Cuando las uñas se caen: la onicomadesis

Abstract

Nail shedding. OnychomadesisEl desprendimiento completo de la uña (onicomadesis) es poco frecuente en la infancia y produce alarma entre los familiares y cuidadores de los niños. Puede deberse a una gran variedad de patologías locales y sistémicas o aparecer tras la exposición a determinados fármacos, aunque la mayoría de los casos son idiopáticos. Presentamos dos casos de onicomadesis con distintos factores desencadenantes. En ambos, las alteraciones ungueales se resolvieron espontáneamente en pocas semanas.Complete nail shedding (onychomadesis) in children is a rare condition and it may be a cause of concern among patient's family and caregivers. This condition has been associated with a great number of local or systemic diseases and drug exposure, although most cases are idiopathic. We present two patients with different triggering factors of onychomadesis. Nail changes resolved spontaneously in a few weeks in both cases. Meseguer Yebra P, et al. Cuando las uñas se caen. La onicomadesis Rev Pediatr Aten Primaria. 2013;15:161.e67-e70

Onicomadesis secundaria a enfermedad pie-mano-boca: una manifestación frecuente y motivo de preocupación de los padres

“…Beau's lines are transverse grooves in the nail that run from one lateral fold to the other, resulting from the temporary interruption in the formation of the nail plate. Onychomadesis would represent the most severe form of this phenomenon, since the causative agent would act for a longer period of time, with the involvement of the entire thickness of the nail plate and its consequent detachment from the nail bed 1 . This is a consequence of the complete and transitory inhibition of nail growth for one or two weeks.…”

“…Onychomadesis is the spontaneous complete detachment of the nail from its proximal end, which can affect hands and feet. Although it is not a common finding in children, its presence causes great concern among family members and caregivers 1 . Among the probable etiologies of the nail plate detachment are local causes, such as paronychia and trauma, in which one or two nails are usually affected; and systemic causes, in which several fingernails and toenails are affected 2 .…”

Las conductas de menor importancia en el Derecho de la competencia

“…Bien es cierto que estos conceptos jurídicos indeterminados no son contrarios al principio de legalidad sancionadora, siempre que su concreción sea razonablemente factible en virtud de criterios técnicos, lógicos o de experiencia, de tal forma que permitan prever la naturaleza y características esenciales de las conductas constitutivas de la infracción tipificada por la norma 283 .…”