Hemangiopericytoma of the Parapharyngeal Space: A Diagnostic Challenge

Villarreal, I.; Berrocal, Jose Garcia; Brea, Beatriz; Tejerina, Eva; Castelló, José R.; Ramírez‐Camacho, Rafael

doi:10.1159/000360480

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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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“…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%