Multiple hypochromic or achromic macules in children and risk of tuberous sclerosis

To describe in a large paediatric cohort the characteristics of hypopigmented and depigmented (hypochromatic and achromic) macules with no clear diagnosis but potentially evocative of tuberous sclerosis (TS). This was a retrospective multicentre study performed between 2010 and 2017 at a reference c...

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Bibliographic Details
Published in:	Annales de dermatologie et de vénéréologie 2018-12, Vol.145 (12), p.741-748
Main Authors:	Battini, M, Casassa, E, Maza, A, Dreyfus, I, Mazereeuw-Hautier, J
Format:	Article
Language:	fre
Subjects:	Adolescent Angiomyolipoma - epidemiology Child Child Behavior Disorders - etiology Child, Preschool Developmental Disabilities - etiology Diagnosis, Differential Epilepsy - etiology Female Heart Neoplasms - epidemiology Humans Hypopigmentation - congenital Hypopigmentation - etiology Infant Kidney Neoplasms - epidemiology Male Retrospective Studies Rhabdomyoma - epidemiology Tuberous Sclerosis - complications Tuberous Sclerosis - diagnosis Tuberous Sclerosis - epidemiology
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Summary:	To describe in a large paediatric cohort the characteristics of hypopigmented and depigmented (hypochromatic and achromic) macules with no clear diagnosis but potentially evocative of tuberous sclerosis (TS). This was a retrospective multicentre study performed between 2010 and 2017 at a reference centre for rare skin diseases; it included all children consulting for hypochromic and achromic macules. A descriptive analysis was made of the characteristics of macules with no clear diagnosis, enabling them to be classified in three secondary groups: TS certain, TS ruled out, TS uncertain. Of the 3300 children seen during this 7-year period 7,265 were consulting for hypochromic or achromic macules, with no clear diagnosis in 18 cases: 7 girls and 11 boys of median age at 7.21 years (range: 4 months to 16 years and 7 months). The lesions were congenital in 7 cases. The number of macules varied, with over 20 in some cases. The majority were in the form of ash-leaf spots, followed by the oval form. Two children were diagnosed at clinical examination, and 16 underwent it is not examinations, resulting in a diagnosis of certain ST in 6 of these cases. No particular characteristics of the macules appeared to guide the clinical examination towards ST or isolated lesions. Café-au-lait spots were more frequent in the group in which ST was ruled out than in the other two groups: 67% vs. 33% and 33%. Neurologic involvement was more common in children with certain or uncertain ST than in children in whom ST was ruled out (83% and 67% vs. 11%). No identified characteristics of stains enabled the clinical examination to confirm or rule out tuberous sclerosis. Screening for acute any signs of ST is essential. Diagnostic efficacy is enhanced by additional exams.
ISSN:	0151-9638