eg. Parotid swelling or Pt fat?
A vascular reaction involving the deep dermis or subcutaneous or submucosal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries, and characterised by the development of giant wheals.
SLIDE: pigmented lesion
- Preauricular lesion of L ear
- Oval in shape, size 4cm x 2cm
- Surface pigmented, irregular
- Pigmented lesion: basal cell carcinoma, melanoma
- Surface: cauliflower papillary surface
- Surrounding skin bloodied (biopsy taken)
- Attachment: arises from skin
- Even if don't know Dx -> pigmented papilloma (clinical Dx)
SLIDE: (non-pigmented) papilloma
- Viral in origin
- Arising from skin
- Surrounding skin normal
- Must examine LN
SLIDE: bluish discoloration behind lobe (sebaceous cyst)
- Also has keloid on front of lobe
SLIDE: previous burns
- Hypertrophic scars
- Keloids
- Diffuse (not localised)
- Pinkish discoloration
SLIDE
- Papillary, origin from skin (upper eyelid)
- Pedunculated
- Soft-firm (some fibrous tissue)
SLIDE
- Nevi (nevus) - moles near clavicle
- Papillary surface (cauliflower)
- Examine LN (cervical, axillary)
SLIDE
- Consistency of lipoma, not papillary
- Lipoma = subcutaneous
- Intradermal lipoma: break through skin
- No pedicle (sessile: attached by a broad base, as opposed to being pedunculated or stalked)
SLIDE
- Lumps on forehead - one soft (lipoma), one hard ((osteoma)
- Osteoma: very rare, lump in middle of forehead, not malignant
SLIDE
- Appears inflammatory
- On palpation, not bacterial, due to stretching of skin
SLIDE
- O/I: obvious swelling
- P/E: multiple LN
- Some things not obvious on inspection; only on palpation
SLIDE
- Preauricular swelling (anterior to LN)
- Preauricular sinus settled by ABX
SLIDE
- Lump on one side of neck
- If not visible anteriorly, may be lateral; if not lateral may be felt on palpation
SLIDE
- Anterior neck, level of Adam's apply
- Bluish discoloration, irregular
- Diffuse swelling
- Soft and compressible
- Haemangioma: swelling of BV