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Swami P, Raval R, Kumawat V, Nyklesh V. Maxillary schwannoma - A case report of a rare tumor. Natl J Maxillofac Surg 2019; 10:245-248. [PMID: 31798266 PMCID: PMC6883876 DOI: 10.4103/njms.njms_1_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/28/2016] [Accepted: 02/18/2019] [Indexed: 11/19/2022] Open
Abstract
Schwannoma or neurilemmoma is a neurogenic tumor. Intraoral schwannoma is rare and intraosseous schwannoma involving maxilla is even rare. We present one such rare case of maxillary sinus schwannoma extending to the nasal cavity, infratemporal fossa in a 22-year-old male. Wide excision of the lesion with subtotal maxillectomy of the right side was done using Weber–Fergusson approach. The patient made a good postoperative recovery. The relevant literature on the presentation, radiology, and management of schwannoma of maxillary sinus is discussed.
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Affiliation(s)
- Pushpchander Swami
- Department of Oral and Maxillofacial Surgery, Maharaja Ganga Singh Dental College and Research Centre, Rajasthan, India
| | - Rushik Raval
- Class II Dental Surgeon, Referral Hospital, Limzar, Gujarat, India
| | - Vinod Kumawat
- Department of Oral and Maxillofacial Surgery, Maharaja Ganga Singh Dental College and Research Centre, Rajasthan, India
| | - V Nyklesh
- Consultant Endodontist, Chennai, India
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2
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Vengaloor Thomas T, Abraham A, Bhanat E, Al Hmada Y, Albert A, Vijayakumar S, Stinger SP, Packianathan S. Malignant peripheral nerve sheath tumor of nasal cavity and paranasal sinus with 13 years of follow-up-A case report and review of literature. Clin Case Rep 2019; 7:2194-2201. [PMID: 31788278 PMCID: PMC6878039 DOI: 10.1002/ccr3.2465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/09/2019] [Accepted: 09/01/2019] [Indexed: 12/11/2022] Open
Abstract
Although extremely rare, sarcomas including malignant peripheral nerve sheath tumors should be considered in the differential diagnosis of sino-nasal tract lesions. Long-term cure is possible through definitive operative management followed by adjuvant therapy.
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Affiliation(s)
- Toms Vengaloor Thomas
- Department of Radiation OncologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Anu Abraham
- Department of PathologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Eldrin Bhanat
- Department of Radiation OncologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Youssef Al Hmada
- Department of PathologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Ashley Albert
- Department of Radiation OncologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Srinivasan Vijayakumar
- Department of Radiation OncologyUniversity of Mississippi Medical CenterJacksonMississippi
| | - Scott P. Stinger
- Department of Otolaryngology and Communicative SciencesUniversity of Mississippi Medical CenterJacksonMississippi
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Gallo A, Suriano M, Simonelli M, Ralli G, De Vincentiis M. Recurrent Malignant Schwannoma of the Parapharyngeal Space in Neurofibromatosis Type 1. EAR, NOSE & THROAT JOURNAL 2019. [DOI: 10.1177/014556130308201112] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Andrea Gallo
- From the Department of Otolaryngology, La Sapienza University, Rome
| | - Maria Suriano
- From the Department of Otolaryngology, La Sapienza University, Rome
| | | | - Giovanni Ralli
- From the Department of Otolaryngology, La Sapienza University, Rome
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Li Q, Pan H, Li L, Cao J. Malignant peripheral nerve sheath tumor of the nasal cavity and nasopharynx in a child: A case report. Medicine (Baltimore) 2019; 98:e14223. [PMID: 30681599 PMCID: PMC6358413 DOI: 10.1097/md.0000000000014223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
RATIONALE Malignant peripheral nerve sheath tumors (MPNSTs) are rare neoplasms with only a few reported cases affecting the nasal cavity, paranasal sinuses, and anterior skull base. PATIENT CONCERNS A 12-year-old girl with a mass in her nose was admitted to the Department of Otorhinolaryngology of Shenzhen Children's Hospital. She had a 4-month history of progressive, unilateral right nasal obstruction, unilateral mucopurulent rhinorrhea, foul nasal odor, snoring, hyposmia, occasional epistaxis, and no headache, no facial numbness, without eye swelling and vision loss. DIAGNOSE A computed tomography (CT) scan of the paranasal sinuses showed a mass (right inflammatory polyp and calcification) involving the nasal cavity, the right maxillary sinusitis, ethmoid sinusitis. There was no nasal septum, orbital, or skull base involvement. On the basis of pathological and immunohistological findings, the tumor was diagnosed as an MPNST with heterogeneous components (cartilage and bone) mesenchymal differentiation after the operation. INTERVENTIONS The girl was treated by surgery and chemotherapy. OUTCOMES The postoperative course was uneventful. There was no recurrence observed during the 3-year follow-up. LESSONS The primary MPNST in the nasal cavity is rare, if nasal neoplasms do not respond well to vasoconstrictors and glucocorticoids in children, the possibility of a tumor should be considered. If new organisms grow rapidly with hemorrhagic necrosis, the possibility of a malignant tumor is greater.
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Affiliation(s)
- Qian Li
- Zunyi Medical University, Zunyi, Guizhou
- Department of Otolaryngology, Shenzhen Children's Hospital, Shenzhen, Guangdong
| | - Hongguang Pan
- Department of Otolaryngology, Shenzhen Children's Hospital, Shenzhen, Guangdong
| | - Lan Li
- Department of Otolaryngology, Shenzhen Children's Hospital, Shenzhen, Guangdong
| | - Juan Cao
- Department of Radiology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
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5
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Gencarelli J, Rourke R, Ross T, Gravel DH, Purgina B, Jordan D, Agbi C, Kilty SJ. Atypical presentation of sinonasal cellular schwannoma: a nonsolitary mass with osseous, orbital, and intracranial invasion. J Neurol Surg Rep 2014; 75:e144-8. [PMID: 25083375 PMCID: PMC4110123 DOI: 10.1055/s-0034-1376424] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 04/03/2014] [Indexed: 11/24/2022] Open
Abstract
Objective Sinonasal cellular schwannoma represents < 4% of head and neck schwannomas. These benign tumors are typically confined to the nasal cavity or ethmoid sinus. We describe an atypical case of sinonasal cellular schwannoma with diffuse paranasal sinus involvement and both intraorbital and intracranial extension. Results A 62-year-old woman presented with a 6-month history of right orbital proptosis and right-sided headache. Subsequent imaging revealed an invasive paranasal sinus mass extending through the skull base and displacing the right orbit. Preoperative biopsies were not diagnostic but revealed a spindle cell lesion suspicious for malignancy based on lack of encapsulation, infiltration of the sinonasal submucosa, and osseous invasion. The patient underwent open skull base surgery, and pathology confirmed a S100-positive nonencapsulated cellular schwannoma. Conclusion An atypical case of sinonasal cellular schwannoma with intracranial extension is reported. Its presentation is contrary to the common view that these are isolated solitary lesions of the nasoethmoid region. We suggest that sinonasal cellular schwannoma be considered in the differential diagnosis of a poorly defined invasive paranasal sinus mass, particularly following biopsy.
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Affiliation(s)
- John Gencarelli
- Department of Otolaryngology - Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada
| | - Ryan Rourke
- Department of Otolaryngology - Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada ; The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Tracey Ross
- Department of Otolaryngology - Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada ; The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Denis H Gravel
- The Ottawa Hospital, Ottawa, Ontario, Canada ; Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Bibianna Purgina
- The Ottawa Hospital, Ottawa, Ontario, Canada ; Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - David Jordan
- The Ottawa Hospital, Ottawa, Ontario, Canada ; Department of Ophthalmology, University of Ottawa, Ottawa, Ontario, Canada
| | - Charles Agbi
- The Ottawa Hospital, Ottawa, Ontario, Canada ; Division of Neurosurgery, University of Ottawa, Ottawa, Ontario, Canada
| | - Shaun J Kilty
- Department of Otolaryngology - Head and Neck Surgery, University of Ottawa, Ottawa, Ontario, Canada ; The Ottawa Hospital, Ottawa, Ontario, Canada ; The Ottawa Hospital Research Institute (OHRI), Ottawa, Ontario, Canada
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6
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Hazarika P, Nayak DR, Pujary K, Rao L. Schwannoma of the nose and paranasal sinuses. Indian J Otolaryngol Head Neck Surg 2012; 55:34-8. [PMID: 23119934 DOI: 10.1007/bf02968752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Sckhwannoma is a benign tumor arising from the Schwann cells of nerve sheath.Through they arise more commonly in the head and neck than other regions, a through search in the liturature including medline revealed only about 47 reported cases of schwannoma in the paranasal sinuses of which the maxillary sinus involvement is more common. We report three cases of schwannoma arising from unusual sites in the paranasal sinuses with different modes of presttation each requiring a specific approach for surgical excision Transnasal endoscopic approach in combination with vonventional approaches is of immense value in the surgical management of these benign lessions of the paranasal sinuses.
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Affiliation(s)
- P Hazarika
- Department of ENT-Head & Neck Surgery, Kasturba Medical College, 576 119 Manipal, Karnataka, India
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Pfeiffer J, Arapakis I, Boedeker CC, Ridder GJ. Malignant peripheral nerve sheath tumour of the paranasal sinuses and the anterior skull base. J Craniomaxillofac Surg 2008; 36:293-9. [PMID: 18362076 DOI: 10.1016/j.jcms.2007.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Accepted: 11/02/2007] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Malignant peripheral nerve sheath tumours (MPNSTs) are highly aggressive neoplasms with a marked propensity for local recurrence and metastatic spread. The management of MPNSTs continues to challenge pathologists and surgeons. As MPNSTs of the paranasal sinuses and the skull base are rare, prognostic factors and treatment modalities have not been consistently identified. PATIENTS AND METHODS We present a case of MPNST of the anterior skull base and provide an overview of all MPNSTs reported since 1970, in which the tumour location was the anterior skull base or the paranasal sinuses. RESULTS Literature review revealed 33 well-documented cases of MPNSTs in this anatomic location. These cases were analysed with emphasis on age, gender, affected site, therapy, outcome, presence of neurofibromatosis, local recurrence and metastases. CONCLUSIONS Despite multimodal therapy and advances in surgical techniques, the prognosis of MPNST located in the paranasal sinuses and the anterior skull base remains dismal. Outcome is mainly a function of local control by surgical resection. Adjuvant radiochemotherapy has shown no benefit. It may therefore be advisable to abstain from radiochemotherapy in order to improve chances for surgical intervention in case of recurrent disease. Close follow-up investigations are indispensable.
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Affiliation(s)
- Jens Pfeiffer
- Department of Otorhinolaryngology - Head and Neck Surgery, University Medical School Freiburg, Germany.
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Khademi B, Owji SM, Khosh KJ, Mohammadianpanah M, Gandomi B. Description of a neural sheath tumor of the trigeminal nerve: immunohistochemical and electron microscopy study. SAO PAULO MED J 2006; 124:333-5. [PMID: 17322954 DOI: 10.1590/s1516-31802006000600006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 10/17/2006] [Indexed: 11/21/2022] Open
Abstract
CONTEXT Malignant neural sheath tumors of the trigeminal nerve affecting the nasal cavity and the paranasal sinuses are extremely rare. With conventional optical microscopy, their identification is difficult, and it is necessary to confirm them by means of electron microscopy and immunohistochemical techniques. CASE REPORT The patient was a 41-year-old woman with a ten-month progressive history of pain followed by painful edema in the left facial region, and with symptoms of bleeding, secretion and nasal obstruction. Studies with imaging methods suggested the presence of an expansive process in the left nasal and paranasal cavities. In the biopsy, the histopathological findings from optical microscopy were suggestive of a tumor of neural origin in the trigeminal nerve. Immunohistochemical and electron microscopy studies confirmed that it was a malignant tumor of the neural sheath of the trigeminal nerve. We describe the clinical, radiological, and histological features of this tumor and review the literature.
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Affiliation(s)
- Bijan Khademi
- Department of Otolaryngology-Head and Neck Surgery, Khalili Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
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Cinar C, Arslan H, Ogur S, Kilic A, Bingol UA, Yucel A. Free Rectus Abdominis Myocutaneous Flap With Anterior Rectus Sheath to Provide the Orbital Support in Globe-Sparing Total Maxillectomy. J Craniofac Surg 2006; 17:986-91. [PMID: 17003630 DOI: 10.1097/01.scs.0000234979.69368.79] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Reconstruction after total maxillectomy with preservation of the orbital contents is technically more challenging than when the maxillectomy is combined with orbital exenteration. It results in severe complications if the orbital content is not supported. We would like to introduce a new technique using free rectus abdominis myocutaneous (RAM) flap with anterior rectus sheath to support the orbital content in a patient who underwent globe-sparing total maxillectomy. The large resection of the recurrent maxillary peripheral nerve sheath tumor was performed in a 34-year-old male patient. Right free RAM flap was harvested simultaneously with the tumor resection. The anterior sheath of upper portion of the rectus muscle was also incorporated into the flap. The free edge of the upper anterior rectus sheath was anchored to three different points: Lateral rim, medial rim and the posterior remnant of the bony orbital floor with non-absorbable suture. Consequently, orbital support was achieved with well-vascularized, thin, strong fascia with smooth surface. Right facial artery and vein were chosen as recipient vessel. Duration of the operation was 5.5 hours. Postoperative period was uneventful. Six months after the surgery, the right eye was in good position without inferior dystopia. Eyeball movement could be done without restriction. The patient also denied diplopia. Reconstruction of globe-sparing total maxillectomy defects with free RAM flap with anterior rectus sheath has several advantages that enable the reconstructive surgeon to solve the multiple complex reconstructive task with one flap: 1) elimination of the secondary donor site morbidity; 2) more simply addressing the challenging task of the eye support than the other techniques; 3) obliterating the maxillectomy defect and closing the palate; 4) restoring the large skin defect; and 5) reducing the operation time. It is difficult to conclude that this technique is the best choice in such cases based on a report of the single case. However, presented technique should be kept in mind as a practical and effective reconstructive option in cases that have underwent the total maxillectomy with the preservation of the orbit.
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Affiliation(s)
- Can Cinar
- Istanbul University Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey.
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11
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Buob D, Wacrenier A, Chevalier D, Aubert S, Quinchon JF, Gosselin B, Leroy X. Schwannoma of the sinonasal tract: a clinicopathologic and immunohistochemical study of 5 cases. Arch Pathol Lab Med 2003; 127:1196-9. [PMID: 12946223 DOI: 10.5858/2003-127-1196-sotsta] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Peripheral nerve sheath tumors are soft tissue neoplasms rarely encountered in the nasal cavity and paranasal sinuses. OBJECTIVE To describe the clinicopathologic and immunohistochemical features of a series of schwannomas of the sinonasal tract. DESIGN Surgical pathology files were searched for the diagnosis "sinonasal schwannoma." All histologic documents and clinical data were reviewed. Immunohistochemistry was performed on paraffin-embedded tissue with antibodies to S100 protein, epithelial membrane antigen, CD34, and MIB-1. RESULSTS: Five cases of sinonasal schwannoma were retrieved; patients included 3 women and 2 men, aged 20 to 56 years. Three cases were located in the ethmoid sinus. Clinical symptoms were nonspecific (nasal obstruction, epistaxis, and anosmia). All tumors were treated with conservative surgical resection. Pathologic examination showed a spindle cell proliferation without encapsulation in all cases. No cytologic atypia was seen, and the mitotic activity was low (<3 mitotic figures/10 high-power fields). Immunohistochemistry showed diffuse positivity with S100 protein and negativity with CD34 and epithelial membrane antigen. MIB-1 staining was low (1%-5% of tumor cell nuclei stained). During the follow-up (median, 6 years), no recurrence or metastasis was observed. CONCLUSIONS Schwannoma is a very unusual tumor of the sinonasal tract and is associated with nonspecific symptoms. Histologically, sinonasal schwannomas differ from schwannomas of other locations by their lack of a peripheral capsule and possible ulceration of the epithelial covering. Sinonasal schwannomas are treated with conservative surgical resection and have an excellent prognosis.
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Affiliation(s)
- David Buob
- Department of Pathology, Centre Hospitalier Regional Universitaire de Lille, France
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Reino AJ. Factors in the pathogenesis of tumors of the sphenoid and maxillary sinuses: a comparative study. Laryngoscope 2000; 110:1-38. [PMID: 11037807 DOI: 10.1097/00005537-200010001-00001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES/HYPOTHESIS To explain the processes that lead to the development of tumors in the maxillary and sphenoid sinuses. STUDY DESIGN A 32-year review of the world's literature on neoplasms of these two sinuses and a randomized case-controlled study comparing the normal mucosal architecture of the maxillary to the sphenoid sinus. METHODS Analysis of a 32-year world literature review reporting series of cases of maxillary and sphenoid sinus tumors. Tumors were classified by histological type and separated into subgroups if an individual incidence rate was reported. Histomorphometry of normal maxillary and sphenoid sinus mucosa was performed in 14 randomly selected patients (10 sphenoid and 4 maxillary specimens). Specimens were fixed in 10% formalin, embedded in paraffin, and stained with periodic acid-Schiff (PAS) and hematoxylin. Histomorphometric analysis was performed with a Zeiss Axioscope light microscope (Carl Zeiss Inc., Thornwood, NY) mounted with a Hamamatsu (Hamamatsu Photonics, Tokyo, Japan) color-chilled 3 charge coupled device digital camera. The images were captured on a 17-inch Sony (Sony Corp., Tokyo, Japan) multiscan monitor and analyzed with a Samba 4000 Image Analysis Program (Samba Corp., Los Angeles, CA). Five random areas were selected from strips of epithelium removed from each sinus, and goblet and basal cell measurements were made at magnifications x 100 and x 400. RESULTS The literature review revealed that the number and variety of tumors in the maxillary sinus are much greater than those in the sphenoid. The incidence of metastatic lesions to each sinus is approximately equal. No recognized pattern of spread from any particular organ system could be determined. On histomorphometric study there were no statistically significant differences between the sinuses in the concentration of goblet cells, basal cells, or seromucinous glands. CONCLUSIONS Factors involved in the pathogenesis of tumors of the maxillary and sphenoid sinuses include differences in nasal physiology, embryology, morphology, and topography. There are no significant histological differences in the epithelium and submucous glands between the two sinuses to explain the dissimilar formation of neoplasms.
