Fig. 2From: Application of first-order feature analysis of DWI-ADC in rare malignant mesenchymal tumours of the maxillofacial regionDWI-ADC images of a scarcoma and b lymphoma. a A 28Â years old female patient with a sarcoma within the left zygoma, DWI-ADC image the lesion appears relatively inhomogeneous slightly higher signal compared to the adjacent muscle. ADC value is about 1.12 mm2/s; b a 67Â years old male patient with a lymphoma within the right parotid gland, DWI-ADC image the lesion appears relatively homogeneous lower signal compared to the adjacent muscle. ADC value is about 0.54 mm2/s; c lymphoma correlating with an ADCmean in the lower range, positive skew (high skewness), and a steep curve (high kurtosis). Sarcoma correlating with a higher ADCmean value, a negative skew (low skewness), and a flatter shape (low kurtosis)Back to article page