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Pityriasis versicolorPityriasis versicolorPityrosporum orbiculare (Malassezia furfur).Pityrosporum orbiculare (Malassezia furfur).
EczemaEczema
AtopicAtopic Irritant Contact Irritant Contact
dermatitis eg ringdermatitis eg ring
VaricoseVaricose NumnularNumnular
Nickel Nickel
Nickel dermatitis – Nickel dermatitis – a type of allergic a type of allergic contact dermatitiscontact dermatitis
Allergic contact – Allergic contact – patch test patch test
Type 4 sensitivityType 4 sensitivity 72 hours72 hours
Urticaria - dermatographismUrticaria - dermatographism
Type 1 – prick Type 1 – prick tests immediatetests immediate
Solar keratosisSolar keratosis Skin CancersSkin Cancers
Solar KeratosesSolar Keratoses• PremalignantPremalignant
• Sun exposed areasSun exposed areas
• Non pigmentedNon pigmented
• RougheningRoughening
Seek HelpSeek Help Treatment – liquid Treatment – liquid
nitrogennitrogen
BCCBCC Basal Cell carcinoma (rodent ulcer) Basal Cell carcinoma (rodent ulcer)
• CommonCommon• Sun exposed areasSun exposed areas• Whipcord edgeWhipcord edge• Central ulcerationCentral ulceration• Locally invasive onlyLocally invasive only• Slow growingSlow growing• Danger near eyeDanger near eye
Treatment - excisionTreatment - excision
Squamous cell carcinomaSquamous cell carcinomaSquamous Cell carcinomaSquamous Cell carcinoma
• Less commonLess common
• Poorly defined edgePoorly defined edge
• Persistent scaly patchPersistent scaly patch
• Not usually pigmentedNot usually pigmented
• Sun exposed areasSun exposed areas
• May be a nodularMay be a nodular
• May metastasise May metastasise
Treatment-excisionTreatment-excision
MelanomaMelanoma Melanoma – incidence increasingMelanoma – incidence increasing
Family HistoryFamily History
Fair skinFair skin
Legs in womenLegs in women
Back in menBack in men
History of burning ( cf blistering )History of burning ( cf blistering )
MelanomaMelanoma MelanomaMelanoma
AsymmetryAsymmetry
Varied PigmentVaried Pigment
Change in shape or colour or sizeChange in shape or colour or size
Bleeding, ItchingBleeding, Itching
Satellite lesionsSatellite lesions
MelanomaMelanoma MelanomaMelanoma
Can spread easilyCan spread easily
Early excision can cureEarly excision can cure
Prognosis related to depthPrognosis related to depth