[Rare presentations of infantile hemangiomas: 4 cases].

Background: Infantile hemangioma (IH) is a common benign vascular tumor in children. In most cases, diagnosis is based entirely on clinical examination. When the diagnosis is uncertain, the first-line complementary examination is Doppler ultrasound.

Co-existing infantile hepatic hemangioma and mesenchymal hamartoma in a neonate.

Infantile hepatic hemangioma (IHH) and mesenchymal hamartoma (MH) form the first and second most common benign hepatic tumors in children. In this case report, we present a newborn child in whom a growing hepatic mass was discovered at the age of 7 days. She suffered also from anemia, respiratory and renal failure.

Vitamin D-Dependent Rickets Type 1B (25-Hydroxylase Deficiency): A Rare Condition or a Misdiagnosed Condition?

Vitamin D requires a two-step activation by hydroxylation: The first step is catalyzed by hepatic 25-hydroxylase (CYP2R1, 11p15.2) and the second one is catalyzed by renal 1α-hydroxylase (CYP27B1, 12q13.1), which produces the active hormonal form of 1,25-(OH) D.

30 months follow-up of an early enzyme replacement therapy in a severe Morquio A patient: About one case.

Unlabelled: Patients under 5 years were not evaluated in the phase-3 study for enzyme replacement therapy (ERT) in MPS IV A. Here we describe the evolution of a severe Morquio A pediatric patient who was diagnosed at 19 months old and treated by ERT at 21 months old for the next 30 months. Applying the standard ERT protocol on this very young patient appeared to reduce his urinary excretion of glycosaminoglycans (GAGs); the improvements in both the 6 minute-walk test (6MWT) and the stair climb test, however, were no different than those reported in the nature history study.

[Synovial sarcoma in children and adolescents].

Synovial sarcoma (SS) is a rare high-grade malignant mesenchymal tumor affecting children, adolescents, and young adults. Cytogenetically, more than 90% of SS is characterized by the t(X;18)(p11.2;q11.

The reliability of the anterior pelvic plane for computer navigated acetabular component placement during total hip arthroplasty: prospective study with the EOS imaging system.

Introduction: Computer navigated total hip arthroplasty is mostly based on the use of the anterior pelvic plane (APP) as a reference. EOS is a new imaging system that provides three-dimensional analysis of the pelvis in a functional position with a low dose of radiation. The aim of this study was to evaluate the reliability of the APP for placement of the cup during computer navigated THA using EOS.

Arthroscopic release of shoulder contracture secondary to obstetric brachial plexus palsy: retrospective study of 18 children with an average follow-up of 4.5 years.

Introduction: Children affected by obstetric brachial plexus palsy have an internal rotation contracture of the shoulder and a deformed glenohumeral joint. In 2003, Pearl proposed doing an arthroscopic release of the shoulder to restore external rotation and allow the glenohumeral joint to remodel. The goal of the current study was to evaluate the active and passive shoulder external rotation range of motion and glenohumeral joint remodelling in children treated with arthroscopic-directed release.

Recent advances in medical imaging: anatomical and clinical applications.

The aim of this paper was to present an overview of the most important recent advances in medical imaging and their potential clinical and anatomical applications. Dramatic changes have been particularly observed in the field of computed tomography (CT) and magnetic resonance imaging (MRI). Computed tomography (CT) has been completely overturned by the successive development of helical acquisition, multidetector and large area-detector acquisition.

[Sports injuries and their prevention in childhood and adolescence].

Sports injuries are common in children and adolescents. Typical musculoskeletal disorders include overuse injuries such as stress fractures and apophyseal avulsions. Gymnastics has one of the highest injury rates of all girls' sports.

Mosaic osteochondral transplantations in the knee joint, midterm results of the SFA multicenter study.

Introduction: There are several possible options to treat focal articular cartilage defects of the knee. The aim of this study was to evaluate the results and prognostic factors cartilage defects of the knee treated by autologous osteochondral mosaicplasty after more than five years of follow-up.

