SUMMARY This would appear to be the first case of swimming pool granuloma recognized and reported in Australia. An organism identified as mycobacterium balnei was isolated from the lesion. Wide excision and split skin graft has given a satisfactory result and at present no sign of relapse of the disease can be found. Adequately wide excision and the technique of surface occlusion of the infected skin lesion prior to surgery may have helped to prevent relapse of the lesion. A new type of local therapy, which however has not been applied in this case, namely the application of heat therapy to the diseased skin, has been suggested for future cases which do not show spontaneous remission within a reasonable period, and the rationale of this new treatment has been discussed. Although most overseas reports have been of epidemics caused by gross infection of swimming pools, such sporadic cases, as the one reported here, must occur. The awareness of such an entity will facilitate the recognition of further cases.
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