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Pigmentation produced by the collection of hemoglobin, or pigment carried to a site through the blood.
See also: pigmentation
the deposition of coloring matter; the coloration or discoloration of a part by a pigment. See also hyperpigmentation, hypopigmentation.
production of pigment is a characteristic of some bacteria which may be useful in identification. Examples are Pseudomonas aeruginosa, Chromobacterium violaceum and Serratia marcescens.
pigmentation produced by accumulation of hemoglobin derivatives, such as hematoidin or hemosiderin.