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Neurocutaneous Syndromes
Neurocutaneous Syndromes Review for American Board of Pediatrics (ABP) Board Certification Exam
12
Medical
Professional
10/14/2012

Additional Medical Flashcards

 


 

Cards

Term

NF1

(Diagnosis requires 2 of 7 clinical criteria)

Definition
  • Autosomal Dominant
  • Neurofibromas (>=2) [1, if plexiform]
  • Optic Gliomas
  • Cafe-au-lait (>=6) (5mm prepubertal, 15mm postpubertal) (+Woods lamp)
  • Axillary/Inguinal Freckling
  • Lisch Nodules (>=2) (often not before school age)
  • Osseous lesions (e.g.- sphenoid dysplasia, pseudoarthrosis)
  • + FH (parent, child,sib)
Term
NF2
Definition
  • Autosomal Dominant


  • Acoustic Neuroma
  • Schwannoma
  • Glioma
  • Meningioma
Term

NF2 (diagnostic criteria)

(Only one required)

Definition
  • Bilateral CN VIII mass on MRI with Gadolinium
  • +FH AND any of the following
    • Unilateral CN VIII mass on MRI with Gad
    • Neurofibroma
    • Meningioma
    • Glioma
    • Schwannoma
    • Posterior capsule cataract (at youngn age)
Term
Tuberous Sclerosis
Definition
  • Autosomal Dominant (60-70% spontaneous mutations)
  • Ash Leaf Spots
  • Shagreen Patch (often over lumbar spine)
  • Cafe-au-lait
  • Ademona Sebaceum
  • Cardiac Rhabdomyomas (tend to regress)
  • Mental Retardation
  • Epilepsy (any and all types)
    • Infantile spasms (in 25%)
  • Renal disorders
    • Angiolipomas (progressive)
    • Renal cysts (progressive)
    • Renal cell carcinomas may develop rarely

In asymptomatic TS, no Tx indicated. Need yearly F/U and genetic counseling

Term
Klippel-Trenaunay-Weber Sx
Definition
  • Port-Wine Stain (Does NOT occur on face--> NO neural sequelae
  • Hemangiomas
  • Hemihypertrophy
  • Complications
    • AV fisulae
    • CHF
    • Cellulitis
    • Thrombocytopenia
Term
Sturge-Weber Syndrome
Definition
  • SPORADIC inheritance
  • Port-Wine Stain (CN V1) - 100%
  • Seizures (often intractable) - 75% by 1 year
  • Glaucoma - 60% by 1 year
  • Developmental Delay - 60%
  • Extremity Port-Wine stain - 50%
  • Leptomeningeal angiomas (ipsilateral)--> intracerebral calcifications
Term

Tuberous Sclerosis

(Diagnostic Criteria)

 

2 Major or 1 Major/2 Minor

"Probable" if 1 Major/1 Minor

Definition
  • Major
    • Adenoma Sebaceum (Facial angiofibromas)
    • Ungual/Subungual fibromas
    • >3 Ash-Leaf spots (hypomelanotic macules) [+ Woods Lamp]
    • Shagreen Patch
    • Multiple retinal hamartomas
    • Cortical tuber
    • Subependymal giant-cell astrocytoma
    • Cardiac Rhabdomyomas
    • Subependymal nodule (myomas)
    • Lymphangiomyomatosis
    • Renal  angiomulipomas
  • Minor
    • Multiple dental pits
    • Hamartomatous rectal polyps
    • Bone cysts
    • Gingival fibromas
    • Multiple renal cysts
    • Nonrenal (often cortical) hamartomas
    • Retinal achromic patches
Term
Incontinentia Pigmenti
Definition
  • X-Linked Dominant (LETHAL IN MALES)
  • Skin Changes
    • Vesicular
    • Papular
    • HYPERpigmentation
    • Atrophy
    • Alopecia
    • Nail/Dental abnl ("Peg-shaped Teeth")
    • Mental Retardation
    • Swirled cutaneous pattern due to mosaicism or Lyonization
Term
Hypomelamosis of Ito
Definition
  • Autosomal Dominant (or sporadic)
  • HYPOpigmented whorls, streaks and patches along Blaschko's Lines)
  • Dental anomalies
  • Colobomas/cataracts
  • Limb anomalies
  • Seizures
  • MR
  • Neuronal migration anomalies
Term
Waardenburg Syndrome
Definition

Autosomal Dominant (rarely AR)

 

  • White Forelock
  • Iris Heterochromia
  • Cochlear Deafness
  • Albinotic fundi
  • Leukoderma
  • Occasional cleft palate, neural tube defects and Hirschsprung
Term
Albinism
Definition

Autosomal Recessive / X-Linked Recessive

 

Nystagmus

Foveal hypoplasia

 

Complications:

Decreased Vicual Acuity

Hearing Loss

Skin Cancer


Classification:

Oculocutaneous

Ocular

Term
Proteus Syndrome ("Elephant Man")
Definition
  • SPORADIC inheritance
  • Disproportionate growth (limbs, skull, and/or internal organs - hepatosplenomegaly)
  • Lipomas
  • Lymphangioma
  • Hemangiomas (esp. Truncal)
  • Proximal limb girth asymmetry
  • Occasional CNS anomalies, dev. delay
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