Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 4.267
Filtrar
1.
Medicine (Baltimore) ; 99(40): e21433, 2020 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-33019381

RESUMO

INTRODUCTION: Intradural schwannomas can occur at any level of the spine. According to the literature, approximately 8% of intradural schwannomas occur in the atlantoaxial spine, and these tumors are usually located in the posterolateral or lateral spinal cord. In contrast, tumors in the ventral midline of the spinal cord are relatively rare. PATIENT CONCERNS: A 47-year-old female presented with progressively worsening neck pain and paresthesias in both upper and lower limbs for the past 5 years. DIAGNOSIS: Based on Magnetic Resonance Imaging and histopathological findings, she was diagnosed with ventral midline primary schwannoma of the cervical spinal cord. INTERVENTIONS: The patient was treated with surgical resection. OUTCOMES: Follow-up visit at 2 years after the surgery showed that the patient is neurologically intact and free of disease. CONLUSION: In summary, for the tumors in the ventral midline of the atlantoaxial spinal cord, the preferred treatment is complete surgical resection by the posterior approach compared to the anterior approach, which often improves clinical symptoms or achieves a healing effect.


Assuntos
Neurilemoma/patologia , Neoplasias da Medula Espinal/patologia , Medula Cervical/diagnóstico por imagem , Medula Cervical/patologia , Humanos , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Cervicalgia/etiologia , Neurilemoma/diagnóstico , Neurilemoma/cirurgia , Neoplasias da Medula Espinal/diagnóstico por imagem , Neoplasias da Medula Espinal/cirurgia
2.
J Cancer Res Ther ; 16(3): 641-646, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32719282

RESUMO

Schwannoma, a benign nerve sheath tumor, is quite rare and more so in jawbones. We report a rare case of a plexiform variant of mandibular schwannoma in a 12-year-old female with a swelling in the left mandible. Clinical features were suggestive of dentigerous cyst as a result of missing premolars and canine. Occlusal and panoramic radiography revealed an osteolytic lesion with scalloping margins, bicortical plate expansion, and agenesis of several teeth. Odontogenic keratocyst, central giant cell granuloma, odontogenic myxoma, and ameloblastic fibroma were given as radiological differential diagnoses. Histopathological examination revealed features of plexiform schwannoma which was given as the final diagnosis. The lesion was treated with surgical excision. Although odontogenic cysts/tumors are often thought of in differential diagnosis whenever well-defined radiolucencies in the jaw are encountered, it is prudent to include schwannoma. This exceptional case adds light to the fact that schwannoma should not be overlooked though it is a rare possibility and must be included in differential diagnosis of odontogenic cysts/tumors.


Assuntos
Neoplasias Mandibulares/diagnóstico , Neoplasias/diagnóstico , Neurilemoma/diagnóstico , Radiografia Panorâmica/métodos , Criança , Diagnóstico Diferencial , Feminino , Granuloma de Células Gigantes/diagnóstico , Granuloma de Células Gigantes/diagnóstico por imagem , Granuloma de Células Gigantes/cirurgia , Humanos , Neoplasias Mandibulares/diagnóstico por imagem , Neoplasias Mandibulares/cirurgia , Neoplasias/diagnóstico por imagem , Neoplasias/cirurgia , Neurilemoma/diagnóstico por imagem , Neurilemoma/cirurgia , Cistos Odontogênicos/diagnóstico , Cistos Odontogênicos/diagnóstico por imagem , Cistos Odontogênicos/cirurgia , Tumores Odontogênicos/diagnóstico , Tumores Odontogênicos/diagnóstico por imagem , Tumores Odontogênicos/cirurgia
3.
Artigo em Chinês | MEDLINE | ID: mdl-32668880

