two different tumours of different origin, from the vagus nerve and the cervical portion of the sympathetic nervous system, were detected by histopathological examination.
Guzy przestrzeni przygardłowej występują rzadko i stanowią mniej niż 1% guzów głowy i szyi. W ok. 20% to guzy neurogenne, z czego najczęściej są to nerwiaki osłonkowe i paraganglioma. Autorzy prezentują przypadek 64-letniej chorej, u której w trakcie diagnostyki schorzeń kręgosłupa szyjnego przypadkowo stwierdzono obecność guza w przestrzeni przygardłowej, sięgającego otworu tętnicy szyjnej wewnętrznej. Po usunięciu chirurgicznym zmiany, badanie histopatologiczne zidentyfikowało dwa różne guzy o odmiennym pochodzeniu, z nerwu błędnego i części szyjnej układu współczulnego.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2018, 7, 4; 22-26
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laryngeal tumour of neurogenetic origin – case report and review of the literature
Autorzy:
Majszyk, Daniel
Krawczyk, Przemysław
Kloc, Michał
Rytel, Adam
Osuch-Wójcikiewicz, Ewa
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399656.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
benign neoplasm
hoarseness
larynx
schwannoma
Opis:
Schwann cell tumours are a rare group of benign neoplasms that origin form peripheral nerves. 0.1%–1.5% develops in the larynx causing hoarseness, difficulty swallowing and dyspnoea. The treatment of choice is surgical resection of the tumour during open type surgery or endoscopic procedure. The chosen surgical technique depends on tumour location, size observed in clinical examination and imaging. Also, clinical manifestation of the disease is included in the decision-making process.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2019, 8, 3; 35-39
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Schwannoma of the vagal nerve – case report
Autorzy:
Krawczyk, Przemysław Hubert
Kaczmarczyk, Dariusz
Braun, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1400414.pdf
Data publikacji:
2017
Wydawca:
Index Copernicus International
Tematy:
schwannoma
vagal nerve
neck tumor
Opis:
Schwann cell tumour is a rare benign neoplasms, which in approximately 25–45% of cases localises in the head and neck region. The half of them is found intracranially, within the cochleovestibular nerve (n. VIII) leading to deef. The slow growth and the lack of characteristic clinical signs influence clinically silent development of the tumour. Presence of the clinical signs may by connected with the pressure on the surrounding anatomical structures or the damage of the affected nerve. The treatment of the choice of the extracranial tumours is surgical resection. In presented case, the tumour development was signless. The attempt of the tumour enucleation was taken. Because of the difficulties with the tumour extracapsular enucleation, the decision of radical resection of the tumour and a part of the vagal nerve had been made. The vagal Schwann cell tumour is benign and rare neoplasm, that should be resected, despite it doesn’t influence the suspected patients survival. The main problem stands for the complications due to the nerve damaging during the surgery.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2017, 6, 3; 19-24
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Meningioma mimicking vestibular schwannoma – a case report
Autorzy:
Wojciechowski, Tomasz
Drożdż, Adrian
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399612.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
meningioma
internal acoustic meatus
tinnitus
schwannoma
Opis:
Meningiomas are one of the most common intracranial neoplasms, usually located in the supratentorial region. Their location within the posterior cranial fossa is rare, but even in such cases, the diagnosis is possible owing to the characteristic imaging features. In this article, we present a case report of a patient with a meningioma of an internal acoustical meatus resembling vestibulo-cochlear nerve schwannoma in its typical location, causing symptoms such as asymmetric hearing loss, tinnitus and dizziness.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2019, 8, 1; 49-52
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neuroma (schwannoma). A rare pancreatic tumor
Autorzy:
Witkowski, Grzegorz
Kołos, Małgorzata
Nasierowska-Guttmejer, Anna
Durlik, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1391855.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
pancreas
pancreatoduodenectomy
schwannoma
tumor of pancreas
Opis:
Introduction: Neuroma (Schwannoma in Latin) is an encapsulated, mesenchymal tumor arising from Schwann cells surrounded by nerves. Hence it can be located in any area in the body with passing peripheral nerves. The most common location is the head, neck, and extremities. The tumor arising from Schwannoma cells was first described by Stout and Carson in 1935. Pancreatic schwannomas are extremely rare tumors. Until 2017, in English literature 68 cases have been described. Surgical treatment is the most common way of treating pancreatic schwannomas, and postoperative prognoses are good. Case report: A 63-year-old patient was admitted to the Clinical Department of Gastroenterological Surgery and Transplantation of the Central Clinical Hospital at the Ministry of Interior and Administration in Warsaw due to pancreatic head cancer. Needle biopsy–both ultrasound-guided and CT-guided as well as open biopsy for lesions in the pancreas did not show tumor cells in any of the collected samples. Abdominal CT in a projection of the uncinate process of the pancreas revealed an oval lesion highly suspected of neoplastic process. Next, diagnostics was extended by abdominal MRI which revealed a retroperitoneal tumorous thick-walled cystic mass filled with fluid. The patient was qualified for surgical treatment. Pancreaticoduodenectomy (Whipple Procedure) was done on August 22, 2017. Material sent for histopathological examination revealed Schwannoma capitis pancreatis. In surgical practice, pancreatic schwannoma occurs extremely rare, but in centers which conduct large numbers of surgical procedures in the pancreas, a case like this may occur.
