Type:
Educational Exhibit
Keywords:
Musculoskeletal bone, CT, MR, Conventional radiography, Biopsy, Neoplasia
Authors:
K. J. NAM1, I. S. Lee2, J. H. Yi3; 1Busan/KR, 2Pusan/KR, 3Daegu/KR
DOI:
10.1594/ecr2013/C-1220
Imaging findings OR Procedure details
1.
First step; Number and pattern of lesion
The sclerotic lesions can be classified into solitary,
multifocal,
and diffuse types according to the number and extent of the lesion.
The ‘multifocal’ means multiple lesions with relatively discrete border and the ‘diffuse’ means lesions with indistinct border and large extent involving one or more anatomic site.
2.
Second step; Degree of homogeneity of solitary lesion
Heterogeneous density demonstrates mixed pattern of osteoblastic and osteolytic portions.
3.
Third step; Location of solitary lesion
The focal lesion can be classified with intramedullary,
intracortical and juxtacortical according to the location.
Occasionally the location can be crucial clue for the differential diagnosis.
4.
Fourth step; tumorous and non-tumorous condition of solitary lesion
Although the radiographic findings may not allow precise differentiation between tumorous and non-tumorous condition,
they may provide reliable information regarding its aggressiveness or rate of growth.
This information,
coupled with data reflecting the site of the lesion and the age of the patient,
allows the formulation of a reasonable diagnosis in most cases.
additionally,
tumorous lesions are categorized as benign and malignant.