Background. - The diagnosis of Tangier disease in childhood is based o
n the specific aspect of tonsils or by screening relatives of affected
subjects. Case report. - A moderately enlarged liver associated with
splenomegaly was found upon routine physical examination of a 3 month-
old breast-fed boy, born in Turkey from consanguineous parents. Labora
tory studies disclosed moderate increase in serum alanine aminotransfe
rase activity (ALAT 52 UI/l, N < 30). The diagnosis of Tangier disease
was confirmed by studies of plasma cholesteral and apolipoprotein A.
By 8 months of age, the patient had enlarged orange tonsils. Small cer
vical, axillary and inguinal lymphadenopathies were present. The tonsi
lar and adenoidal tissues were removed at 18 months of age because the
patient suffered from chronic airway obstruction. Colonoscopic examin
ation revealed tiny flat orange spots, 1 to 2 mm in diameter, scattere
d throughout the rectosigmoidal and colonic mucosa. Survey of the fami
ly led to the discovery of one sister, with asymptomatic apolipoprotei
n A1 deficiency and a normal sister, while the parents were heterozygo
tes for Tangier disease. Conclusion. - Enlarged liver associated with
a moderate level in serum aminotransferase may be an early manifestati
on of Tangier disease in infants. Rectosigmoidal and colonic lesions m
ay be convenient for biopsy when tonsillectomy is not indicated.