RESUMO

Objective: To investigate the clinical manifestation and management strategy of intraparotid facial nerve schwannoma. Methods: The clinical data of 12 patients with parotid schwannoma treated in Henan Cancer Hospital from January 2009 to January 2019 were analyzed retrospectively, including 5 males and 7 females, aged from 23 to 72 years. All the 12 patients complained of a mass in the parotid region, of whom 4 patients had local discomfort and pain, and 6 patients had varying degrees of pain during palpation. Ultrasound examination showed solid mass in parotid region in 8 cases and mixed mass in 4 cases. The treatment methods, the relationship between tumor and facial nerve, the modes of treatments and the nerve functions before and after operation were analyzed and summarized with House-Brackmann grade. Results: All 12 patients received surgical treatment: 8 patients underwent tumor resection plus partial or total superficial parotidectomy, 1 patient underwent tumor resection and total parotidectomy, and 3 patients underwent tumor resection, with 1 patient in whom tumor could not be removed completely due to tumor extention to the skull base. In 9 cases, the tumor occurred in the trunk or main branch of the facial nerve, and there was no facial nerve injury occurred after surgery; in 1 case, the tumor occurred in the terminal branch of the facial nerve, and part of the severe small branches of adhesion were cut off during the operation; in 1 case, the total trunk of the facial nerve was not found and the broken end of the nerve could not be found during the operation, so the nerve transplantation was not performed. In 1 case, nerve grafting was performed after nerve transection because it was impossible to separate the trunk of the facial nerve from the tumor during the operation. Preoperatively, House-Brackmann grade (H-B)Ⅰfacial nerve function was shown in 10 patients, H-BⅡ in 1 patient and H-B Ⅴin 1 patient. Postoperatively, the facial nerve function recovered to H-B Ⅰfor 7 patients, H-B Ⅱfor 2 patients, H-B Ⅲ for 1 patient, grade Ⅳ for 1 patient with nerve transplantation, and H-B Ⅴfor 1 patient with a revised surgery due to tumor recurrence. Conclusions: The intraparotid facial nerve schwannoma is rare, and it is easy to be misdiagnosed before operation. Surgery is a main treatment for intraparotid facial nerve schwannoma. Attention should be paid to the protection of facial nerve during operation.


Assuntos
Neoplasias dos Nervos Cranianos , Doenças do Nervo Facial , Neurilemoma , Neoplasias Parotídeas , Adulto , Idoso , Neoplasias dos Nervos Cranianos/diagnóstico , Neoplasias dos Nervos Cranianos/cirurgia , Nervo Facial/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Neurilemoma/diagnóstico , Neurilemoma/cirurgia , Neoplasias Parotídeas/diagnóstico , Neoplasias Parotídeas/cirurgia , Estudos Retrospectivos , Adulto Jovem
5.
S D Med ; 73(4): 150-151, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32445301

RESUMO

INTRODUCTION: Schwannomas are benign neurogenic tumors that make up less than 1 percent of all gastrointestinal tumors. Schwannoma can occur along peripheral nerves anywhere throughout the body. Gastrointestinal schwannoma is relatively rare and most commonly occurs in the stomach, small intestine, and colon, respectively. There have only been a handful of case reports describing appendiceal schwannomas. Approximately 30-50 percent of appendicular tumors show clinical symptoms and signs similar to those of appendicitis. CASE REPORT: A 36-year-old male presented initially for right lower quadrant pain of one day duration. He denied any other associated symptoms. CT imaging of abdomen and pelvis showed a fluid-filled and dilated appendix with fat stranding consistent with appendicitis. He underwent laparoscopic appendectomy without complication. The pathology report showed a well-defined proliferation of bland uniform cells that contained small smooth nuclei and abundant foamy cytoplasm at the tip of the appendix. Scattered eosinophils were noted. These neoplastic cells were positive for S100 and negative for CD68, CD34, and CD117, most consistent with a schwannoma. DISCUSSION: Diagnosing appendiceal schwannoma pre-operatively is a challenging task due to the rare nature of the tumors and the lack of clinical features to separate it from other appendiceal pathology. Appendiceal schwannomas are benign but it is unclear if malignant transformation is possible if left untreated. While there are currently no agreed upon treatment guidelines for appendiceal schwannoma, it is currently thought that complete surgical resection is the best treatment while chemotherapy and radiotherapy are not effective.


