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图片拍的不是很清楚,周围没有腮腺实质,是腮腺内的病变?还是口腔粘膜下的肿瘤?
大体上,肿瘤界限清楚,病变内纤维性区与粘液区交替分布,梭状细胞形态温和,细胞密度不高,异型性应该不明显,不管是纤维性区域还是粘液样区域,均可见局部的旋涡状和模糊席纹状排列。总体来说,应该是个良性软组织神经源性肿瘤,形态上来看主要是鉴别软组织型神经束膜瘤(Perineurioma,Soft tissue type)和神经纤维瘤,可以免疫标记EMA,GLUT-1,CD34,S100,SMA。软组织神经束膜瘤最好发于肢端皮肤软组织,但近年来在头颈部,以及口腔内,甚至腮腺实质内屡有报道,肿瘤一致性表达EMA,半数以上表达CD34,仅局灶表达S100。而腮腺内最常见的神经源性肿瘤是神经纤维瘤和神经鞘瘤。图片太模糊,本例主要是鉴别于神经纤维瘤,表达S100及CD34,但不表达EMA,GLUT-1。
可参考文献:
1,Hornick JL, Fletcher CD.Soft tissue perineurioma: clinicopathologic analysis of 81 cases including those with atypical histologic features.Am J Surg Pathol. 2005 Jul;29(7):845-58.
2,Agaimy A, Bohle RM, Schick B, Bumm K.Perineurioma of the parotid gland: first case report.Hum Pathol. 2011 Jun;42(6):904-8.
3.Noonan VL, Greene DJ, Brodsky G, Kabani SP.Extraneural Sclerosing Perineurioma of the Buccal Mucosa:
A Case Report and Clinicopathologic Review.Head Neck Pathol. 2010 Jun;4(2):169-73
4.Koutlas IG, Scheithauer BW, Folpe AL.Intraoral Perineurioma, Soft Tissue Type: Report of Five Cases,
Including 3 Intraosseous Examples, and Review of the Literature.Head and Neck Pathol (2010) 4:113–120
谢
图片拍的不是很清楚,周围没有腮腺实质,是腮腺内的病变?还是口腔粘膜下的肿瘤?
大体上,肿瘤界限清楚,病变内纤维性区与粘液区交替分布,梭状细胞形态温和,细胞密度不高,异型性应该不明显,不管是纤维性区域还是粘液样区域,均可见局部的旋涡状和模糊席纹状排列。总体来说,应该是个良性软组织神经源性肿瘤,形态上来看主要是鉴别软组织型神经束膜瘤(Perineurioma,Soft tissue type)和神经纤维瘤,可以免疫标记EMA,GLUT-1,CD34,S100,SMA。软组织神经束膜瘤最好发于肢端皮肤软组织,但近年来在头颈部,以及口腔内,甚至腮腺实质内屡有报道,肿瘤一致性表达EMA,半数以上表达CD34,仅局灶表达S100。而腮腺内最常见的神经源性肿瘤是神经纤维瘤和神经鞘瘤。图片太模糊,本例主要是鉴别于神经纤维瘤,表达S100及CD34,但不表达EMA,GLUT-1。
可参考文献:
1,Hornick JL, Fletcher CD.Soft tissue perineurioma: clinicopathologic analysis of 81 cases including those with atypical histologic features.Am J Surg Pathol. 2005 Jul;29(7):845-58.
2,Agaimy A, Bohle RM, Schick B, Bumm K.Perineurioma of the parotid gland: first case report.Hum Pathol. 2011 Jun;42(6):904-8.
3.Noonan VL, Greene DJ, Brodsky G, Kabani SP.Extraneural Sclerosing Perineurioma of the Buccal Mucosa:
A Case Report and Clinicopathologic Review.Head Neck Pathol. 2010 Jun;4(2):169-73
4.Koutlas IG, Scheithauer BW, Folpe AL.Intraoral Perineurioma, Soft Tissue Type: Report of Five Cases,
Including 3 Intraosseous Examples, and Review of the Literature.Head and Neck Pathol (2010) 4:113–120