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Biomedical subjects

A Vallcanera

Publications and source records attributed to A Vallcanera.

16 recordsLinked to original sources
PubMed1998

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. RESULTS: FFLs were visualized equally or better with sonography than with CT. CONCLUSIONS: We propose that sonography be used to complement plain radiography in the prebiopsy assessment of expansile bone lesions with cortical bone thinning because the presence of FFLs is characteristic of ABC. CT and/or magnetic resonance imaging could be used in indeterminate cases and in complex anatomic locations. Such an approach would save time and reduce costs and discomfort to children.

Adolescent↗
PubMed1997

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. The radiographic findings are reviewed, including skull films and computed tomographic scans. The patient underwent surgical debridement of the lesion, as well as systemic medical therapy with amoxicillin. We review the medical and surgical therapy for such lesions. The differential diagnosis of a posttraumatic scalp swelling is also reviewed. RESULTS: Good resolution after debridement and antibiotic therapy is reported. CONCLUSIONS: Surgical intervention is emphasized for the removal of bony sequestrum and nonviable bone while maintaining an intact dura.

Child↗
PubMed1996

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.

Bone Neoplasms↗
PubMed1995

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. In the other case, plasma cell granuloma of the lung was seen in association with a clinical-radiological picture of hypertrophic osteoarthropathy, which resolved after excision of the mass. Such an association has not, to date, been reported in the literature, and could constitute an additional finding useful in the differential diagnosis of primary lung tumors in childhood. The literature concerning this issue has been reviewed.

Bone and Bones↗
PubMed1988

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. The others were carried out to obtain a diagnosis. Satisfactory specimens were obtained from 58 (83%). There were 21 benign diagnoses, 36 malignant diagnoses, and 1 with suspected malignancy. Correlation of histologic and cytologic diagnoses was possible in 45 cases. The diagnostic sensitivity and specificity were 95% and 80%, respectively. We have found FNAB more accurate in the diagnosis of malignancies than in benign lesions. The results suggest that this is a useful technique for obtaining a first diagnosis of malignancy, as well as for excluding recurrence or metastatic disease.

Adolescent↗
PubMed1985

[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. Surgical removal was carried out on all tumors. Mortality caused by performing biopsy on lymphomas was high. Two of the five congenital malformations were removed. The other three did not receive any therapy. All patients having benign tumors are alive except one who had a cardiac teratoma diagnosed at necropsy. Eleven of the patients with malignant neoplasms are alive, with a median follow-up time two years and nine months.

Child↗
PubMed1979

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. Congenital, progressive heart disease, possibly with fatal outcome, is probably part of the syndrome.

Bone Diseases↗
PubMed1979

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. The increase of space between the pubic bones described in these syndromes is fictious, as it really signifies the existence of non-ossified cartilage. Therefore, they must be differentiated from those which deal with real widening of the symphysis of pubis.

Age Determination by Skeleton↗
PubMed1979

[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.

Child↗
PubMed1978

[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. The importance of angiography is emphasized as an essential procedure previous to the surgical evaluation and therapy.

Angiography↗
PubMedDate not supplied

[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. Finally, a post surgical hematomata, in a patient affected by a cyanogen cardiopathy actually showed some problems of radiological diagnosis with the characteristic thymus regeneration.

Diagnostic Errors↗