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Excised aortic valve leaflets showing ochronotic calcification.
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The tricuspid aortic valve presented with thickened and nodular calcified dark black leaflets ( Fig. 1 ).
Histopathological examination of a section of valvular leaflet showing ochronotic pigment deposition (hematoxylin and eosin, original x 5).
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 Histopathological examination of the aortic valve tissue demonstrated nodular calcification and dark pigmented deposits within the areas of calcification and focally in the noncalcified valvular tissue ( Fig. 2 ).
Ochronotic pigmentation of the sclera of the eye.
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Fig. 3 ). Furthermore, the cartilage of the outer ears showed gray discoloration ( Fig. 4 ). 
Ochronotic pigmentation of the ear cartilage.
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Fig. 3 ). Furthermore, the cartilage of the outer ears showed gray discoloration ( Fig. 4 ). 