We describe a patient with liver cirrhosis who presented with erosive oral and cutaneous lichen planus (LP) and incidentally was found simultaneously to have thymoma and hepatoma. We support the notion forwarded earlier that LP and chronic liver disease is more than a mere coincidence and that there is a noncoincidental association between LP and thymoma. We believe this is also the first reported case in the English Literature of coexistence of the three condition LP, thymoma and hepatoma complicating liver disease.