Pseudotetraploid clone with structural chromosomal rearrangements in a chondromyxoid fibroma: a case report.

Chondromyxoid fibroma is a rare benign tumor accounting for 1-2% of primary bone tumors. Most of the patients are young males in the 2nd and 3rd decades of life. Metaphyses of long bones are predominantly affected.

Clonal trisomy 4 cells detected in the ossifying renal tumor of infancy: study of 3 cases.

The ossifying renal tumor of infancy is a rare neoplasm diagnosed in the first 2 years of life, predominantly in boys. The neoplasm is primarily characterized by the presence of a large ossifying component. Its most common mode of presentation is hematuria, and it has a uniformly benign behavior.