Wednesday, 18 February 2015


Blaschkitis is a unilateral remitting and relapsing eruption of itchy inflammatory vesicles and papules (resembling eczema) that occurs usually on the trunk in adults  following Blaschko’s linesIt would be difficult to distinguish from linear Grover’s disease. Blaschko's lines pattern is attributed to the lines of migration and proliferation of epidermal cells during embryogenesis. The lines do not correspond to any known nervous, vascular or lymphatic structures.

The histopathology is more eczematous (spongiotic) than lichenoid. Some have considered it to represent an adult version of lichen striatus and actually, the acronym BLAISE (Blaschko linear acquired inflammatory skin eruption) has been used to cover both. Blaschkitis (adults) is rarer, more itchy, more papulovesicular, more extensive, resolving more rapidly, and relapsing more frequently than lichen striatus (children). BLAISE is best regarded as a description rather than a diagnosis, pending identification that is more precise. Steroids may be effective.

This page was last updated in February 2015

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Main Works of Reference List (The first eight are my top favourites)

  • British National Formulary
  • British National Formulary for Children
  • Guidelines (BAD - BASHH - BHIVA - Uroweb)
  • Oxford Handbook of Genitourinary Medicine, HIV, and Sexual Health
  • Oxford Handbook of Medical Dermatology
  • Rook's Textbook of Dermatology
  • Simple Skin Surgery
  • Weedon's Skin Pathology
  • A Concise Atlas of Dermatopathology (P Mckee)
  • Andrews' Diseases of the Skin
  • Andrology (Nieschlag E FRCP, Behre M and Nieschlag S)
  • Bailey and Love's Short Practice of Surgery
  • Davidson's Essentials of Medicine
  • Davidson's Principles and Practice of Medicine
  • Fitzpatrick's Colour Atlas and Synopsis of Clinical Dermatology (Klaus Wolff FRCP and Richard Allen Johnson)
  • Fitzpatrick’s Dermatology in General Medicine
  • Ganong's Review of Medical Physiology
  • Gray's Anatomy
  • Hamilton Bailey's Demonstrations of Physical Signs in Clinical Surgery
  • Hutchison's Clinical Methods
  • Lever's Histopathology of the Skin
  • Lever's Histopathology of the Skin (Atlas and Synopsis)
  • Macleod's Clinical Examination
  • Martindale: The Complete Drug Reference
  • Oxford Handbook of Clinical Examination and Practical Skills
  • Oxford Textbook of Medicine
  • Practical Dermatopathology (R Rapini)
  • Sexually Transmitted Diseases (Holmes K et al)
  • Statistics in Clinical Practice (D Coggon FRCP)
  • Stockley's Drug Interactions
  • Treatment of Skin Disease: Comprehensive Therapeutic Strategies
  • Yen & Jaffe's Reproductive Endocrinology