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Published on: March 26, 2019
Multimodal Imaging Features in a Fatal Case of Incontinentia Pigmenti with Severe Neurological Involvement: A Case
Song Zhang1, Lili Jiang2, Mingshun Wan3
1Department of Neurosurgery, Hangzhou Children's Hospital, Hangzhou Normal University, Hangzhou City, China.
Introduction:
Incontinentia Pigmenti (IP) is a rare X-linked dominant neurocutaneous disorder characterized by cutaneous, ocular, and neurological manifestations. We present a fatal case of IP with atypical neuroimaging findings.
Case Presentation:
A 4-month-old female infant presented with generalized hyperpigmentation, palatal cleft, and acute encephalopathy. Initial non-contrast cranial Computed Tomography (CT) demonstrated cerebellar hypoattenuation with punctate calcifications and ventriculomegaly. Subsequent Magnetic Resonance Imaging (MRI) demonstrated extensive ischemia, edema, and hemorrhagic lesions in the brainstem, cerebellum, and cervical spinal cord. Trio-based whole-exome sequencing did not detect pathogenic variants in the Inhibitor of Nuclear Factor Kappa-B Kinase Regulatory Subunit Gamma (IKBKG) gene (NM_003639.3).
Conclusion:
This case highlights the critical role of neuroimaging in diagnosing IP-related neurological complications and emphasizes the need for early multimodal imaging evaluation. The discordance between clinical phenotype and genetic findings warrants further investigation into novel pathogenic mechanisms.
