Lyme disease.

Lyme disease (Borreliosis), also called the "disease of 1000 faces", is produced by a bacterium called Borrelia burgdorferi, transmitted by the Ixodes tick. The clinical picture is non-specific and polymorph, with multisystemic involvement. Diagnosis is most often one of exclusion, and certain diagnosis is based on the presence of Borellia antibodies.

Focal nodular hyperplasia (FNH).

Focal nodular hyperplasia (FNH) is a benign tumour of the liver (hepatic tumour), which is the second most prevalent tumour of the liver (the first is hepatic hemangioma). It has a higher incidence in females, 20-40 years old, but also occurs in men and even in children. It is usually asymptomatic, rarely grows or bleeds, and has no malignant potential.