Patients And Methods: One hundred forty-two cases were included in this retrospective multicenter study.

Focal nodular hyperplasia of the liver following hematopoietic SCT.

Incidental hepatic regenerating nodules rarely occur after haematopoietic SCT (HSCT). Focal nodular hyperplasia (FNH) is one of these unusual benign tumors with characteristic imaging features. To determine the incidence and the outcome of FNH of the liver and improve the understanding of its pathogenesis, we prospectively surveyed a total of 138 patients who had undergone serial prospective pre- and post-transplantation evaluations of iron biomarkers, including ferritin and liver iron concentration assessed by magnetic resonance imaging (MRI).

[Imaging of serious visceral forms of mucormycosis in five immunodepressed patients].

Objectives: Show the contribution of imaging to the diagnosis and follow-up of serious mucormycosis in immunodepressed patients.

Materials And Methods: Retrospective analysis of the 5-year radiological data in serious forms of mucormycosis occurring in patients with bone marrow allografts who are in refractory chronic graft-versus-host disease after bone marrow transplantation from 2002 to 2005. The positive diagnosis was bacteriologically and pathologically positive in all cases.

Complete recovery from Cryptosporidium parvum infection with gastroenteritis and sclerosing cholangitis after successful bone marrow transplantation in two brothers with X-linked hyper-IgM syndrome.

We describe two brothers who suffered from hyper-IgM syndrome (HIGM1) with similar clinical features: recurrent infections, especially cryptosporidium gastroenteritis with cholangitis. Their activated T cells did not express CD40L. Nucleotide sequencing revealed a mutation in both boys with respect to intron 4 and exon 5 boundaries of the CD40L gene in Xq26.

Thoracic calcifications in childhood.

Thoracic calcifications are found in the following locations: mediastinum, lung, pleura, cardiovascular system, and thoracic wall. The calcifications of the mediastinum include mostly inflammatory lesions and malignant neoplasms. Pulmonary calcifications are mainly inflammatory lesions and metastases of osteosarcomas.

[Pheochromocytoma in children].

Pheochromocytoma is rare in children. A wide varieties of lesions are observed and diagnosis, often made late, is based on urinary catecholamine assay. Magnetic resonance imaging provides the best morphological information.

Dynamic MR imaging of bladder haemangioma.

Haemangioma is a rare benign mesenchymal tumour of the bladder. We report a case of bladder haemangioma and describe the enhancement kinetics observed on MR images after gadolinium bolus administration, which is similar to that reported in liver haemangioma.

Mandibulo-acral dysplasia.

We report on a 7 year-old-girl with mandibulo-acral dysplasia. When she was 3 years of age it mimicked scleroderma because of skin atrophy and later on a Hutchinson-Gilford progeria syndrome (HGP). Acro-mandibular dysplasia was diagnosed because of facial hypoplasia and mandibular hypoplasia.

Pyogenic spondylitis with Scheuermann's disease.

We present the case of a teenager suffering from dorsal and lumbar pain. Imaging modalities diagnosed a lumbar retro-marginal anterior herniation and thoracic spondylitis. Such association has been reported twice in the literature.

Pathological fracture in non-ossifying fibroma with histological features simulating aneurysmal bone cyst.

A 12-year-old-girl presented with a fracture of an osteolytic lesion of the distal radius. A 7-year-old girl presented with a fracture of an osteolytic lesion of the femoral shaft. In both cases it was a non-ossifying fibroma with fracture misdiagnosed at pathology as aneurysmal bone cyst.

[Bibliometric index].

The Institute of Scientific information has edited an index to evaluate the diffusion of scientific articles. It is based on the fact that the more an article is cited as a reference in other articles, the more it is considered to be important, and the higher the coefficient attributed to the journal in which it was originally published. The impact factor takes into account the average number of times which a journal is mentioned for recent articles published in a given year.