METHODS: In this case report, we described the case of a 46 year old man who developed a primary splenic alveolar soft part sarcoma. The tumour displayed typical morphological alveolar aspect, as well as immunohistochemical profile notably TFE3 nuclear staining. Detection of ASPSCR1 Exon 7::TFE3 Exon 6 fusion transcript in molecular biology and TFE3 rearrangement in FISH confirmed the diagnosis.
CONCLUSIONS: We described the first case of primary splenic alveolar soft part sarcoma, which questions once again the cell of origin of this rare tumour.
方法:在本案例报告中,我们描述了一例46岁的男性,他发展为原发性脾肺泡软组织肉瘤。肿瘤表现出典型的形态肺泡方面,以及免疫组织化学谱,特别是TFE3核染色。分子生物学中ASPSCR1外显子7::TFE3外显子6融合转录本的检测和FISH中TFE3重排的检测证实了诊断。
结论:我们描述了第一例原发性脾肺泡软组织肉瘤,这再次质疑这种罕见肿瘤的起源细胞。