Korean J Otorhinolaryngol-Head Neck Surg.  2017 Oct;60(10):522-526. 10.3342/kjorl-hns.2016.16719.

Malignant Solitary Fibrous Tumor of the Parotid Gland

Affiliations
  • 1Department of Otorhinolaryngology, College of Medicine, Gyeongsang National University, Jinju, Korea. lesaby@hanmail.net
  • 2Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Korea.

Abstract

Solitary Fibrous tumor is usually arising in the pleura of the thoracic cavity and it has been described in a variety of extrapleural sites including the abdominal cavity, soft tissue, upper respiratory tract and rarely in head and neck region. We experienced a rare case of solitary fibrous tumor in the parotid gland. A 49-year-old woman presented with a painless mass in the left parotid. The mass was well-demarcated and easily dissected, and it showed a patternless arrangement of potential malignant spindle cells in a fibrotic background and prominent vascular structures. In immunochemistry, the mass cells were positive for CD34, vimentin, and negative for actin, S-100 protein, and cytokeratins. Therefore, the parotid mass diagnosed as SFT. During the 24 months of follow-up, there was no recurrence of tumor growth.

Keyword

Parotid gland; Salivary glands; Solitary fibrous tumor

MeSH Terms

Abdominal Cavity
Actins
Female
Follow-Up Studies
Head
Humans
Immunochemistry
Keratins
Middle Aged
Neck
Parotid Gland*
Pleura
Recurrence
Respiratory System
S100 Proteins
Salivary Glands
Solitary Fibrous Tumors*
Thoracic Cavity
Vimentin
Actins
Keratins
S100 Proteins
Vimentin
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