Archive for the ‘Dermatology’ Category

Scalp layers

April 22, 2012

SCALP

  • Skin
  • Connective tissue
  • Aponeurosis (flat, broad tendons to join muscles to attaching structures)
  • Loose connective tissue
  • Periosteum (skull)

Sturge-Weber symptoms

February 19, 2012

STURGE

  • Seizures
  • Trigeminal port-wine stain
  • Unilateral weakness (often opposite side to stain)
  • Retardation (mental) in some patients
  • Glaucoma
  • Eye problems e.g. buphthalmos

Psoriasis pathogenesis

November 19, 2011

HARP

  • Hyperkeratosis – thickening of cornified layer
  • Acanthosis – epidermal thickening (3-5 times normal)
  • Rete ridge elongation (arrowheads)
  • Parakeratosis – retained nuclei in stratum corneum

Other features:

Absent granular layer and infiltration of neutrophils and activated lymphocytes (from dermis to epidermis)

Nail changes (occur in 50% of patients)

STOP

  • Subungual hyperkeratosis (proliferation under nail bed)
  • Thickening
  • Onycholysis (separation from the nail bed)
  • Pitting, ridging

Psoriasis types

November 19, 2011

PEP Guardiola (current FC Barcelona manager)

  • Plaque (chronic stable)
  • Erythrodermic – widespread erythema and ‘skin failure’
  • Pustular – widespread pustules with systemic upset
  • Guttate – small lesions, scaly, widespread; precipitated by strep. sore throat

(www.nialloloughlin.blogspot.com)

Diagnosis of malignant melanoma

March 6, 2011

ABCDE

  • Asymmetry
  • Border – irregular
  • Colour – non-uniform
  • Diameter >7mm (although >5mm is suspect; should refer)
  • Elevation

(www.cancerresearch.org)

Layers of the epidermis

February 25, 2011

Come, Let’s Get Sun Burned

(from superficial to deep)

When dealing with the different strata of the epidermis:
  • stratum Corneum
  • stratum Lucidum
  • stratum Granulosum
  • stratum Spinosum
  • stratum Basale.

(wikipedia)