All the exophytic tumors and polypoid tumors were well-defined and rounded; while the infiltrative tumors had ill-defined margins, and combined tumors were a mixture of both.
When the lymph nodes are more than 33 mm, have ill-defined or spiculated margins, or contain intranodal microcalcifications they are strongly associated with malignancy [42].
The hatched area represents the Jigokudani valley, and the dotted lines indicate the traces of hydrothermal eruption craters, some of which are connected one another by repeated eruptions and have ill-defined borders.
In either case, an appropriate operative field is of paramount important because liposarcomas often have ill-defined borders: because they contain a high proportion of adipose-like tissue, it is sometimes difficult to distinguish tumor-related adipose tissue from normal adipose tissue [9].
A malignant thyroid nodule tends to have ill-defined margins on ultrasound (Fig. 1).
However, enamel defects are often of irregular shape and frequently have ill-defined boundaries presenting difficulties in accurate quantification by manual techniques.
The second step, BML segmentation, automatically identified the boundaries of the BMLs within the bone region found in the first step by using a region-based curve evolution algorithm [ 20], which was considered an optimal algorithm because BMLs often have ill-defined boundaries.
However, CMAs have been ill defined and poorly evaluated, largely due to the lack of measurement tools to assess mobilization processes and impact.
While the term "burnout" has become quite common in both research and practice, it has been ill defined historically.
The Fed's message, he said, "has been ill defined and not internally consistent.
In particular, he claimed that environmental degradation was likely due to a conception of the human self that had been ill defined in the past.
