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System – Integumentary (body surfaces)

This category comprises disorders of the integumentary system that cause damage to skin, nails and hair and/or impaired function.

Nails, Rounded With Curved Ends

What Are Rounded Nails With Curved Ends? Rounded, curved, dark and dry nails are a well known feature of vitamin B12 deficiency. Q: How does vitamin B12 deficiency cause the nails to grow this way? A: Vitamin B12 deficiency affects ...

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Hair, Fine With Rough Texture

What Is Fine Hair With Rough Texture? Fine hair (lower diameter across the width) with rough texture is an abnormal hair shaft feature altered from the normal diameter and smooth quality of hair. Q: What is the normal diameter and smooth quality of ...

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Diabetes Mellitus, Type I

What Is Type I Diabetes Mellitus? Type 1 diabetes mellitus (T1DM), also termed type 1A, is an inherited autoimmune disorder in which anti-islet autoantibodies destroy the islet cells of the pancreas that secrete insulin hormone. Type 1 diabetes mellitus was formerly ...

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