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The swelling in the calf generally is not corelated to ankle and foot swelling especially if it has emerged after 1 week. In rare cases if a blood clot forms then it may result in the delayed bruising.
Mostly the bruising should subside on its own, if it doesnt then i would recommend you to visit your physician. He may advice you to go for a an ultrasound
to locate the clot if required.
Hope your problem resoves soon.