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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Ecchordosis physaliphora | 1 Chordoma vs ecchordosis physaliphora (source unknown)
Residua of the notochord may rarely persist in adults as an ecchordosis physaliphora, occasionally forming a small gelatinous nodule. The specimen shown in this image is significantly larger than the typical ecchordosis but it is in the appropriate place and likely not a small chordoma.
