Peds Derm Flashcards
Name the typical triad of Hand-Schiller-Christian Disease
Diabetes insipidus
Bone lesions *osteolytic bone lesions, cranium
Exopthalmos
This is a LCH, onset between 2-6
Acute disseminated form of LCH, presents before age 2
Letterer-Siwe Disease
LCH presenting in older children, a localized form of LCH
-asymptomatic granulomatous lesions involving the bone (cranium), spontaneous fractures
Eosinophilic Granuloma
What is another name for congenital self healing reticulohisticytosis, a self limited version of LCH limited to the skin
Hashimoto-Pritzker disease
Hypertrichosis and hyperpigmentation on the medial thighs
-associated with low height, hyperpigmentation, hearing loss, heart anomalies, hearing loss, hyperglycemia
H syndrome (defect in SLC29A3), encodes nucleoside transported
What do you manage the DI of Hand-Schiller-Christian disease with?
Vasopressin
Remember this is a LCH with a triad of osteolytic bone lesions, diabetes insipidus, and exopthalmos
Most common location for JXG
Head and neck
What percentage of JXG appear within the 1st year of life?
75%
What two diseases is JXG associated with?
NF and JMML
What other specialty do you want to send a kid to if they have multiple JXGs?
Optho
Risk factors for ocular JXG
> 2 years old or multiple JXGs
Numerous red/brown macules and papules on the face in an infant
Self limited
No internal involvement
Looks like JXG but without Touton giant cells
Benign cephalic histiocytosis
What is the adult form of benign cephalic histiocytosis?
Generalized Eruptive Histiocytosis (both likely JXG variants)
How can you tell the difference between Sclerema Neonatorum and Subcutaneous Fat Necrosis of the Newborn on pathology?
Sclerema Neonatorum has LESS inflammation. Subq fat of the newborn is a localized version of Sclerema neonatorum, both are panniculitis, and present as woodyness of the skin. Subq fat of the newborn will have an intense inflammatory infiltrate on path
What type of infiltrate do each of these subcorneal pustules contain?
Transient neonatal pustular melanosis
Erythema Toxicum Neonatorum
Neonatal Cephalic Pustulosis
Transient neonatal pustular melanosis - neuts
E tox - eos
Neonatal cephalic pustulosis - neuts
What drug in hypothyroid moms can cause aplasia cutis in the baby?
Methimazole
What syndrome has aplasia cutis of the scalp with skull defects, CMTC, and limb defects?
Adams-Oliver-Syndrome (think abt the Adams family - creepy girl with a wide part, cmtc and short limb)
Bilateral temporal aplasia cutis, abnormal eyelashes, leonine facies, upward slanting eyebrows, Peurto rican
Seitles Syndrome *setters syndrome - like a volleyball setter
Defect in the TWIST2 gene
Dystrophic EB + aplasia cutis
Bart Syndrome
Another name for Trisomy 13
Pattau Syndrome
Most common eye finding associated with CMTC
Glaucoma
Leading infectious cause of deafness and mental retardation in newborns
CMV
Congenital HSV infections characteristically harbored in what part of the brain
Temporal lobes
Which type of HSV is most common in congenital HSV?
What percentage of these infections are aquired perinatally?
HSV2
85%
What is the mortality rate of untreated congenital HSV infections?
50-75%
Name three congenital infections that give you blueberry muffin baby
CMV
Rubella
Toxoplasmosis
Which congenital infection gives you hepatosplenomegaly?
Rubella
What is Higoumenakis sign?
Congenital thickening of the medial aspect of the clavicle in LATE congenital syphilis
Which diaper dermatitis is essentially acrodermatitis enteropathica with seizures?
Multiple carboxylase deficiency (deficiency in holocarboxylase)
What percentage of psoriasis presents before age 15?
25%
Treatment for PLEVA/PLC
Oral erythromycin
Most common type of juvenille PRP
Type IV Circumscribed juvenille form
*(type III is like classic PRP, but type IV is actually the most common)
Which type of juvenille PRP is like classic adult PRP?
Type III (Classic Juvenille form)
What does atypical juvenille PRP (Type IV) present like?
Like type III (classic PRP) but with scleroderma like changes as well
Lichen striatus will persist with what type of lesion months to years after the initial papular stage. This is usually the presentation clinically
Hypopigmentation
What does lichen striatus look like on pathology?
Lichenoid infiltrate around ECCRINE glands
KP atrophicans faciei/ulerythema ophyrogenes (which is the term for KP atrophicans of the lateral 1/3 of the eyebrows) occurs in what syndrome?
Noonan Syndrome
Ulerythema ophyrogenes
A/w Noonan syndrome. KP atrophicans of the lateral 1/3 of the eyebrow
Which have an increased number of melanocytes: lentigos or ephelides?
Lentigos. Ephelides have a normal number
Which do ephiledes have:
Increased melanocytes? Or increased melanosomes?
