Subcutaneous emphysema of the leg.
D000368:Aged; D001442:Bacteroides Infections / Q000150:complications*; D001441:Bacteroides fragilis; D004646:Emphysema / Q000209:etiology*; D006801:Humans; D007866:Leg; D008297:Male; D008875:Middle Aged; D013352:Subcutaneous Emphysema / Q000209:etiology*