Assuntos
Apendicectomia , Apendicite , Laparoscopia , Neurilemoma , Doença Aguda , Adulto , Apendicite/cirurgia , Humanos , Achados Incidentais , Masculino , Neurilemoma/diagnóstico
8.
Rev. esp. patol ; 53(1): 37-41, ene.-mar. 2020. ilus
Artigo em Espanhol | IBECS | ID: ibc-195574

RESUMO

Actualmente, la mayoría de las neoplasias presentes en el estómago son de tipo epitelial, constituyendo el subtipo más frecuente. El siguiente subtipo de tumor más común es el estromal, siendo el tumor del estroma gastrointestinal el más frecuente, seguido por el leiomioma y el schwannoma. En el presente artículo mostramos el caso excepcional de un paciente con un tumor del estroma gastrointestinal y sospecha de enfermedad residual gástrica, la cual fue diagnosticada posteriormente como schwannoma tras su exéresis


The majority of gastric neoplasms are of epithelial type. Stromal tumours are the next most frequent and are most commonly gastrointestinal stromal tumours, followed by leiomyoma and schwannoma. We present an exceptional case of a patient with a gastrointestinal stromal tumour with suspicion of residual gastric disease, which was diagnosed post-operatively as a schwannoma


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Tumores do Estroma Gastrointestinal/diagnóstico , Neurilemoma/diagnóstico , Neurofibromatoses/diagnóstico , Tumores do Estroma Gastrointestinal/patologia , Neurilemoma/patologia , Neurofibromatoses/patologia
11.
Medicine (Baltimore) ; 99(3): e18797, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32011482

RESUMO

RATIONALE: Schwannomas are neoplasms that originate from Schwann cells of the peripheral nerve sheath with a low malignant potential. Considering that Schwannomas often occur in the upper extremities, trunk, head, and neck, but in the hepatoduodenal ligament has seldom been reported. PATIENT CONCERNS: A 70-year-old man was referred to our hospital for further evaluation of distension in upper abdomen. Abdominal ultrasonography reported that an anechoic mass was found between the pancreatic head and portal vein, which was measured to be about 5.5 × 4 × 4 cm. No blood flow signal was found within the mass by color doppler ultrasound. Subsequently, abdominal contrast enhanced computed tomography revealed that a well-defined round soft-tissue was above the pancreatic head and adjacent to the common heapatic artery, and it had no obvious enhancement in the arterial phase and portal phase. DIAGNOSES: Schwannomas in the hepatoduodenal ligament. INTERVENTIONS: After the work-up of a multidisciplinary team, a right complete excision was carried out and schwannoma was diagnosed by pathology. OUTCOMES: The patient's postoperative course was uneventful, and he left the hospital 10 days after the operation. Additionally, at the time of writing, recurrence was not observed with a follow-up of 17 months. LESSONS: schwannomas in the hepatoduodenal ligament are extremely rare with benign behavior. Surgical resection is the gateway to cure it; however, accurate preoperative diagnosis of the schwannomas in the hepatoduodenal ligament is a huge challenge because neither the clinical symptoms nor the imaging manifestations are specific.


Assuntos
Neurilemoma/diagnóstico , Neurilemoma/cirurgia , Neoplasias Peritoneais/diagnóstico , Neoplasias Peritoneais/cirurgia , Idoso , Duodeno , Humanos , Fígado , Masculino , Neurilemoma/patologia , Neoplasias Peritoneais/patologia
12.
Ann Ital Chir ; 92020 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-31957705

RESUMO

Ancient Schwannoma is a type of peripheral neurogenic tumor formed by the Schwann cells presenting mainly as a benign and asymptomatic lesion. The neurilemmoma tumor appears in different sites and, in cases of cervical location, can mimic a carotid body tumor. Herein we describe a clinical case of a 51-year-old woman with latero-cervical swelling. A contrast-enhanced computed tomography scan revealed a classical wineglass image mimicking a carotid body tumor. During surgery the tumor appeared connected to the cervical sympathetic trunk without carotid involvement. The histological exam confirmed the nature of the mass which consisted of an ancient schwannoma. A subsequent systematic review of the literature on ancient schwannoma incidence and treatment confirms it being a benign and rare lesion primarily treatable with open surgery. KEY WORDS: Ancient Schwannoma, Carotid body tumor, Carotid artery, Vascular surgery.


