Enhancing local recurrence detection in patients with high-grade soft tissue sarcoma: value of short-term Ultrasonography added to post-operative MRI surveillance

Table 2 Tumor characteristics

Tumor	n = 198
Type of sarcoma
Undifferentiated pleomorphic sarcoma	63 (31.8)
Myxoid liposarcoma	29 (14.6)
Myxofibrosarcoma	27 (13.6)
Synovial sarcoma	15 (7.6)
Fibrosarcoma	10 (5.1)
Malignant peripheral nerve sheath tumor	9 (4.5)
Dedifferentiated liposarcoma	8 (4.0)
Extraskeletal myxoid chondrosarcoma	5 (2.5)
Leiomyosarcoma	5 (2.5)
Others^a
Location
Thigh	77 (38.9)
Calf and knee	34 (17.2)
Trunk^b	32 (16.2)
Buttock	16 (8.1)
Upper arm	16 (8.1)
Forearm	14 (7.1)
Wrist and hand	5 (2.5)
Foot and ankle	4 (2.0)
Depth
Intra or intermuscular	103 (52.0)
Dermis or subcutaneous	95 (48.0)
Size
\(<\)5 cm	94 (47.5)
5 − 10 cm	62 (31.3)
10 − 15 cm	30 (15.2)
\(\ge\)15 cm	12 (6.1)
Grade
Grade 2	122 (61.6)
Grade 3	76 (38.4)

Note: Data in parenthesis indicate percentages. ^aOthers include rhabdomyosarcoma (n = 4), clear cell sarcoma (n = 3), dermatofibrosarcoma protuberans (n = 3), Ewing sarcoma (n = 3), undifferentiated spindle cell sarcoma (n = 3), extraskeletal osteosarcoma (n = 2), angiosarcoma (n = 2), epithelioid sarcoma (n = 2), extraskeletal mesenchymal chondrosarcoma (n = 1), alveolar soft part sarcoma (n = 1), high grade pleomorphic sarcoma (n = 1), myofibroblastic sarcoma (n = 1), and spindle cell liposarcoma (n = 1). ^bTrunk includes the anterior chest wall, back, and abdominopelvic wall.

ISSN: 1470-7330