This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Wilms Tumor, Subject name: Pathology
All are markers of Wilms' tumor except: 
Select and explain. 
A. Desmin, B. Vimentin, C. TTF 1, D. Cytokeratin
C: TTF 1
Answer: C: TTF 1 
Explanation: Wilms tumor Marker of Triphasic tumor. 3 components d/t abnormal mesenchymal differentiation : Blastemal Epithelial Stromal Various markers: Desmin - Muscle cell tumor Vimentin - Mesenchymal cell tumor marker Cytokeratin - Epithelial cell tumor marker TTF-1 (thyroid transcription factor): Lung cancer Thyroid cancer. Adenocarcinoma Small cell Ca of lung.