34.9 MB (1.5 MB compressed)
2848 x 4288 pixels
24.1 x 36.3 cm ⏐ 9.5 x 14.3 in (300dpi)
DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
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Chronic plaque psoriasis on a 41-year-old man's torso. Psoriasis is a chronic dermatological condition where excessive growth can lead to scaly, thickened patches of skin. It is often stress-related, though sometimes no cause can be found. It can be treated with drugs or phototherapy, though the condition often recurs.
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