title: Ectomesenchymal chondromyxoid tumor of tongue.
abstract: Ectomesenchymal chondromyxoid tumor (ECMT) is a rare entity of the dorsal tongue first described in 1995. Herein, we report a rare case of lingual ECMT in a 41-year-old man. Patient presented with an asymptomatic, small nodule (0.5 cm in diameter) in the anterior tongue. The pathological findings showed uni-lobular proliferation of fusiform cells, arranged in net-like sheets or swirls, in a chondromyxoid background. The tumor cells were immunoreactive for S-100 and glial fibrillary acidic protein (GFAP), but negative for epithelial markers. Familiarity with this entity helps pathologists make a correct diagnosis.
authors: Department of Pathology, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan.
authors: Shan-Yin
authors: SY
authors: Tsai
authors: Kung-Chao
authors: KC
authors: Chang
authors: Hung-Wen
authors: HW
authors: Tsai
authors: Ying-Tai Jin
authors: YT
authors: D D S
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D018211:Chondrosarcoma, Mesenchymal / Q000175:diagnosis* / Q000473:pathology*; D005904:Glial Fibrillary Acidic Protein / Q000032:analysis; D006651:Histocytochemistry; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008853:Microscopy; D009236:Myxosarcoma / Q000175:diagnosis* / Q000473:pathology*; D009418:S100 Proteins / Q000032:analysis; D014059:Tongue / Q000473:pathology*; D014062:Tongue Neoplasms / Q000175:diagnosis* / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D005904:Glial Fibrillary Acidic Protein; D009418:S100 Proteins