Actinomycosis has been known to involve virtually every anatomic site in th
e body. Although actinomycosis has been identified in resected tonsils, its
possible role in adeno-tonsillar disease has received little attention. A
clinicopathological study of 302 patients who had adeno-tonsillar surgery i
s presented. Tonsillar actinomycosis was present in 86 (28.5%) patients. Th
e statistical analysis revealed a significant association (P < 0.0001) of a
ctinomycosis and tonsillar hypertrophy (56.8%) compared to only 10.3% in th
e recurrent tonsillitis group. A statistically significant association (P <
0.0001) of tonsillar actinomycosis and sickle cell anaemia, beta thalassae
mia, bronchial asthma and beta haemolytic streptococcal infections was also
seen. This data supports a predisposition of the above conditions to tonsi
llar actinomycosis and adeno-tonsillar hypertrophy and a possible etiopatho
logic role of this organism in adeno-tonsillar hypertrophy and disease. Alt
hough the clinical association of actinomycosis and tonsillar hypertrophy a
nd beta haemolytic. streptococcal infection has been described before the a
ssociation of actinomycosis with sickle cell anaemia, beta thalassaemia and
bronchial asthma is being observed for the first time in literature. (C) 2
001 Elsevier Science B.V. All rights reserved.