abnormal Reichert's cartilage morphology absent Reichert cartilage MP:0004916 MPheno.ontology absence of the cartilage normally found in the mesenchyme of the second branchial arch in the embryo, from which develop the stapes, the styloid processes, the stylohyoid ligaments, and the lesser cornua of the hyoid bone absent Reicherts cartilage absent hyoid cartilage absent second pharyngeal arch cartilage