Incontinentia Pigmenti (Bloch–Sulzberger Syndrome)

Figure 2.25 A: Oculocutaneous albinism (Courtesy of Dr. Paul Getz) B: Hypomelanosis of Ito C: Incontinentia pigmenti (Reprint from Burgdorf WH, Plewig G, Wolff HH, Landthaler M, eds. Braun-Falco’s Dermatology. 3rd ed. Heidelberg: Springer; 2009)
Figure 2.25
A: Oculocutaneous albinism
(Courtesy of Dr. Paul Getz)
B: Hypomelanosis of Ito
C: Incontinentia pigmenti
(Reprint from Burgdorf WH,
Plewig G, Wolff HH,
Landthaler M, eds. Braun-
Falco’s Dermatology. 3rd ed.
Heidelberg: Springer; 2009
)
(Figure 2.25C)
  • XLD, NEMO gene mutation (NFκβ essential modulator), lethal in males; cutaneous lesions follow lines of Blaschko
  • Four stages:

  •    
     
     Vesicular stage: vesicles in linear/whorled streaks
     Verrucous stage: hyperkeratotic linear plaques
     Hyperpigmented: linear/whorled hyperpigmentation
     Hypopigmented: hypopigmented thin streaks
     
       

  • Associated with patchy scarring alopecia, absent or peg-shaped teeth, CNS abnormalities (seizures, delayed psychomotor development), ocular disease (retinal vascular abnormalities, blindness)