Źródło:
Polish Journal of Surgery; 2020, 92, 1; 48-51
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An uncommon breast lump with the diagnosis of schwannoma
Autorzy:
Shiryazdi, Seyed Mostafa
Safi Dahaj, Farzan
Alamdar Yazdi, Arezoo
Shishehbor, Fatemeh
Powiązania:
https://bibliotekanauki.pl/articles/1391894.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
breast
neoplasm
palpable breast mass
schwannoma
Opis:
Introduction: Schwannoma (neurilemmoma) is a kind of a slow-growing, benign, and heterogeneous neoplasm originating from Schwann cells. Schwannoma has a predilection for the head, neck, and extremities. However, it can occur in the breast dermis, deep breast parenchyma, and axillary soft tissue. Case report: In this study, a 51-year-old woman is reported with a breast mass suspected of malignancy, who was diagnosed with schwannoma by a pathologist after surgery. In cases with palpable breast masses, Schwannoma should be considered as a part of differential diagnosis. In spite of various imaging modalities used in the diagnostics of breast lesions, excisional or core needle biopsy is suggested for the definitive diagnosis of schwannoma.
Źródło:
Polish Journal of Surgery; 2020, 92, 5; 60-62
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neurilemoma of the Median Nerve - Surgical Strategies Based on a Case Report
Autorzy:
Ulatowski, Łukasz
Kaniewska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1395838.pdf
Data publikacji:
2014-12-18
Wydawca:
Index Copernicus International
Tematy:
neurilemoma
schwannoma
peripheral neural tumor
microsurgery
Opis:
The study presented a case of a patient with a neurilemoma of the median nerve. It presented as a six centemeters tumor, at the level of the proximal one third of the arm with only mild paraesthesias within frst to third ray of the hand. MRI showed the relationship of the tumor and the median nerve, and allowed for the preliminary diagnose of a benign peripheral neural sheath tumor (neurilemoma or neurofibroma). During the first operation the tumor has not been excised, because nerve reconstruction technique was not available. During the second procedure excision of the tumor has been performed without resection of the median nerve trunk with no postoperative deficiencies. The paper provides a detailed description of a surgical procedure. The presented case, like current publications shows that peripheral neural sheath tumor may be usually excised without resection of the nerve trunk, although the possibility of nerve fascicles injury or the need to excise them in the case of neurofibroma clearly suggest that these type of operations should be carried out in centers with microsurgical facilities.
Źródło:
Polish Journal of Surgery; 2014, 86, 9; 429-432
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interchangeability of three different methods of calculating Pure Tone Average in patients with vestibular schwannoma to assess the risk of surgery-related hearing loss
Autorzy:
Ochal-Choińska, Aleksandra
Lachowska, Magdalena
Kurczak, Katarzyna
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1397311.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
acoustic neuroma
audiometry
hearing loss
vestibular schwannoma
Opis:
Background: Patients with vestibular schwannoma (VS) most commonly present with hearing threshold reduction for high frequencies and a falling type of audiometric curve. However, it is doubtful whether all Pure Tone Averages described in the literature characterize patients with VS correctly, as the type of PTA which comprises higher frequencies may be more appropriate for hearing status assessment in those patients. Aim: The aim of this study was to analyze 3 common methods of calculating Pure Tone Averages (PTA1 – 500, 1000, 2000 and 3000 Hz; PTA2 – 500, 1000, 2000 and 4000 Hz; PTA3 – 500, 1000 and 2000 Hz) and to determine which of them is the most reliable for the assessment of VS patients. Material and Methods: The study group included 86 patients operated on due to vestibular schwannoma accessed via the middle cranial fossa. Results: Regarding the method of calculating Pure Tone Averages (PTA1, PTA2 and PTA3) identical or similar correlations were found between the preoperative values of Pure Tone Averages (PTA1, PTA2 and PTA3) and surgery-related hearing loss, as well as individual parameters of audiologic tests. Conclusions: Pure Tone Averages calculated according to 3 different methods (PTA1, PTA2, PTA3) may be used interchangeably in the assessment of hearing in VS patients.
