Abdomen - Strong MyoD1 immunostaining in tumor cells of a sarcoma NOS.
Abdominal wall - MyoD1 negative myxofibrosarcoma.
Bone - MyoD1 negative chondrosarcoma.
Bone - MyoD1 negative peripheral neuroectodermal tumor (PNET).
Bone - Weak MyoD1 staining of few cells in an osteosarcoma.
Colon - MyoD1 negative colorectal adenocarcinoma.
Kidney - MyoD1 negative angiomyolipoma.
Kidney - MyoD1 negative clear cell renal cell carcinoma.
Lung - MyoD1 negative malignant mesothelioma.
Pelvis - MyoD1 negative paraganglioma.
Prostate - MyoD1 negative adenocarcinoma (Gleason 3+3=6).
Retroperitoneum - MyoD1 negative lipoosarcoma.
Retroperitoneum - MyoD1 negative malignant peripheral nerve sheath tumor (MPNST).
Retroperitoneum - Strong MyoD1 positivity of most tumor cells of a sarcoma NOS.
Skeletal muscle - Moderate to strong MyoD1 immunostaining of all cells in a rhabdomyosarcoma.
Skeletal muscle - Moderate MyoD1 immunostaining of all cells in a rhabdomyosarcoma.
Skeletal muscle - MyoD1 immunostaining of tumor cells is not detctable in this rhabdomyosarcoma case.
Skeletal muscle - Strong MyoD1 positivity of all cells in a rhabdomyosarcoma.
Thorax - MyoD1 negative dermatofibrosarcoma protuberans.
Uterus - MyoD1 negative Leiomyosarcoma.