KWANGSHIN KIM / SCIENCE PHOTO LIBRARY KWANGSHIN KIM / SCIENCE PHOTO LIBRARY
Ultrathin section of Proplonlbacterium acnes. Actively growing cells. Anaerobic gram-positive bacilli responsible for acne with follicular inflammatory infiltrations. Acne is characterised either by papules about comedones with black centres or pistules, or hypertrophied nodules caused by overgrowth of connective tissue. In the indurative type, the lesions are deep-seated and cause scarring. Face, neck and shoulders are common sites. TEM Magnification = x23,000 at 70mm.
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