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Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

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Nội dung chi tiết: Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

12PHOTODERMATOSES AND PHYSICALINJURY AND ABUSEPHOTODERMATOSESGeneral•Sun exposure in childhood is normal; excessive sun exposure may result in sunburn

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2n (toxic response) or, in some cases, abnormal reactions (e.g. lupus)•limning is a sign of ultraviolet (UV) injury, and should not l)e considered ‘hea

lthy’•long-term consequences oi chronic Sim damage: skin cancer and photoagingPhototoxicity/sunburnMajor points• Sunburn depends upon a number of fact Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

ors:1Length oi exposure2Skin phototype (Table 12.1)3- Direction of sun’s rays (summer > winter)4lime of day (10.00 to 15.00 arc strongest rays)5Geogra

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

phical location (nearer equator)6Altitude (higher > lower)7Age (infants > young children > adults)•Erythema and tenderness begin 30 minutes to 4 hours

12PHOTODERMATOSES AND PHYSICALINJURY AND ABUSEPHOTODERMATOSESGeneral•Sun exposure in childhood is normal; excessive sun exposure may result in sunburn

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2cheeks, shoulders) with less reaction in shielded areas (e.g. under nose and chin, and on upper eyelids)•With intense exposure: blistering, edema and

later desquamation1Sleep often disturbed2Tenderness of.skin3Reduced sweatingTable 12.1Skin phototypesSkin typeReactivity to sunExamplesIAlways burns; Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

never tansLight skin, blond or rod hair, blue or brown eyes, and freckles (e.g. Celts)IIAlways burns; tans minimally or lighttyLight skin; rod. blond,

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

or brown hair; blue, hazel or brown eyes (e'g. Northern Europeans)IIISometimes burns; tans gradually and uniformlyBrown hair, blue or brown eyes (e.g

12PHOTODERMATOSES AND PHYSICALINJURY AND ABUSEPHOTODERMATOSESGeneral•Sun exposure in childhood is normal; excessive sun exposure may result in sunburn

Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2in; never burns, always tans wellMedium brown skin, dark brown hair (e.g. Middle Easterners, Latinos)VIDeeply pigmented; never burns, always tans well

Dark skin, dark hair (e.g. Black Africans)200Illustrated Manual of Pediatric DermatologyFigure 12.1 Phototoxicity - from excessive sun exposureFigure Ebook Illustrated manual of pediatric dermatology - Diagnosis and management (2nd edition): Part 2

12.2 Phototoxicity from doxycycline4In severe burns, collapse from hear stroke, fever, headache and fatigue

12PHOTODERMATOSES AND PHYSICALINJURY AND ABUSEPHOTODERMATOSESGeneral•Sun exposure in childhood is normal; excessive sun exposure may result in sunburn

12PHOTODERMATOSES AND PHYSICALINJURY AND ABUSEPHOTODERMATOSESGeneral•Sun exposure in childhood is normal; excessive sun exposure may result in sunburn

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