<prompt> Which is not true about carbuncle?Infective gangrene of subcutaneous tissueCaused by staphylococcusDiabetics are more proneCaused by streptococcus  <response>: CARBUNCLEWord meaning of carbuncle is charcoal.It is an infective gangrene of skin and subcutaneous tissueStaphyIococcs aureus is the main culprit.Common site of occurrence is nape of the neck and back. Skin in this area is thick. Condition also can occur in shoulder, cheek. hand. forearm.It is common in diabetics and after forty years of age.It is common in males. 