Solitary fibrous tumor (SFT) is a rare benign soft tissue mesenchymal neoplasm. There have been a few reports of extrapleural SFTs although it can occur anywhere in the body.Patient concerns:
A 30-year-old male presented with an anterior neck mass since one month.Diagnoses:
Based on physical and radiologic examination, preliminary differential diagnosis was thymic neoplasm or intrathoracic goiter.Interventions:
We performed surgical excision of the neck mass.Outcomes:
The histopathological examination revealed an extrapleural SFTLessons:
We present a case of extrapleural SFT in the thymus which was misdiagnosed as thymoma based on radiologic findings.