1. Environmental diseases

2. Adverse reaction to minocycline

3. Diffuse blue-gray pigmentation of the forearm, secondary to minocycline administration

4. Deposition of drug metabolite/iron/ melanin pigment particles in the dermis

5. DCMP Chronic cocaine use

7. Heroin Examination under polarized light often highlights trapped talc crystals, sometimes enclosed within foreign body giant cells

8. chronic marijuana smoking: Chronic bronchitis

12. Laceration of the scalp

13. Laceration of the scalp: The bridging strands of fibrous tissues

14. Contusion resulting from blunt trauma. The skin is intact, but hemorrhage of subcutaneous vessels has produced extensive discoloration

15. partial-thickness burns

16. full-thickness burns

17. Vascular changes and fibrosis of salivary glands produced by radiation therapy of the neck region

18. Normal salivary gland

19. fibrosis caused by radiation

20. fibrosis and vascular changes consisting of fibrointimal thickening and arteriolar sclerosis

21. Marasmus. Note the loss of muscle mass and subcutaneous fat; the head appears to be too large for the emaciated body

22. Kwashiorkor. The infant shows generalized edema, seen as ascites and puffiness of the face, hands, and legs

23. Rickets

24. Rickets.

25. Normal costochondral junction of a young child. Note cartilage palisade formation and orderly transition from cartilage to new bone

26. Rachitic costochondral junction in which the palisade of cartilage is absent. Darker trabeculae are well-formed bone; paler trabeculae consist of uncalcified osteoid

27. Note bowing of legs as a consequence of the formation of poorly mineralized bone in a child with rickets

28. Bowleg deformity (genu varum)

29. Frontal bossing

30. rachitic rosary

31. pigeon breast deformity

32. Central, or visceral, obesity

33. Pear Shape obesity peripheral Obesity