"T1: homogeneous iso to hyperintense compared to muscle"
"T2: heterogeneous with variable signal intensity and hypointense foci"
"STIR/PDFS: hyperintense"
"T1C+ (Gd): variable inhomogeneous and heterogeneous enhancement"
"Soft tissue clear cell sarcomas are diagnosed based on histology and immunohistochemistry 1."
"Soft tissue clear cell sarcomas are diagnosed based on histology and immunohistochemistry 1."
"EWSR1-ATF1 fusions in a high number of cases"
"Clear cell sarcomas of soft tissue are associated with EWSR1-ATF1 gene fusions in 70-90% 1-3 and EWSR1-CREB1 fusions in a subset of tumours 1,2."
Expected headings
"Signal characteristics"
"Clear cell sarcomas are most often found in deep-seated regions of the extremities and have been associated with tendons and aponeuroses such as the ankle and foot, which are the most common sites. Less common and rare locations include head and neck, trunk and visceral regions as well as from skin and oral mucosa 1-4."
"form, location and size"
"Clear cell sarcomas are aggressive tumours and treatment usually includes wide surgical excision with an acceptable amount of tumour-free surrounding tissue. Local recurrence is seen in up to 40% metastasis to lung or lymph nodes occurs in 30-50% of patients. Radiation therapy can be done to improve local tumour control in case of close resection margins. Chemotherapy is mostly administered in metastatic disease. Overall survival rates have been reported to be in the range of about 60%, 35% and 10% for 5, 10 and 20 years respectively. Tumour size >5 cm, tumour necrosis as well as nodal involvement, are considered unfavourable prognostic factors 1-3."
"History and etymology"