Assuntos
Tumor do Corpo Carotídeo/diagnóstico , Neurilemoma/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Pessoa de Meia-Idade
13.
No Shinkei Geka ; 48(1): 71-77, 2020 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-31983691

RESUMO

A 67-year-old male presenting with left exophthalmos and progressive visual disturbance was referred to our department. Tumors at the supraclavicular fossa and dorsal femoral region were resected at ages 27 and 45 years. His father and son had both been diagnosed with spinal tumors, and his son's tumor was pathologically diagnosed as a schwannoma. Brain MRI of his son demonstrated no intracranial tumor. Brain MRI of the patient revealed a multilobular tumor of 2 cm diameter compressing the optic nerve medially within the left muscle cone, and no other intracranial tumors. However, large masses lateral to the pharynx and intercostal nerve, as well as multiple spinal tumors were detected. Transcranial total resection of the intraorbital tumor was performed. The pathological diagnosis was consistent with a schwannoma. These clinical characteristics fulfilled the diagnostic criteria of familial schwannomatosis. The postoperative course was uneventful. His visual dysfunction and eye movement disorder resolved completely. The intraorbital tumor was believed to originate from the lacrimal nerve. Sequencing of all exons for SMARCB1 and LZTR1 using DNA extracted from the tumor did not reveal any mutations. This case is the third report on familial schwannomatosis in Japan.


Assuntos
Neurilemoma , Neurofibromatoses , Neoplasias Orbitárias , Neoplasias Cutâneas , Idoso , Humanos , Japão , Masculino , Neurilemoma/diagnóstico , Neurilemoma/cirurgia , Neurofibromatoses/diagnóstico , Neurofibromatoses/cirurgia , Neoplasias Orbitárias/diagnóstico , Neoplasias Orbitárias/cirurgia , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/cirurgia
14.
Isr Med Assoc J ; 22(1): 53-59, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31927807

RESUMO

BACKGROUND: Primary retroperitoneal neoplasms (PRN) arise from diverse retroperitoneal tissues. Soft tissue sarcomas (STS) comprise the majority and are well studied. Other non-sarcomatous PRN are very rare and less familiar. OBJECTIVES: To evaluate the clinicopathologic and radiologic features of non-sarcomatous PRN, as well as the outcome of complete tumor resection (TR). METHODS: Retrospective data were collected on consecutive patients (June 2006 to January 2015) who underwent resection of retroperitoneal lesions at our department. Final pathology of non-sarcomatous PRN was included. RESULTS: The study population included 36 patients (26% with PRN). PRN were neurogenic (17%), fat-containing (3%), and cystic (6%). The preoperative diagnosis was correct in only 28%. All patients underwent TR via laparotomy (72%) or laparoscopy (28%), for mean operative time of 120 ± 46 minutes. En bloc organ resection was performed in 11%. Complete TR was achieved in 97%. Intra-operative spillage occurred in 8%. Intra-operative, 90-day postoperative complications, and mortality rates were 11%, 36%, and 0%, respectively. The mean length of stay was 6.5 ± 5.5 days. The median overall survival was 53 ± 4.9 months. CONCLUSIONS: Familiarity with radiologic characteristics of PRN is important for appropriate management. Counter to STS, other PRN are mostly benign and have an indolent course. Radical surgery is not required, as complete TR confers good prognosis. Expectant management is reserved for small, asymptomatic, benign neoplasms.


Assuntos
Neoplasias Retroperitoneais/diagnóstico , Idoso , Feminino , Ganglioneuroma/diagnóstico , Ganglioneuroma/diagnóstico por imagem , Ganglioneuroma/patologia , Ganglioneuroma/cirurgia , Humanos , Lipoma/diagnóstico , Lipoma/diagnóstico por imagem , Lipoma/patologia , Lipoma/cirurgia , Masculino , Pessoa de Meia-Idade , Neurilemoma/diagnóstico , Neurilemoma/diagnóstico por imagem , Neurilemoma/patologia , Neurilemoma/cirurgia , Neurofibroma/diagnóstico , Neurofibroma/diagnóstico por imagem , Neurofibroma/patologia , Neurofibroma/cirurgia , Paraganglioma/diagnóstico , Paraganglioma/diagnóstico por imagem , Paraganglioma/patologia , Paraganglioma/cirurgia , Neoplasias Retroperitoneais/diagnóstico por imagem , Neoplasias Retroperitoneais/patologia , Neoplasias Retroperitoneais/cirurgia , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
15.
J Clin Neurosci ; 74: 232-234, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31917057

RESUMO

Among peripheral nerve sheath tumors, epineural glomus tumors represent a rare differential diagnosis for peripheral nerve schwannoma, displaying the same appearance on MRI. Here we present the case of a 68-year-old man complaining of pain in the left forearm, with paresthesias in the first three fingers. MRI demonstrated a round mass along the course of the posterior interosseous nerve with homogeneous contrast enhancement. Complete surgical removal successfully relieved the symptoms. Pathological analysis led to the diagnosis of glomus tumor of uncertain malignant potential. This is to our knowledge the first reported case of epineural glomus tumor of the radial nerve.


