HISTOPATHOLOGICAL PATTERN OF BENIGN SOFT TISSUE TUMOURS IN THE UNIVERSITY COLLEGE HOSPITAL, IBADAN, NIGERIA-A RETROSPECTIVE STUDY: 1970-2002

was carried out in the Department of Pathology, University College
Hospital, Ibadan.
All cases with a diagnosis of benign soft tissue tumours were reviewed from
the records of the department. Haematoxylin and eosin stained histological slides
retrieved and where necessary the paraffin blocks were recut and stained. The
tumours were classified according to the Weiss and Goldblum 2001 classification.
A total of 141,088 biopsies were received in the department over the study
period. Three thousand six hundred and sixty four cases which accounted for 2.6% of
all the biopsies recorded during the period. However, only two thousand eight
hundred and one cases of benign soft tissue tumours fulfilled the inclusion criteria.
These cases constituted 2% of all biopsies in the study period. Overall for all tumours,
the female: male ratio was 1.1:1; age range was 0 – 83 years, with mean age of 29
years in both sexes. The mean for males and females were 32 years and 26 years
respectively. The peak age group was 30-39 years but it was 20-29 years in female
and 30-39 years in males. Lipomatous tumours were the commonest which accounted
for 43.9% of cases. Together with vascular, neural, fibrous, fibrohistiocytic and
synovial tumours they constituted 96.6% of all the cases.
Benign soft tissue tumours are fairly common in our environment from this
study .The pattern of soft tissue tumour in this environment is similar to what has
been observed in previous studies from Nigeria and other parts of the world.

HISTOPATHOLOGICAL PATTERN OF BENIGN SOFT TISSUE TUMOURS IN THE UNIVERSITY COLLEGE HOSPITAL, IBADAN, NIGERIA-A RETROSPECTIVE STUDY: 1970-2002