Nodular Fasciitis of the Parotid Gland, Masquerading as Pleomorphic Adenoma
황청수, 이창훈, 김아롱, 신나리, 박원영, 박민경, 박도윤,
소속 상세정보
황청수 ( Hwang Chung-Su )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
이창훈 ( Lee Chang-Hun )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
김아롱 ( Kim Ah-Rong )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
신나리 ( Shin Na-Ri )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
박원영 ( Park Won-Young )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
박민경 ( Park Min-Gyoung )
Dong-A University College of Medicine Department of Pathology
박도윤 ( Park Do-Youn )
Pusan National University School of Medicine Pusan National University Hospital Department of Pathology
KMID : 0357920140480050366
Abstract
It is difficult to distinguish nodular fasciitis (NF) from other neoplasm of the parotid gland, especially pleomorphic adenoma (PA) by fine needle aspiration cytology. A 39-year-old female noticed a mass in the parotid region. The aspirate material showed cohesive parts composed of the cells that had oval or spindle-shaped nuclei and relatively abundant cytoplasm and some cells with plasmacytoid features. The background substance was fibromyxoid. PA was diagnosed based on the cytologic findings. Subsequently, parotidectomy was performed and NF was diagnosed based on histologic and immunohistochemical findings. NF in the parotid region is rare and may be misdiagnosed as other benign or malignant tumors of the parotid gland. The clinical history of rapid growth and the presence of mitoses and inflammatory cells help to distinguish NF from PA. In addition, immunohistochemical stains for smooth muscle actin and CD68 are useful to confirm the diagnosis of NF.
키워드
Nodular fasciitis; Adenoma; pleomorphic; Parotid gland
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