Preauricular Intraparotid Schwannoma

Bagga, Mun Bhawni; Bhatnagar, Dipti; Katoch, Shiva

doi:10.4103/ccd.ccd_519_20

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Additionally, FNAC can help assess the cellular composition of the tumor, such as the presence of spindle cells characteristic of neurofibromas, as well as the presence of any atypical or malignant cells [ 14 ]. Furthermore, immunohistochemical staining can be performed on the obtained samples to confirm the diagnosis and distinguish it from other intra-parotid tumors [ 15 ]. However, it is important to note that FNAC may not always provide a definitive diagnosis, and histopathological examination of the excised tumor is often required for confirmation [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Sporadic neurofibroma of facial nerve presenting as parotid gland tumor: a rare case report

Hassan,

Salih,

Salih

et al. 2024

Journal of Surgical Case Reports

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Intraparotid gland neurofibroma is a rare benign tumor that arises from Schwann cells of the facial nerve within the parotid gland. This case report discusses a 41-year-old woman who experienced a painless preauricular swelling on her right side for over 5 years. Clinical examination and ultrasound revealed a well-defined mass in the parotid gland. The patient underwent total mass excision, resulting in transient facial nerve dysfunction but complete recovery. These tumors often manifest as solitary masses in the parotid region and may compress nearby structures, causing facial paralysis or numbness. Their diagnosis can be challenging due to similarities with other parotid gland tumors and possible associations with neurofibromatosis. Managing intraparotid tumors, including neurofibromas, involves a multidisciplinary approach with input from cytopathologists, radiologists, and surgeons.

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Section: Discussionmentioning

confidence: 99%

Sporadic neurofibroma of facial nerve presenting as parotid gland tumor: a rare case report

Hassan,

Salih,

Salih

et al. 2024

Journal of Surgical Case Reports

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“…Half of the intraparotid segment FNSs are described in the literature as originating in the trunk of the facial nerve, making it virtually impossible to discover the trunk. Peripheral facial paralysis is reported in intraparotid NSF in which only biopsy or even resection was performed with apparent preservation of the nerve due to the individual sensitivity of the facial nerve to dissection and the particularities of nerve microvascularization [ 34 ]. Therefore, even in the conditions of preservation of the facial nerve, after tumor ablation, a reversible peripheral facial paresis is possible under cortisone treatment and group B vitamin therapy ( Figure 24 ).…”

Section: Therapeutic Strategies In the Management Of Fns Extracranial...mentioning

confidence: 99%

Extracranial Facial Nerve Schwannoma—Histological Surprise or Therapeutic Planning?

et al. 2023

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Schwannomas (neurilemomas) are benign, slow-growing, encapsulated, white, yellow, or pink tumors originating in Schwann cells in the sheaths of cranial nerves or myelinated peripheral nerves. Facial nerve schwannomas (FNS) can form anywhere along the course of the nerve, from the pontocerebellar angle to the terminal branches of the facial nerve. In this article, we propose a review of the specialized literature regarding the diagnostic and therapeutic management of schwannomas of the extracranial segment of the facial nerve, also presenting our experience in this type of rare neurogenic tumor. The clinical exam reveals pretragial swelling or retromandibular swelling, the extrinsic compression of the lateral oropharyngeal wall like a parapharyngeal tumor. The function of the facial nerve is generally preserved due to the eccentric growth of the tumor pushing on the nerve fibers, and the incidence of peripheral facial paralysis in FNSs is described in 20–27% of cases. Magnetic Resonance Imaging (MRI) examination is the gold standard and describes a mass with iso signal to muscle on T1 and hyper signal to muscle on T2 and a characteristic “darts sign.” The most practical differential diagnoses are pleomorphic adenoma of the parotid gland and glossopharyngeal schwannoma. The surgical approach to FNSs requires an experienced surgeon, and radical ablation by extracapsular dissection with preservation of the facial nerve is the gold standard for the cure. The patient’s informed consent is important regarding the diagnosis of schwannoma and the possibility of facial nerve resection with reconstruction. Frozen section intraoperative examination is necessary to rule out malignancy or when sectioning of the facial nerve fibers is necessary. Alternative therapeutic strategies are imaging monitoring or stereotactic radiosurgery. The main factors which are considered during the management are the extension of the tumor, the presence or not of facial palsy, the experience of the surgeon, and the patient’s options.

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Utility of 3D double-echo steady-state with water excitation (3D-DESS-WE) in diagnosing intraparotid facial nerve schwannoma: A case report

Sano,

Baba,

Ikeda

et al. 2025

Radiology Case Reports

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Preauricular Intraparotid Schwannoma

Cited by 4 publications

References 7 publications

Sporadic neurofibroma of facial nerve presenting as parotid gland tumor: a rare case report

Sporadic neurofibroma of facial nerve presenting as parotid gland tumor: a rare case report

Extracranial Facial Nerve Schwannoma—Histological Surprise or Therapeutic Planning?

Utility of 3D double-echo steady-state with water excitation (3D-DESS-WE) in diagnosing intraparotid facial nerve schwannoma: A case report

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