|Multiple chondromata of fingers|
A chondroma is a benign cartilaginous tumor, which is encapsulated with a lobular growing pattern.
Tumor cells (chondrocytes, cartilaginous cells) resemble normal cells and produce the cartilaginous matrix (amorphous, basophilic material).
Characteristic features of this tumor include the vascular axes within the tumor, which make the distinction with normal [hyaline cartilage].
- enchondroma - tumor grows within the bone and expands it
- ecchondroma - grows outward from the bone (rare)
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