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Introduction: Pachygyria is a subtype of the lissencephaly spectrum that is secondary to neuronal migration disorders during embryogenesis, it may be associated with other extracortical anomalies such as cerebellar hypoplasia. Lissencephaly with cerebellar hypoplasia is a very rare malformation. In this form we can also observe a tigroid pattern of the white matter. Case Report: We report a very rare case of an infant with pachygyria with cerebellar hypoplasia and a tigroid appearance of the substance secondary to a neuronal migration disorder. Conclusion: Lissencephaly with hypoplasia of the cerebellum is a very rare malformation. The tigroid pattern of the white matter can be observed in neuronal migration disorders. Magnetic resonance imaging (MRI) of the brain is the key examination in the exploration of lissencephaly.

Introduction: Neuroblastoma is the third most common malignancy in pediatrics, subcutaneous metastases of antenatal neuroblastoma are described in the literature and they represent 1% of secondary localizations of neuroblastoma. Case Report: We report the case of a 12-month-old male infant with an antenatal neuroblastoma of the left adrenal gland revealed by inguino-scrotal and forearm subcutaneous nodules whose anatomopathological study was in favor of cutaneous metastases of a neuroblastoma. Conclusion: Neuroblastoma is a very frequent embryonic tumor in pediatrics, subcutaneous metastases are often revealing of antenatal neuroblastoma, the diagnosis of certainty is essentially based on anatomopathological study.