Sonographic findings in aneurysmal bone cyst in children: correlation with computed tomography findings.

Purpose: This study compares the value of sonography and computed tomography (CT) in assessing fluid-fluid levels (FFLs) in aneurysmal bone cysts (ABCs) in children.

Methods: Five children 4-13 years old with ABC in pubis, humerus, fibula, calcaneus, and ilium-ischium were studied between January 1995 and December 1996. Plain radiography, sonography, and CT were performed.

Eikenella corrodens skull infection: a case report with review of the literature.

Background: Subgaleal abscesses and skull osteomyelitis are very uncommon since the introduction of antibiotics. Eikenella corrodens infection is extremely rare in childhood and has never been reported in calvarial osteomyelitis.

Methods: We present a previously healthy 9-year-old boy, with a history of frontal contusion without injury, who developed E corrodens osteomyelitis of the skull.

Osteochondroma post osteomyelitis.

We report a case of radial metaphyseal osteochondroma secondary to osteomyelitis in a premature baby of 28 weeks. This is the second case with these characteristics that has been described in the literature. A possible pathogenesis is related to trauma during drainage of the abscess or following the associated inflammatory process.

Plasma cell granuloma of the lung in childhood: atypical radiologic findings and association with hypertrophic osteoarthropathy.

Three cases of pulmonary plasma cell granuloma in the pediatric age group are presented. Although rare, it is the most frequent primary lung tumor in childhood. In two of the cases, there was a close adherence between the tumor and the surrounding mediastinal structures and diaphragm, a very uncommon feature in these tumors.

Fine-needle aspiration biopsy in children: experience in 70 cases.

Results of 70 fine-needle aspiration biopsies (FNAB) were evaluated retrospectively in 61 pediatric patients. Over a period of 9 months all mass lesions suspected being malignant were aspirated. Twelve of the 70 aspirations were performed in children having known tumours, in order to exclude recurrence or metastasis.

[Mediastinal tumors in children].

Forty patients with primary mediastinal masses, treated at the Children's Hospital "La Fe" between 1971-1983, were review. Malignant neoplasms were the most common pathology in this series (23 cases), followed by benign lesions (10 cases), congenital malformations (five cases) and inflammatory diseases (two cases). Complementary explorations for the preoperative evaluation of theses masses is discussed.

Humero-spinal dysostosis.

A 2 year old boy with humero-spinal dysostosis is described. This is the third case of this disease reported in the literature. Humero-spinal dysostosis is characterised radiologically by distal humeral bifurcation, elbow subluxation and coronal cleft vertebrae.

The non-ossified pubis.

A group of syndromes is presented whose common characteristic is the absence of pubic ossification at birth with very slow posterior mineralization. This is a radiological finding of interest as it has not been described in other entities. In all the cases shown, moreover, a variable degree of delay in bone age is observed.

[Radiological manifestations of Meckel's diverticulum (author's transl)].

Multiple clinical and radiological manifestations of Meckel's diverticulum are commented, presenting four cases with acute abdominal manifestations and one with chronic symptomatology, which were selected from a series of nineteen cases that were surgically verified. The authors realize a critique of the radiological techniques in the literature of the suspected cases of said entity.

[Cavernous hemangioma of the liver (author's transl)].

A three-month old asymptomatic infant was incidentally found to have an abdominal mass. Through standard radiological and vascular procedures it was defined as being of hepatic origin, vascular etiology and of benign prognosis. Differences among cavernous hemangioma, hepatoma, metastasis and hemangio-endothelioma are summarized.

[Some additional facts about thymus (author's transl)].

Three cases are presented of eventual diagnostic errors concerning the thymus. In the first case right aberrating lobe appeared radiologically as a tumour of posterior mediastinum. In the second case, the large thymic malleability, enabled it to invade medium mediastinum and to show an extraordinary variability in shape when in decubitus.