Fig 1.
Magnetic resonance imaging (MRI) analysis.
(a) the definition of superficial soft tissue tumors, and (b) the relationship between tumor characteristics and skin parameters (no skin invasion vs. skin invasion).
Fig 2.
(a, b, c) Magnetic resonance imaging (MRI) findings for a superficial lesion in the right thigh in a 44-year-old woman. Axial T1-weighted (a) and T2-weighted (b) images reveal that the lesion did not invade the skin. Pathological examination of the specimen confirmed a solitary fibrous tumor (c) (hematoxylin-eosin staining; magnification ×400). (d, e, f) MRI findings for a superficial lesion in the right inguinal region in a 46-year-old man. Axial T1-weighted (d) and T2-weighted (e) images reveal that the lesion invaded the skin. Pathological examination of the specimen confirmed epithelioid sarcoma (f) (hematoxylin-eosin staining; magnification ×400).
Table 1.
Descriptive statistics regarding patients’ demographic data.
Table 2.
Relationship of each histological classification with skin invasion outcomes.
Table 3.
Cox proportional hazards analysis for overall survival.
Fig 3.
a: Overall survival curve. b: Survival curves for patients with sarcomas invading the skin as well as for patients with sarcomas that did not invade the skin. c: Survival curves for patients with metastases and those without metastases upon initial diagnosis. d: Survival curves for patients with sarcomas measuring <5 cm and ≥5 cm. e: Survival curves for patients aged <65 and ≥ 65 years. f: Survival curves for patients with high- and low-grade sarcomas.
Table 4.
Associations with tumor-skin invasion in superficial soft tissue sarcomas.