Assuntos
Tumor Glômico/diagnóstico , Tumor Glômico/patologia , Nervo Radial/patologia , Idoso , Diagnóstico Diferencial , Antebraço/patologia , Humanos , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neoplasias da Bainha Neural/diagnóstico , Neoplasias da Bainha Neural/patologia , Neurilemoma/diagnóstico , Dor/diagnóstico
16.
World Neurosurg ; 134: 555-559, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31778833

RESUMO

BACKGROUND: Schwannomas are the most common benign tumors in the intraspinal location, with slow-growing and nonaggressive features. Calcification is not a common histopathological and radiological feature in schwannoma. CASE DESCRIPTION: We report the case of a 43-year-old man with soreness in the lower back, left buttock, and lower limb of 1 month's duration. On magnetic resonance imaging and computed tomography, an intradural mass with extensive calcification was found at the L1-L2 level. The tumor was completely resected, with sacrifice of 1 nerve root. Postoperatively, his symptoms were relieved, and no dysfunction of the lower limbs and sphincter was observed. Pathologically, the tumor was diagnosed as a schwannoma with extensive calcification. At the 7-month follow-up examination, no complaints were found. CONCLUSION: Although intraspinal schwannoma with extensive calcification is rare, which increases the difficulty of an accurate diagnosis preoperatively, the tumor can be completely removed with or without excision of the nonfunctional nerve roots.


Assuntos
Calcinose/cirurgia , Vértebras Lombares/cirurgia , Neurilemoma/cirurgia , Raízes Nervosas Espinhais/cirurgia , Adulto , Calcinose/complicações , Calcinose/diagnóstico , Humanos , Vértebras Lombares/patologia , Masculino , Neurilemoma/complicações , Neurilemoma/diagnóstico , Período Pós-Operatório , Tomografia Computadorizada por Raios X/métodos
17.
Diagn Cytopathol ; 48(3): 228-233, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31743600

RESUMO

Pseudoglandular schwannoma (PGS) is a rare morphological variant of benign schwannoma. PGS is quite distinct from the somewhat better characterized glandular schwannoma variant. PGS is characterized by the presence of gland-like structures lined with pseudocolumnar or cuboidal-like neoplastic Schwann cells lining variably sized cystic space cells. Herein, we describe a rare case of PGS in a 17-year-old adolescent boy with a neck mass 8.5 cm in diameter present for 2 years with a recent increase in size. Fine-needle aspiration (FNA) demonstrated abundant rhabdoid-like cuboidal cells, plasmacytoid cells, binucleation, clusters of round to oval cells with scant cytoplasm, and a lack of stromal cells with spindle or oval nuclei. These findings were challenging and were reminiscent of alveolar rhabdomyosarcoma on FNA. Magnetic resonance imaging was also suggestive of malignancy. However, the histologic picture and the immunohistochemical analysis of the resected mass were consisted with PGS. The numerous rhabdoid-like cuboidal neoplastic Schwann cells with a plasmacytoid appearance, paving cystic spaces, and the lack of blunt-ended proliferating stromal cells on smears mimicked alveolar rhabdomyosarcoma on FNA. To our knowledge, cytological features of PGS have not been previously reported. This is the first published report of an unusual PGS case located in the neck region causing a diagnostic dilemma on cytology.


Assuntos
Neoplasias de Cabeça e Pescoço , Neurilemoma , Rabdomiossarcoma Alveolar , Células de Schwann , Adolescente , Biópsia por Agulha Fina , Diagnóstico Diferencial , Neoplasias de Cabeça e Pescoço/diagnóstico , Neoplasias de Cabeça e Pescoço/metabolismo , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Neurilemoma/diagnóstico , Neurilemoma/metabolismo , Neurilemoma/patologia , Rabdomiossarcoma Alveolar/diagnóstico , Rabdomiossarcoma Alveolar/metabolismo , Rabdomiossarcoma Alveolar/patologia , Células de Schwann/metabolismo , Células de Schwann/patologia
18.
Gastrointest Endosc ; 91(1): 172-177.e2, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31539527

