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Journal of Case Reports
Collagenous Fibroma in Parotid
Mariana Silva Costa, Luísa Frutuoso, Florinda Cardoso, Alexandre Alves, Mário Caetano Nora
Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal.
Corresponding Author:
Dr. Mariana da Silva Costa 
Email: mariana87costa@gmail.com
Received: 12-OCT-2019 Accepted: 18-MAR-2020 Published Online: 15-MAY-2020
DOI: http://dx.doi.org/10.17659/01.2020.0026
Background: Desmoplastic fibroblastoma (collagenous fibroma) is a rare fibrotic tumor that presents as a firm, slowly growing, painless mass. In order to deepen the understanding of the diagnosis and differential diagnosis of desmoplastic fibroblastoma, we planned to analyze the clinical, radiological, and histopathological features and the outcome of desmoplastic fibroblastoma. Case Report: The authors report a case of a 48-year-old woman with a hard, slightly mobile nodule with imprecise limits in the right mandibular angle, with 9 month evolution. Ultrasound showed a hypoechoic, solid nodule in the superficial portion of the parotid gland.  Full parotidectomy was performed by detection of a contiguous nodule at the deep plane, adhering to the buccal branch of the facial nerve. Histology revealed a collagen fibroma. Conclusion: Awareness of this rare lesion arising in atypical location such as the parotid is required, as diagnosis and management can be challenging.
Keywords : Collagen, Desmoplastic Fibroma, Facial Nerve, Parotid Gland, Salivary Glands.
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