[Incontinentia pigmenti. Four patients with different clinical manifestations]

Oral Rehabilitation as Part of a Multidisciplinary Treatment in a Case Study of Pigmentary Incontinence

We present the clinical course of a 9-year-old female patient with Bloch-Sulzberger syndrome and severe neurological deficit that met the major (classic cutaneous signs) and minor (dental anomalies and retinal pathology) diagnostic criteria of Landy and Donnai. Longitudinal multidisciplinary follow-up was carried out from birth to adulthood. Neurological involvement was assessed with electroencephalographic (EEG) and neuroimaging tests at different times during the patient's life. Cranio-maxillofacial involvement was evaluated using lateral skeletal facial and cephalometric analyses. The right and left facial widths were measured through frontal face analysis and using the vertical zygomatic-midline distance. Oral rehabilitation was performed through orthodontic treatment and major dental reconstruction using composite resins. This treatment aimed to improve the occlusion and masticatory function, relieve the transversal compression of the maxilla, and reconstruct the fractured teeth. We believe that, due to significant neurological and cognitive impairment, orthognathic surgery was not the best option for restoring function and improving oral health-related quality of life.

[Incontinentia pigmenti. A descriptive study of experience in two different hospitals]

INTRODUCTION

Incontinentia pigmenti is a rare genodermatosis of inheritance linked to the Xchromosome that affects tissues derived from ectoderm. The aim of the study is to review, as completely as possible, the cases diagnosed in paediatric patients in two hospitals.

MATERIAL AND METHODS

A retrospective cross-sectional study was carried out, using the clinical, analytical, radiological, and genetic data of paediatric patients diagnosed with incontinentia pigmenti from 2004 to 2018. The data collected were analysed and evaluated at a multidisciplinary level.

RESULTS

A total of thirteen patients diagnosed with incontinentia pigmenti were included in the study. All of them were female. A genetic study was performed on 11 patients, which confirmed findings compatible with incontinentia pigmenti in 10 of them. Extracutaneous involvement associated with the disease was observed at neurological level (radiological findings in 6 cases, and clinical expression in 3 of them), ophthalmological level (4 cases), dental level (7 cases), and haematological level (4 cases).

CONCLUSIONS

A presentation is given of the most complete study published so far of incontinentia pigmenti in Spain. In this study, the results of the disease manifestations were similar to the largest case series published internationally, which reinforces the importance of a multidisciplinary study and follow-up.

Incontinentia pigmenti or Bloch-Sulzberger syndrome: a rare X-linked genodermatosis

Incontinentia pigmenti is a rare X-linked genodermatosis that affects mainly female neonates. The first manifestation occurs in the early neonatal period and progresses through four stages: vesicular, verruciform, hyperpigmented and hypopigmented. Clinical features also manifest themselves through changes in the teeth, eyes, hair, central nervous system, bone structures, skeletal musculature and immune system. The authors report the case of a patient with cutaneous lesions and histological findings that are compatible with the vesicular stage, emphasizing the importance of early diagnosis and appropriate therapeutic management.

Cutaneous mosaicisms: concepts, patterns and classifications

A mosaic is an organism composed of two or more genetically distinct cell populations derived from a genetically homogeneous zygote. Cutaneous mosaicisms are the clinical expressions of these disorders. The main event which allows the existence of mosaicism is a genetic mutation, either structural or functional. Cutaneous mosaicisms usually manifest by specific patterns on the skin and the archetypic pattern is the system of Blaschko lines, but others include checkerboard, phylloid, large patches without midline separation and lateralization. Since 1901, when Blaschko lines were first described, the study of mosasicism has helped to elucidate the behavior of numerous genetic diseases, generating therapeutic perspectives for these pathologies, including the promising gene therapy.