A 7 year-old twin girl with hypophosphataemic rickets was evaluated for a recent onset of mild strabismus.She was a homozygous twin sister with hypophosphataemic rickets diagnosed at the age of 2 years, with a mutation in intron 21 of the PHEX gene, which was also present in her sister.The girls’ clinical histories were remarkable for an important lower limb varus that progressively improved after starting phosphate supplementation with a galenical solution (Joulies solution 1 mmol phosphate/ml) and vitamin D 1,25 OH.During the examinations, both girls were in good general condition. Physical examinations were unremarkable, except for tibial varus, bilateral fifth finger clinodactyly and bilateral syndactyly of the third and fourth foot fingers. No major head shape abnormalities were noticeable except for a high forehead.One patient presented with a slight strabismus, normal isochoric isocyclic and reactive pupils, no signs of cranial nerve deficit, and no alterations in the rest of the neurological examination. An ophthalmological evaluation showed bilateral papilloedema. A cerebral MRI scan was then performed, suspecting elevated intracranial pressure (figure 1). The same examination was performed on the asymptomatic sister which also demonstrated papilloedema with similar findings on cranial MRI too.Figure 1Sagittal MR T1-weighted imaging shows a 12 mm cerebellar tonsillar herniation (shown by the white arrow) and bulb-medullary junction herniation. The apex of the epistropheus tooth almost reaches the occipital clivus (shown by the white line) and imprints the bulb.QuestionsWhich is the most likely diagnosis?CraniosynostosisPseudotumor cerebriDrusenArnold-Chiari malformationHow should these patients be managed?Acetazolamide treatmentThird to fourth ventricle cystostomyWait and see with periodical visual evoked potential follow-upNeurosurgeryHow should patients with X linked hypophosphataemic rickets (XLH rickets) be managed for the risk of craniosynostosis?Monitor cephalic anthropometric measuresPerform a MRI scan if clinical signs of craiosynostosis or intracranial hypertension are presentPerform a skull X-ray every 2 yearsPerform an MRI scan every 2 yearsAnswers can be found on page 02.
The paper reports the case of a 14-year-old boy with skull base fracture due to head trauma. The skull base fracture represents around 20% of skull fractures after trauma and has to be suspected considering the dynamics of the trauma and the clinical picture because of its high association with intracranial injury. Non-contrast CT is the gold standard for its diagnosis and the patient management should be shared with the neurosurgeon to evaluate whether surgery may be necessary.
The case describes a girl with a benign skin condition named Terra Firma-Forme Dermatosis. The Terra Firma-Forme dermatosis is easy to recognize and has an easy resolution but however it has many differential diagnosis as acanthosis nigricans, tinea versicolor confluent and seborrheic keratosis. It is the typical example of “if you know it you recognize it”. A correct diagnosis brings indeed to a prompt resolution and avoids useless and inadequate exams to the patient.
Background Hereditary multiple osteochondromas (HMO) is a genetic condition characterized by the presence of multiple osteochondromas, usually at the lateral side of the most active growth plate of a long bone. These lesions may persist, be asymptomatic during childhood, and may increase in number and size until growth plates close. Therefore, diagnosis of HMO in children and young people can be challenging; while short stature can be more evident at the onset of puberty, asymptomatic ostheocondromas can progress into different degrees of orthopedic deformity. Moreover, multiple complications may arise due to the presence of osteochondromas, including tendon and compression muscle pain, neurovascular disorders, obstetric problems, scoliosis and malignant transformation into secondary peripheral chondrosarcoma in adulthood. Case presentation We report the case of a girl admitted to our Institute for growth delay. While laboratory tests, including growth hormone stimulation test, were normal, left hand X-ray revealed multiple osteochondromas, suggestive for HMO. The genetic test for EXT1 and EXT2 genes confirmed the radiological diagnosis, with a mutation inherited from the mother who displayed the same radiological abnormalities along with recurrent limb pain episodes. Conclusions HMO is a genetic condition whose diagnosis can be challenging, especially in females. Every pediatricians should consider a skeletal dysplasia in case of unexplained growth delay and a skeletal survey might be fundamental in reaching a diagnosis.
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