Hemangiopericytoma of the Parapharyngeal Space

Fishero, Brian A.; Guido, Kelly M.; McGuff, H. Stan; Heim-Hall, Josefine; Miller, Frank R.

doi:10.1177/014556131309200908

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Symptoms of parapharyngeal tumor also vary, such as neck mass, sleep apnea, dysphagia, dyspnea, pharyngeal mass, and OME. 4,6,11 -13 In our previous report, we described that mechanical obstruction of the ET by a benign tumor of the parapharyngeal space does not always cause OME. 3 In the present study, we show that malignant tumors are more prone to cause OME as compared to benign tumors, and the difference was statistically significant.…”

Section: Discussionmentioning

confidence: 96%

Otitis Media With Effusion Caused by a Parapharyngeal Tumor Showing Normal Nasopharyngeal Findings

et al. 2019

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The objective of this study is to evaluate otitis media with effusion (OME) among patients with parapharyngeal tumor. We have experienced 82 parapharyngeal tumor cases and encountered 14 patients complaining of hearing loss due to OME as the initial symptom. These patients showed normal nasopharyngeal findings and the presence of tumor had been detected long time after the beginning of their hearing symptoms (4 months to 13 years: median 2.5 years). Six patients had undergone ventilation tube insertion on the affected ear, which may lead to delay in diagnosis. Pathological examination was performed in 76 of 82 patients. Among these 76 patients, 13 showed OME. Seven patients had malignant lesions, whereas 6 had benign lesions. Therefore, malignant lesions are prone to occur with OME and its relative risk was 2.26 (95% confidence intervals, 1.16-4.42). This difference was statistically significant ( P = .044, Fisher test). Otitis media with effusion is a very common disease and is well-known as a primary symptom of nasopharyngeal carcinoma. Therefore, nasopharyngeal observation is necessary for patients with intractable middle ear effusion. However, present 14 patients with OME showed normal nasopharyngeal findings and finally found after an imaging study. From our data, OME is an important but go-by symptom of parapharyngeal tumors. Imaging studies are potently useful for such patients with intractable OME.

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Section: Discussionmentioning

confidence: 96%

Otitis Media With Effusion Caused by a Parapharyngeal Tumor Showing Normal Nasopharyngeal Findings

et al. 2019

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“…Up to date, only 22 cases of SFT/HPC arising in this region were reported in English literature (summarized in Table 1). 6-27…”

Section: Discussionmentioning

confidence: 99%

The Natural History of Parapharyngeal Solitary Fibrous Tumor/Hemangiopericytoma: A Case Report

Chen

Hua

et al. 2021

Ear Nose Throat J

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Solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is extremely rare, and most of them are immediately treated for radical resection. However, the information concerning its natural history remains unclear. In this report, we presented a patient with parapharyngeal SFT/HPC, who was not immediately treated with surgical resection at first diagnosis. After approximately 3 years, the tumor volume doubling time (TVDT) and specific growth rate (SGR) could be measured through 3 serial magnetic resonance imagings. The TVDTs in the early and late pretreatment stages were 350 and 180 days, respectively, while the SGRs were 0.002 and 0.003, respectively. The growth rate of this disease entity is generally slow and may accelerate in the disease process.

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“…Various tumors occur in the parapharyngeal space (PS) and show various symptoms. [1][2][3][4][5][6][7][8][9][10] However, the PS is located deep in the head, and a tumor in the PS is usually asymptomatic and may grow to a huge size. 11 In this article, we introduce our experience of the removal of a large PS tumor using a less invasive technique.…”

Section: Introductionmentioning

confidence: 99%

Endoscopy-Aided Combined Intraoral and Cervical Approach for a Huge Parapharyngeal Benign Tumor

et al. 2020

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We introduce here our surgical approach for the removal of a huge parapharyngeal tumor in 3 cases. Surgery was done under general anesthesia using transnasal intubation. Transoral manipulation was performed first. Using a tongue retractor and an angle widener, a wide surgical field was provided. Incision was made on the palate around the tumor. Tumor was separated from the surrounding tissue, preserving the tumor capsule. Then, a 5-cm small skin incision was made. Both parotid and submandibular glands were pushed upward, and the parapharyngeal space was opened. The tumor was also separated from the surrounding tissue. These manipulations were done under endoscopic observation. Finally, the tumor was pushed laterally and safely removed intraorally. After removal of the tumor, the wounds were closed, and vacuum drainage was settled for a few days. No apparent problems, such as malocclusion and facial palsy, occurred, and the patients were free from disease for more than 10 years. For the removal of a large parapharyngeal tumor, the mandibular swing approach is usually used; however, this approach is invasive, and certain sequelae, such as facial wound and malocclusion, may occur. Our technique enables the safe and less invasive removal of such a huge parapharyngeal benign lesion.

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Hemangiopericytoma of the Parapharyngeal Space

Cited by 4 publications

References 7 publications

Otitis Media With Effusion Caused by a Parapharyngeal Tumor Showing Normal Nasopharyngeal Findings

Otitis Media With Effusion Caused by a Parapharyngeal Tumor Showing Normal Nasopharyngeal Findings

The Natural History of Parapharyngeal Solitary Fibrous Tumor/Hemangiopericytoma: A Case Report

Endoscopy-Aided Combined Intraoral and Cervical Approach for a Huge Parapharyngeal Benign Tumor

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