Źródło:
Polish Journal of Otolaryngology; 2020, 74, 5; 11-16
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New directions in molecular diagnostics and therapy of vestibular schwannomas
Autorzy:
Litwiniuk, Malgorzata
Makuszewska, Maria
Bartoszewicz, Robert
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1399284.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
acoustic neuroma
bevacizumab
biological treatment
microRNAs
prognostic markers
vestibular schwannoma
Opis:
The molecular basis for the formation and growth of vestibular schwannomas (VS) has been elucidated in the recent years. The main genetic and epigenetic aberrations, changes in gene expression and specific signaling pathways involved in pathogenesis of sporadic VS and neurofibromatosis type II (NF2) have been defined. These findings facilitated the search for prognostic markers in VS and potential targets for biological therapy. This publication summarizes the main directions of research in the field of molecular diagnostics and pharmacotherapy of VS based on biological agents.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2020, 9, 4; 55-59
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertigo in cerebellopontine angle tumor Patients
Autorzy:
Zarębska-Karpieszuk, Paulina
Bartoszewicz, Robert
Pierchała, Katarzyna
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1401828.pdf
Data publikacji:
2015
Wydawca:
Index Copernicus International
Tematy:
acoustic neuroma
vestibular schwannoma
vertigo
imbalance;cerebellopontine angle tumor;symptoms T
Opis:
Cerebellopontine angle tumors are a group of tumors that originate from the posterior cranial fossa. Most of them are acoustic neuromas arising from the Schwann cell sheath of the vestibular branch of VIII cranial nerve. Those benign tumors usually present with unilateral hearing loss (53–57%), tinnitus (79–82%), and vertigo/imbalance (18–50%). The objective of this study was documentation-based evaluation of 53 out of 96 patients that received surgical treatment in the ENT Department of Medical University in Warsaw during the period from May 2012 to May 2014, with special consideration of vertigo/imbalance in relation to other symptoms. Statictical analysis has shown larger frequency of vertigo/imbalance in patients with mild to moderate hearing loss and positive corelation between the largest diameter of the tumor and the vestibular deficit in VNG (videonystagmography). The corelation of vestibular deficit in VNG and imbalance symptoms was only estabilished in the group with intrameatal localization of the tumor (T1).
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2015, 4, 4; 27-31
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methodology for Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP)
Autorzy:
Glinka, Paulina
Lachowska, Magdalena
Niemczyk, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1400409.pdf
Data publikacji:
2017
Wydawca:
Index Copernicus International
Tematy:
vestibular evoked myogenic potential
sternocleidomastoid muscle
neuroma of VIII nerve
vestibular schwannoma
cerebellopontine angle tumor
hearing loss
vertigo
Opis:
Objective: The aim of this study is to present a methodology of vestibular evoked myogenic potentials registered from sternocleidomastoid muscle (SCM) using skull tap stimulation (Tap-cVEMP) in a patient with cerebellopontine angle tumor (CPAT). Material and methods: A 23-year-old female with CPAT. The methodology of Tap-cVEMP is introduced. The results of VEMP is confronted with surgical information about the tumor. Results: The results of AC-cVEMP and Tap-cVEMP revealed the inferior vestibular nerve bundle to be affected by the tumor with intact superior bundle. Information obtained from VEMP was confirmed during surgery. Conclusion: Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP) may be the useful method in the diagnostics of CPAT. AC-cVEMP and Tap-cVEMP may be helpful to evaluate the functional integrity of both vestibular nerve bundles providing the information about their involvement in the pathological process.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2017, 6, 3; 29-33
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
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