Yochum & Rowe
Answers looked up and explained by Melanie Carr
A periosteal reaction of “trimmed whiskers” - very
thin, fairly short spicules of reactive new bone - is
most typical of:
In male patients, the primary source of skeletal
metastasis is a primary tumor in the:
The pathognomic lesion seen in the metastasis of
neuroblastoma to the skull is:
Widening of the skull sutures.
Multiple, diffuse, symmetric lucencies.
A soft tissue mass with sunburst speculation of
the skull tables.
Scalloped geographic lesions in the calvarium.
In both the cervical and thoracolumbar spine,
neurofibromas may cause:
Posterocentral vertebral scalloping.
Enlargement of the IVF caused by erosion of the
pedicle and posterior body.
Multiple level eccentric bilateral scalloping.
Single level eccentric bilateral scalloping.
Paget’s disease may be radiographically
distinguished from fibrous dysplasia because
Paget’s will commonly have:
A hazy, “ground glass” appearance.
Bowing deformities in the long tubular bones.
Subarticular long bone lesions.
The typical radiologic appearance of a periosteal
chondroma includes a classic triad of:
Endosteal scalloping, eccentric expansion of the
bone, and a calcified cartilaginous matrix.
Cortical scalloping, overhanging body edges,
and a calcified cartilaginous matrix.
A distinct soft tissue mass, cortical scalloping,
and a calcified, cartilaginous matrix.
Eccentric bone expansion, a distinct soft tissue
mass, and a calcified, cartilaginous matrix.
Clinically, aneurismal bone cysts:
Are usually silent, and are incidental findings on
x-rays taken for other reasons.
Are discovered only when there is pathologic
Are characterized by acute onset of local pain,
which rapidly increases in severity.
Are rarely subject to pathologic fracture.
The triad of abnormal growths seen in almost half of
the cases of Gardner’s syndrome consists of:
Café au lait spots, soft tissue fibromas, and
Café au lait spots, colonic polyps, and multiple
Soft tissue fibromas, multiple osteomas, and
Colonic polyps, soft tissue fibromas, and café au
Osteosarcoma shows a clear predilection for:
Females of childbearing age.
Males > 50 years of age.
Females < 25 years of age.