Increased melanosome, normal melanocytes (vs lentigenes which have an increased number of melanocytes)
What are the sizes for:
Small congenital nevus
Medium congenital nevus
Large congenital nevus
Small: <1.5cm
Medium: 1.5-10cm
Large: 10-20
Giant: >20cm
Schimmelpenning syndrome
Epidermal nevus syndome. Basically epidermal nevi or ILVEN plus underlying CNS symptoms
PEODEN
Porokeratotic eccrine and osteodermal duct nevus
- JGB2 mutation
- kid with a large poor and keratotic spicules on the face
- their children could have KID syndrome *so screen for oral SCC!!
What tumors can arise out of a nevus sebaceous?
Trichoblastoma
SPEP
BCC!
Nevus sebaceous has been linked to what gene?
PTCHD!
Multiple pilomatricomas may be associated with what disease?
And what cell protein is upregulated?
Myotonic Dystrophy
Upregulation of beta-catenin
What percent of plexiform NF can undergo malignant transformation?
2-13%
What percentage of children with urticaria pigmentosa get pulmonary symptoms?
0%! Trick questions! Children with UP do NOT get any pulmonary sxs. Kids with diffuse cutaneous mastocytosis do get pulmonary symptoms and also GI symptoms
Most common extracutaneous manifestation of systemic cutaneous mastocytosis?
Bone marrow»_space; GI. *boards question
Cellular markers for mastocytosis
CD34, CD117. (*CD117 so you can use imatinib to help these kids)
What can you give these kids who have GI symptoms from diffuse cutaneous mastocytosis?
Cromyln
Name three syndromes associated with lipomas
Gardner
Bannayan Riley Rulvaca Syndrome
MEN-1
Name two genoderms a/w aphasia cutis congenital
Adams-Oliver syndrome
Bart Syndrome
Teratogens a/w aplasia cutie
Methimazole
What kind of giant cells are found in JXG?
Touton giant cells
What percentage of JXGs have ocular involvement? And what kind of ocular involvement do you worry about?
0.5% can get Glaucoma or hyphens
What two stains are the Langerhans cells in LCH positive for?
S100+, CD1a+
Treatment for subcutaneous fat necrosis of the newborn
Screen for HYPERcalcemia for 6 months
How can you tell the difference on path between Sclerema neonatorum vs subcutaneous fat necrosis of the newborn?
Sclerema Neonatorum lack granulomatous inflammation
What type of laser would you treat a nevus of ota with?
Q switched laser - Ruby, Alexandrite, or ND-YAG
What branchial derivative is the tragus from? (Brachial arch vs cleft)
FIRST Branchial arch
Name the findings of PELVIS syndrome
Perineal hemangioma External genitalia malformation Lipomeningocele Vesicorenal abnormalities Imperforate anus Skin tag
Brown, orange, crusted plaques with vesicles and bulla in the perianal and perioral areas
Acrodermatitis enteropathica (zinc deficiency)
*inherited form is when you wean off breast milk
What is the AR neonatal form of holocarboxylase synthetase?
Essentially inherited biotin deficiency! Presents pretty much like acrodermatitis enteropathica
Inherited form of Biotin deficiency
Holocarboxylase synthetase deficiency (AR)
A midline cervical cleft can contain what kind of ectopic tissue?
Salivary tissue
Three congenital infections which cause “blueberry muffin baby”
CMV
Toxoplasmosis
Rubella
Most common symptom of congenital rubella
Deafness (remember you also get blueberry muffin baby)
What trimester does getting this infection make blueberry muffin baby worse? (Rubella, toxo, CMV)
FIRST TRIMESTER
Early or late congenital syph: Saber shins
Late
Early or late congenital syph: Hutchison’s teeth
Late
Early or late congenital syph: snuffles
Early
Early or late congenital syph: blueberry molars
Late
Early or late congenital syph: Higoumenakis sign
Late
Early or late congenital syph: Parrot’s psuedoparalysis
Early
Early or late congenital syph: Parrots lines
Late (Parrots psuedoparalysis is an early sign)
Early or late congenital syph: tabes dorsalis
Late
Early or late congenital syph: Cluttons joints
Late (symmetric swelling of the knees
Are the Langerhans cells in LCH CD1a+ or not?
Yes they are positive for CD1a+
This type of LCH presents before age 2 as multiple small pink papules in a seborrheic distribution. Represents an acute disseminated form. Natal teeth
Letterer-Siwe-Disease
“Little sweetie disease”
Neonatal varicella occurs when mom is infected in what time frame of the pregnancy?
7 days before delivery to 2 days after delivery
Vs fetal varicella occurs when mom is infected in the first trimester
What is the clinical presentation of neonatal varicella?
Infant born with large blisters (Essentially like chicken pox just much more widespread) *difference between neonatal/congenital varicella and childhood varicella is that all the lesions in neonatal varicella are in the same stage of development vs childhood, they are all at different stages of development
What is the clinical presentation of fetal varicella?
Born with large stellate scars. Also limb paresis, chorioretinitis, hypoplasia
Neonatal acne caused by which organism?
Malassezia
Child with Down’s develops a severe pustular reaction on the face, what lab should you order and what should you be concerned about?
CBC with diff - worried about leukemia! Can present as a pustular reaction on the face in Trisomy 21 patients