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Actinic keratosis - Coggle Diagram
Actinic keratosis
Squamous cell carcinoma in situ
Acanthosis
Hyperchromatic
Parakeratosis
Thick band
Basketweave is normal
Squamous atypia
Full thickness
Melnoma won't have confluent zones
Loss of granular cell layer
Pagetoid spread
adnexal sparing
Invasive squamous cell carcinoma
Necrosis
Dying keratinocytes
Pink keratin
Negatives
Pallisading
clefting
mucin
pink cytoplasm towards base
eyeliner sign
normal bland basal layer
vacuoles
melanocytes have nuclei stuck to side
Squamous atypia
Partial thickness
Totally confluent
Melanocytes spread out more
Busy looking basal layer
Glassy at the top
keratin filled
thickened keratin
different colour
to overlying adnexa
parakeratosis
slight acanthosis