An oyster neoplasm of apparent mesenchymal origin.
D000818:Animals; D003238:Connective Tissue / Q000473:pathology; D003593:Cytoplasm; D006458:Hemolymph; D008637:Mesenchymoma / Q000473:pathology / Q000662:veterinary*; D008854:Microscopy, Electron; D009369:Neoplasms / Q000473:pathology / Q000662:veterinary*; D010125:Ostreidae; D010586:Phagocytes