Table 4.

Physical traits associated with chimerism. Most individuals with chimerism do not manifest physical traits indicative of their condition, and as a result, are believed to remain undiagnosed. Previous cases have described one or more physical traits listed above, which are associated with the phenotype of blood-exclusive or tetragametic chimerism

Physical trait	Type of chimerism
Discordant blood types	Blood-exclusive or tetragametic
Patchy, different colored hair	Tetragametic
Different colored eyes	Tetragametic
Bicolored skin pigmentation (depicting lines of Blaschko)	Tetragametic
Disorders of sexual development	Tetragametic