Code |
Diagnosis |
Comment |
Score |
anonymous |
Malignant myxoid tumour consistent with myxoid malignant fibrous histiocytoma (100%)
|
Immunostains for desmin, actin, S100, CD31, CD34 to exclude specific differentiation.
|
100 |
anonymous |
Malignant myxoid tumour consistent with myxoid malignant fibrous histiocytoma (100%)
|
nil
|
100 |
anonymous |
myxofibrosarcoma
|
nil
|
100 |
anonymous |
Myxofibrosarcoma 100%
|
Main differentiation is from myxoid liposarcoma. Immunostaining with S-100 protein will highlight lipoblasts, whereas in myxofibrosarcoma the pseudolipoblasts will not be stained.
|
100 |
anonymous |
Myxoid malignant fibrous histiocytoma 70%
Inflammatory myxohyaline tumor 30%
|
nil
|
70 |
anonymous |
Malignant myxoid sarcoma consistent with myxoid malignant fibrous histiocytoma. 100%
|
For differential diagnosis, to sample more tissue and do immunostains to search for any line of differentiation eg. myxoid liposarcoma.
|
100 |
anonymous |
Myxoid sarcoma. (100%)
|
Inflammatory myxohyaline tumor of the distal extremities with virocyte or Reed-Sternberg-like cells needs to be considered/excluded. Other DDx includes chondrosarcoma, etc. Suggest more sampling and correlate with imaging.
|
60 |
anonymous |
Right knee tumor - Myxofibrosarcoma (Myxoid MFH) 100%
|
nil
|
100 |
anonymous |
Malignant myxoid tumour (100%), differential diagnosis includes low grade fibromyxoid tumour (90%) and myxoid malignant fibrous histiocytoma (10%)
|
nil
|
60 |
anonymous |
Myxoid sarcomatous lesion 100%
|
Differential diagnoses include Myxoid liposarcoma, Myxoid malignant fibrous histiocytoma
|
60 |
anonymous |
Malignant myxoid tumor: 1) Myxofibrosarcoma; 2) Myxoid Chondrosarcoma; 3) Myxoid Liposarcoma.
|
Perform x-ray, special stains and IHC.
|
60 |
anonymous |
Myxofibrosarcoma 100%
|
nil
|
100 |
anonymous |
Juxta-articular myxoma 60%
Low-grade myxoid sarcoma 40%
|
Further blocks and correlation with clinical/radiology findings
Ki-67 to assess proliferation
Immunostains cytokeratin to exclude myxoid synovial sarcoma
|
40 |
anonymous |
Myxoid sarcoma, favor myxoinflammatory fibroblastic sarcoma, less likely myxoid malignant fibrous histiocytoma
|
nil
|
60 |
anonymous |
Myxofibrosarcoma, intermediate grade
|
nil
|
100 |
anonymous |
Myxofibrosarcoma. 100% Probability
|
nil
|
100 |
anonymous |
Malignant myxoid tumour (100%); favour low grade myxoid malignant fibrous histiocytoma,(myxoid MFH)(90%); myxoid chondrosarcoma (10%)
|
Examine more sections; immunostains for actin for myofibroblastic differentiation in myxoid MFH; S100 protein to exclude chondrosarcoma.
|
90 |
anonymous |
Low-grade myxofibrosarcoma.
|
nil
|
100 |