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| Code | Diagnosis | Comment | Score |
| anonymous | Inflammatory myofibroblastic tumour (100%) | May be positive for actin, desmin, ALK-1. Also perform immunostains for myogenin and myo-D1 to exclude embryonal rhabdomyosarcoma. | 100 |
| anonymous | Inflammatory myofibroblastic tumor (100%) | Immuno ALK-1 staining usually positive in IMT of bladder. A panel of immunostains should also include: S-100 protein, cytokeratin, desmin, smooth muscle actin, CD34. | 100 |
| anonymous | Spindle cell tumor, favor inflammatory myofibroblastic tumor (99%). Ddx: Post-operative spindle cell tumor (1%). | Correlate with any history of operation, and perform ALK-1 immunostaining (positive in inflammatory myofibroblastic tumor). | 100 |
| anonymous | INFLAMMATORY MYOFIBROBLASTIC TUMOR(INFLAMMATORY PSEUDOTUMOR) 100% | Differential includes low grade leiomyosarcoma, especially myxoid subtype. More sampling of the tumor border, if invasive, favor low grade leiomyosarcoma. Immunostains, although overlap, may sometimes help for distinction betwen the two. INFLAMMATORY PSEUDOTUMOR usually CK+/-, actin+/-, desmin +/-. Leiomyosarcoma usually CK-, actin+, desmin +/-. | 100 |
| anonymous | Inflammatory myofibroblastic tumor. (100%) | Do ALK-1 stain to confirm. | 100 |
| anonymous | Bladder - Inflammatory myofibroblastic tumour 100% | nil | 100 |
| anonymous | Spindle cell lesion, with differential diagnosis of 1. Inflammatory myofibroblastic tumour (80%) 2. Leiomyosarcoma (10%) 3. Rhabdomyosarcoma (10%) | A panel of immunostaining including ALK-1, desmin, myogenin, MyoD1, muscle-specific actin should be performed. ALK-1 will be positive in inflammatory myofibroblastic tumour. | 100 |
| anonymous | Inflammatory pseudotumour 100% | nil | 90 |
| anonymous | Inflammatory myofibroblastic tumor (Inflammatory pseudotumor) | nil | 100 |
| anonymous | INFLAMMATORY MYOFIBROBLASTIC TUMOUR | nil | 100 |
| anonymous | Inflammatory myofibroblastic tumour 90% Other spindle cell neoplasm 10% | Perform: Alk-1 desmin, MyoD1 (rhabdomyosarcoma, leiomyosarcoma) | 100 |
| anonymous | Inflammatory myofibroblastic tumor/inflammatory pseudotumor | To perform ALK1 immunostaining, and correlate with clinical history for previous bladder instrumentation or operation | 100 |
| anonymous | Inflammatory pseudotumor | nil | 90 |
| anonymous | Sarcoma, favour spindle cell rhabdomyosarcoma DDx: leiomyosarcoma, fibroblastic/myofibroblastic tumour. Probability: 100% | nil | 30 |
| anonymous | Inflammatory myofibroblastic tumour 100% | nil | 100 |
| anonymous | Inflammatory pseudosarcomatous myofibroblastic proliferation. | nil | 100 |