95. 青少年的軟組織腫瘤,切片呈現 round cell neoplasm 樣貌,免疫染色呈現
Desmin (+, diffuse),EMA (+, focal),CD99 (+, focal),WT1 (-, epitope 不明),
CD45 (-),且已知有某種 EWSR1 driver fusion gene。下列何種診斷比較不可能?
(A)Alveolar rhabdomyosarcoma
(B)Angiomatoid fibrous histiocytoma
(C)Desmoplastic small round cell tumor
(D)Round cell sarcoma with EWSR1-PATZ1 fusion