RESUMO

BACKGROUND AND AIMS: EUS elastography is a real-time imaging technique that analyzes tissue elasticity. The aim of this study was to investigate the applicability of quantitative EUS elastography in the differential diagnosis of gastric subepithelial tumors (SETs). METHODS: We prospectively registered 41 consecutive patients with gastric SETs and measured their strain ratios with EUS elastography. The strain ratios of gastric SETs were compared with the histopathologic diagnosis. RESULTS: Thirty-one patients (mean age, 51.4 ± 12.6 years) were included in the analysis. The mean size of the SETs was 2.3 ± 0.7 cm. Lipomas had the lowest strain ratio of 1.6 (1.1-2.0), followed by leiomyomas 6.0 (2.0-29.0), ectopic pancreas 11.8 (1.7-29.3), gastrointestinal stromal tumors (GISTs) 51.1 (29.0-67.0), and schwannomas 62.0. With a cut-off value of 22.7, EUS elastography could differentiate GISTs from leiomyomas with sensitivity and specificity of 100% and 94.1%, respectively (P = .001; 95% confidence interval, 0.979-1.000). CONCLUSIONS: EUS elastography could be a promising diagnostic adjunct for the assessment of gastric SETs, especially in differentiating GISTs from leiomyomas.


Assuntos
Técnicas de Imagem por Elasticidade , Endossonografia , Tumores do Estroma Gastrointestinal/diagnóstico por imagem , Tumores do Estroma Gastrointestinal/patologia , Neoplasias Gástricas/diagnóstico por imagem , Neoplasias Gástricas/patologia , Adulto , Idoso , Coristoma/diagnóstico , Diagnóstico Diferencial , Estudos de Viabilidade , Feminino , Humanos , Leiomioma/diagnóstico , Lipoma/diagnóstico , Masculino , Pessoa de Meia-Idade , Neurilemoma/diagnóstico , Pâncreas , Projetos Piloto , Sensibilidade e Especificidade , Neoplasias Gástricas/diagnóstico
19.
World Neurosurg ; 134: 145-149, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31589985

RESUMO

BACKGROUND: Intraventricular schwannoma is extremely rare, with only 35 cases reported to date in the literature. Consequently, its etiology and pathogenesis are still unclear, and therefore require further investigations. Here, we report on and discuss a rare case of intraventricular schwannoma to elucidate on this matter. CASE DESCRIPTION: A 26-year-old man was admitted to our institution with a 1-month history of headaches and left hemianopsia. At diagnosis, magnetic resonance imaging of the brain revealed a well-demarcated mass with surrounding edema in the right lateral ventricle. Total resection of the tumor was performed by a transsulcal approach through the right parietal lobe. In surgery, it was observed that the tumor was attached to the choroid plexus without invading the wall of the right lateral ventricle. The respective histologic examination confirmed the diagnosis of intraventricular schwannoma. Six months after the surgery, there was no recurrence. Additionally, during this follow-up period, the patient did not develop any neurologic deficit, including visual field narrowing or parietal symptoms, such as acalculia and right-left, finger, and space agnosias. CONCLUSIONS: Although intraventricular schwannomas are rare, 35 cases have already been reported to date. We emphasize the importance of diagnosing such cases correctly to increase knowledge on the origin and pathogenesis of intraventricular tumors, which would facilitate disease management.


Assuntos
Neoplasias do Ventrículo Cerebral/diagnóstico , Neurilemoma/diagnóstico , Adulto , Neoplasias do Ventrículo Cerebral/patologia , Neoplasias do Ventrículo Cerebral/cirurgia , Humanos , Masculino , Neurilemoma/patologia , Neurilemoma/cirurgia
20.
HNO ; 68(10): 787-790, 2020 Oct.
Artigo em Alemão | MEDLINE | ID: mdl-31641799

RESUMO

Neurinomas in the nose and the nasal sinuses are rare. In the present work, we present an exceedingly rare case of a disfiguring neurinoma involving the nasal columella. Treatment of choice is complete resection of the tumor. For an optimal view for tumor resection and esthetic and functional reconstruction, we recommend an open surgical approach.


Assuntos
Neurilemoma , Nariz , Rinoplastia , Cóclea , Estética , Humanos , Septo Nasal , Neurilemoma/diagnóstico , Neurilemoma/cirurgia , Nariz/patologia , Nariz/cirurgia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA