Two rare schwannomas of head and neck

Serhrouchni, Karima Idrissi; Chbani, Laïla; Hammas, Nawal; Kamal, Dounia; Fatemi, Hinde El; Harmouch, Taoufiq; Alami, N.; Amarti, Afaf

doi:10.1186/1746-1596-9-27

Cited by 23 publications

(12 citation statements)

References 13 publications

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“…Schwannoma originates from peripheral nerve sheath Schwann cells, grow slowly, having a complete envelope and a clear boundary. It usually grows expansively around the nerve, and the nerve bundle does not enter the inside of the tumor [2], it can occur in all parts of the body, most of which occur in the head and neck (25% to 45%) [3] , which is rare in the ear, nose and throat (4%). In this case, nasal endoscopy combined with navigation system was used during operation, improving the accuracy and safety of surgery.…”

Section: Discussionmentioning

confidence: 99%

WITHDRAWN: A Case of Pterygopalatoma with Misdiagnosed as Secretory Otitis Media

Liu

Yan

Zhao

et al. 2021

Preprint

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Objective: This case improves the early etiologic diagnosis of recurrent and refractory secretory otitis media, avoiding missed diagnosis and misdiagnosis.Methods: Collecting the clinical manifestations of this case, fiberoptic otoscopy + fiber nasopharyngoscopy and imaging features.Results: This patient was admitted to the hospital with hearing loss and ear suffocation. He did not find the cause at the beginning of the disease. Before the hospital, he underwent the treatment of tympanic incision and eustachian tube balloon expansion with simple secretory otitis media, but still recurrent, he came into our hospital through imaging and other further examination this time, having the clear cause that the secretory otitis media recurrent episodes due to tumor lesions in the pterygopalatine. Under the general anesthesia, the navigation system assisted the endoscopic sinus combined with the cryo-plasma wing axillary tumor resection, and the right ear tympanic membrane incision was performed under the microscope.Conclusions: Clinicians need to be cautious and consider the causes in order to reduce missed diagnosis and misdiagnosis, and provide early diagnosis and early treatment to improve the quality of life of patients.

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Section: Discussionmentioning

confidence: 99%

WITHDRAWN: A Case of Pterygopalatoma with Misdiagnosed as Secretory Otitis Media

Liu

Yan

Zhao

et al. 2021

Preprint

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“…Schwannomas of head and neck region are typically described as solitary encapsulated lesions that arise in the first o second division of the trigeminal nerve. On the contrary, when these tumors are multiple, they are typically found in Neurofibromatosis type 1, a disease associated to mutation at the NF1 gene [4]. Another form of neurofibromatosis was recently recognized, called schwannomatosis, and a case of bilateral maxillary sinus schwannomas in a patient with this disease was reported very recently in literature [10].…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, differential diagnosis with rare malignant peripheral nerve sheath tumors is necessary. A contrast enhanced CT scan can evaluate the vascularisation of the lesion, but MRI with gadolinium is investigation of choice for identification and examination of the suspected nerve lesions of sinonasal cavity [4]. On an MRI scan, schwannomas appears with an intermediate signal intensity on T1-weighted images, whereas a T2weighted signal varies depending on the tumor structure [17].…”

Section: Discussionmentioning

confidence: 99%

“…Embryologically it originates from neuroectoderm, and typically arises from the branches of the trigeminal nerve or from autonomic nerves in and around paranasal sinuses [2]. In particular, approximately 45% of these tumors occur in this region [3], and most of them arise along the vestibular portion of the eighth cranial nerve [4]. Only 2% to 4% of schwannomas affect the nasal cavity and the paranasal sinuses [3,5], occurring in the middle-aged patients with an equal sex distribution [6].…”

Section: Introductionmentioning

confidence: 99%

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Cystic Schwannoma of the Maxillary Sinus: Clinical and Radiological Findings

et al. 2018

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Schwannomas are common tumors of the nerve sheath that frequently involve the peripheral nerves of the head and neck. This benign slow-growing neoplasm is composed of nerve-supporting cells, and rarely affects the paranasal sinuses. This lesion usually occurs in the middle-aged patients, with an equal sex distribution. Schwannomas are usually solid tumors, although cystic components are rarely seen in head and neck area. MRI can prompt the diagnosis that however relies on histological examination. The present study reports a case of schwannoma of the maxillary sinus, diagnosed in a 38-year-old woman that presented nasal obstruction, pain in the right facial area and hypoesthesia in the area of right infraorbital nerve for past six months. Clinical presentation, radiologic aspects, histological features and treatment of this tumor were reported.

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“…Histologically, schwannomas are characterized by broad interlacing ribbons of extended spindle cells that produce a palisading pattern of nuclei around a central mass of cytoplasm. Detection of S100 is required to establish the neural origin of the tumor ( 4 ). Anatomically, the majority of TSs arise from the Gasserian ganglion and spread to the intradural and epidural cavities ( 5 ).…”

Section: Introductionmentioning

confidence: 99%

Middle cranial fossa trigeminal schwannoma resection through endoscopic transnasal maxillary sinus approach: A case report and literature review

Wang

et al. 2022

Exp Ther Med

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The endoscopic transnasal maxillary sinus approach is usually performed in resecting tumors located in the pterygopalatine fossa and infratemporal fossa, but is rarely used in the resection of lesions in the middle cranial fossa. Because of the complicated anatomical structure of the middle cranial fossa, trigeminal schwannomas (TSs) located in this region are usually dissected through conventional craniotomy surgical approaches; however, the endoscopic transnasal maxillary sinus approach can be used in resection of middle cranial fossa TSs. The current study presented the case of a 59-year-old man who suffered intermittent headaches for 2 years without other notable medical history and neurological abnormalities. The patient was diagnosed with a middle cranial fossa TS. After imaging and assessment of anatomical features, the tumor was totally resected through the transnasal maxillary sinus approach. Following surgery, the symptoms were relieved and the patient returned to a normal life. Light numbness was complained of in the distribution area of the maxillary nerve of the right side of the face, but this was gradually relieved. Combined with a literature review, the present case indicated that the endoscopic transnasal maxillary sinus approach may provide a safer and more direct option for resecting middle cranial fossa lesions, which is worthy of increased clinical application.

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Two rare schwannomas of head and neck

Cited by 23 publications

References 13 publications

WITHDRAWN: A Case of Pterygopalatoma with Misdiagnosed as Secretory Otitis Media

WITHDRAWN: A Case of Pterygopalatoma with Misdiagnosed as Secretory Otitis Media

Cystic Schwannoma of the Maxillary Sinus: Clinical and Radiological Findings

Middle cranial fossa trigeminal schwannoma resection through endoscopic transnasal maxillary sinus approach: A case report and literature review

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