Nail clubbing of fingers in a patient with<unk> . First described by Hippocrates, clubbing is also known as "Hippocratic fingers". Signs and symptoms of<unk>  syndrome include the following: * Cyanosis (a blue tinge to the skin resulting from lack of oxygen) * High red blood cell count * Swollen or clubbed finger tips (clubbing) * Fainting (also known as syncope) * Heart failure * Abnormal heart rhythms * Bleeding disorders * Coughing up blood * Iron deficiency * Infections (endocarditis and pneumonia) * Kidney problems * Stroke * Gout (rarely) due to increased uric acid resorption and production with impaired excretion * Gallstones
Eisenmenger's syndrome
Tetralogy of Fallot  Tetralogy of Fallot  1
Foville's syndrome
Lown–Ganong–Levine syndrome
Claude's syndrome
Saal Greenstein syndrome
Mietens syndrome
Löffler's syndrome