[Self-healing Hashimoto-Pritzker histiocytosis].
Congenital 'self-healing' Langerhans' cell histiocytosis of Hashimoto-Pritzker is a rare disease occurring mainly in the neonatal period.


METHODS
We report on the case of a newborn with widespread eruption since birth, consisting of nodules, papulonodules, sometimes with ulcerations and scabs, concerning all the body, with a predilection for the cephalic area and the scalp, without general abnormalities. The clinical examination, histopathological data, immunohistochemistry, and the benign evolution in nine-, 18- and 24-month periods without particular treatment define the diagnosis of congenital self-healing Langerhans' cell histiocytosis of Hashimoto-Pritzker.


CONCLUSIONS
The position of this disease among the Langherans' cell histiocytoses is probably situated at the benign pole. This is a benign self-healing disease restricted to the skin and the prognosis is good (self-involution). It is important to eliminate a malignant form of other Langerhans' cell histiocytosis such as Letterer-Siwe disease by a checkup searching for a visceral disease. The good prognosis should not lead to forget the possibility of error or forms of relapses; it is therefore imperative to have a rigorous, regular and especially long-term follow-up.
Chevrel
J
J
Service de pédiatrie, centre hospitalier, Dax, France.
Barba
G
G
Legrain-Lifermann
V
V
Lecluse-Mendes
I
I
Bourgade
C
C
Bioulac-Sage
P
P
Barbier
R
R
D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000473:pathology*; D008297:Male; D011379:Prognosis; D012871:Skin Diseases / Q000473:pathology