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Affiliation(s)
- A J Reino
- Manhattan Ear, Nose and Throat Associates, New York, New York 10128, USA
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13
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Maheshwari GK, Baboo HA, Gopal U, Baiar DB, Shah NM. Malignant schwannoma of the sinonasal tract. Indian J Otolaryngol Head Neck Surg 1999; 51:47-50. [PMID: 23119484 DOI: 10.1007/bf02996845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Malignant Schwannoma of the sinonasal tract is an extremely rare tumour. So far, only 19 cases have been reported in the literature. We report herein a case of malignant schwannoma involving nasal cavity, maxillary antrum and ethmoid sinus in a 60-year-old male patient. The patient was treated with surgery and post-operative radiotherapy. He currently remains free of the disease 15 months after the diagnosis and twelve months after completing therapy.
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Affiliation(s)
- G K Maheshwari
- Dept. of Radiation Oncology, The Gujarat Cancer and Research Institute NCH Campus, 380 016 Asarwa, Ahmedabad, India
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14
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Sharma R, Tyagi I, Banerjee D, Pandey R. Nasoethmoid schwannoma with intracranial extension. Case report and review of literature. Neurosurg Rev 1998; 21:58-61. [PMID: 9584288 DOI: 10.1007/bf01111487] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Schwannomas are very rare in the nose and paranasal sinuses; their presence both intra-and extracranially is still rarer. Here we present a case of nasoethmoid schwannoma with intracranial extension into anterior cranial fossa. Clinical, radiological, pathological and operative findings are discussed and the literature is reviewed. We recommend bifrontal craniotomy for removal of intracranial and nasoethmoid extensions of this tumor.
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Affiliation(s)
- R Sharma
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Science, Lucknow, India
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15
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Boyd JH, Dalsaso TA, Bee CS, Smith KR, Martin DS. Subfrontal schwannoma with intracranial mucocele: a case report. Am J Otolaryngol 1997; 18:72-5. [PMID: 9006682 DOI: 10.1016/s0196-0709(97)90053-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- J H Boyd
- Department of Otolaryngology-Head and Neck Surgery, St Louis University Health Science Center, MO 63110-0250, USA
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16
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DiNardo LJ, Rumsey RL. Management of Malignant Schwannomas of the Paranasal Sinuses and Anterior Skull Base. EAR, NOSE & THROAT JOURNAL 1996. [DOI: 10.1177/014556139607500612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The evolution of skull base surgery has facilitated the extirpation of previously unresectable tumors. As experience with skull base surgery increases, the feasibility of resection and long-term outcomes is becoming apparent for the more common lesions. Neoplasms such as malignant schwannomas are rare and, therefore, defy single-institution analysis. The treatment and four-year follow-up of a malignant paranasal sinus and anterior skull base schwannoma is described. Analysis of the literature confirms the low incidence of this tumor and supports the efficacy of skull base surgery in its treatment.
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Affiliation(s)
- Laurence J. DiNardo
- Department of Otolaryngology—Head and Neck Surgery, Medical College of Virginia/Virginia Commonwealth University, Richmond, Virginia
| | - Robert L. Rumsey
- Department of Pathology, Medical College of Virginia/Virginia Commonwealth University, Richmond, Virginia
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17
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Senel Y, Bolulu A, Erdal F, Köybaşioğlu F. Malignant schwannoma located in the retroauricular region. Int J Pediatr Otorhinolaryngol 1995; 33:81-7. [PMID: 7558645 DOI: 10.1016/0165-5876(95)01189-i] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
There have been no reports about malignant Schwannoma located retroauricularly in the medical literature we reviewed. Malignant Schwannoma is a very malignant tumor, which is rare. For diagnosis, microscopic and immunohistochemical studies are needed. It is often seen together with neurofibromatosis. The prognosis is very poor and the only available treatment is surgical excision. Although it is known that both radiotherapy and chemotherapy are not effective, we achieved good outcome with this combination applied postoperatively.
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Affiliation(s)
- Y Senel
- Department of ENT, SSK (Social Security Association) Ankara Hospital, Turkey
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