[Methemoglobinemia caused by inhalation of aniline vapors by a newborn].

Most cases of toxic methemoglobinemia in children are caused by direct contact of the methemoglobinizing agents with the skin and mucosa and in a shorter scale, by the ingestion of such compounds. The first case we know is reported where the toxic was inhaled. The basis to establish the diagnosis of methemoglobinemia, together with the differential diagnosis with other diseases in children that show cyanosis in their course are discussed.