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Biomedical subjects

A Pelizza

Publications and source records attributed to A Pelizza.

At least 19 recordsLinked to original sources
PubMed1993

[Diagnostic imaging of acute leukemia in childhood. Description of 5 cases with unusual onset].

The authors, after reviewing the main features of the so called "leukemic osteopathy", remark how the natural history of leukoses has changed thanks to progress in both diagnosis and treatment. Indeed, the condition is now diagnosed early and its remission is quick. Thus, the cases with X-ray-evident bone involvement are quite uncommon: hence the need to use, at AL onset, imaging techniques which are more sensitive to bone marrow changes. To this purpose, MR imaging has proved a valuable technique which can demonstrate even the early stages of pathologic conditions affecting bone marrow.

Acute Disease↗
PubMed1991

[Blocked transcolostomy colonography in the identification of anorectal malformations].

The study of anorectal malformations has considerably improved over the last years also thanks to the use of such diagnostic techniques as CT and MR imaging, which allow a better knowledge of perineal region anatomy and the demonstration of the development of sphincteric structures. The most important diagnostic phase for the identification of anorectal malformations consists in the detection of rectal fistulas. The authors report on their experience with barred water-soluble contrast enema in the study of anorectal anomalies. Over 2 years, 23 patients with anorectal malformations (10 males and 13 females) previously submitted to colostomy, were studied with this method. Fistulas were detected in 21 cases; in the extant 2 patients (both females affected with Down syndrome), no fistulas were detected, not even at surgery, which was posterior sagittal anorectoplasty according to Peña-De Vries. In our experience, the most frequent anomalies were recto-bulbo-urethral fistula in males and low recto-vaginal fistula in females. The authors suggest the use of this method as a routine diagnostic examination, because of its proven reliability.

Anal Canal↗
PubMed1991

Rare primary cranial vault and base of the skull tumors in children. Report of 30 cases with a short literature review.

Twenty-six cases of rare primary cranial vault tumors are reported, together with 4 cases of primary tumors of the base of the skull and 3 cases of monostotic cranial neuroblastoma. Whereas some rare primary cranial vault tumors may present with characteristic radiographic patterns (e.g. hemangioma, aneurysmal bone cyst, osteoma, progonoma), most of them can be recognised only after histology. The most frequent tumor in the region of previous irradiation is osteosarcoma. The only "common" primary bone tumor of the base of the skull is chordoma. The radiological differential diagnosis of primary tumors of the skull vault and base is discussed.

Adolescent↗
PubMed1990

A new syndrome with cerebro-oculo-skeletal-renal involvement.

We report on an infant male who presented with microcephaly of prenatal onset, schizencephaly, decorticated disturbance of the neurological function, congenital optic atrophy, abnormal eye movements and nystagmus. In addition, he had a skeletal dysplasia with predominant acromelic involvement and a renal disease characterized by both nephritic and nephrotic changes. The natural history of his condition included severe postnatal failure to thrive, lack of development of psychomotor milestones, intractable seizures, terminal renal insufficiency with early death. Such spectrum of phenotypic abnormalities has never been reported before and we suggest that it may represent a new syndromic entity. The differential diagnosis with the oculo-skeletal-renal syndromes, with the osteodysplastic primordial dwarfism of the Taybi-Linder type and with the Hutterite cerebro-osteo-nephrodysplasia, is discussed.

Abnormalities, Multiple↗
PubMed1990

Primary sacral bone tumours in children (report of 16 cases with a short literature review).

16 cases of primary sacral bone tumours in children are reported. These include 13 patients with Ewing's sarcoma and 3 with very rare primary sacral bone tumours in childhood--chordoma, haemangiopericytoma and osteoblastoma. All sacral bone tumours, with the exception of Ewing's sarcoma are very rare in childhood. The possibility of a sacral tumour should be considered in a child with radiculopathy. CT and MR make the diagnosis of primary sacral bone tumours much easier with the added possibility of recognition of the true nature of the lesion in many instances. Reports of primary sacral bone tumours in children are scarce. Most of the patients are incorporated in adult series which do not specify the age of the child and the site of the tumour. The purpose of this paper is to describe 16 children with primary sacral bone tumours.

Child↗
PubMed1989

Primary bone tumours of the pelvis in childhood--Ewing's sarcoma of the ilium, pubis and ischium (report of 30 cases). (Part I).

30 children with Ewing's sarcoma, the most common malignant pelvic tumour in childhood, were analysed. The diagnosis of Ewing's sarcoma is relatively easy and can be established in most of the cases on plain radiography. The diagnostic radiographic features of the tumour are discussed. The two most important conditions in differential diagnosis are eosinophilic granuloma and the rare primary bone lymphoma. Osteomyelitis should rarely cause confusion unless the clinico-radiographic findings are not properly evaluated.

Bone Neoplasms↗
PubMed1989

Rare, primary iliac, pubic and ischial tumours in children (report of 14 cases)--Part II.

14 cases of rare, primary iliac, pubic and ischial bone tumours or tumorous conditions are reported. These include aneurysmal bone cyst, eosinophilic granuloma, cavernous haemangioma, osteoid osteoma, fibrous dysplasia, fibrous dysplasia with sarcomatous degeneration, chondrosarcoma, lymphoma and atypical malignant histiocytosis. The possibilities to be considered in the accurate radiographic recognition of primary tumours of iliac, pelvic and ischial bones are discussed.

Bone Cysts↗
PubMed1989

[The use of 3-dimensional CT reconstruction in childhood. Technics and dosimetry].

A new computer method has been developed that allows the reprocessing of standard CT scans to produce 3D surface images. We employed the 3D reconstruction program developed by Hitachi Medical System using an Ansaldo A-TOM XR 1200 scanner. The process requires only standard CT scanner hardware, and reconstruction time is comparable to that of sagittal and coronal reconstructions. The applications of this technique and methodology to pediatric patients are discussed. In order to assess the relationship between image quality and radiation dose, we performed many CT scans with different protocols. A skull was employed for phantom, and plunged into a physiological solution, which helped us to determine the radiation exposure dose from every single CT scan. The measurements were taken with film and thermoluminescent crystal dosimeters (TLD). The results confirm that low-dose techniques allow a significant reduction in the total exposure. The authors discuss the clinical indications and the eventual applications of these techniques.

Child↗
PubMed1986

[Glomus tumor: apropos of a case].

A case of a carotid body tumor is presented, which was observed in a forty-four-years-old patient. This in an uncommon type of neoplasia whose incidence and clinical features are discussed. It is underlined the role of carotid angiography as the most reliable diagnostic tool. Moreover in these cases it is suggested a complete angiographic evaluation of both subclavian ad carotid vessels including endocranial circulation, for the important influence on the surgical approach. Surgical technique is mainly conditioned by the close relationship with fine anatomic structures like vessels and nerves of the neck. As a consequence it is emphasized the need of a technical achievement in modern carotid surgery as a necessary requisite for a complete removal and a low complication incidence.

Adult↗
PubMed1984

[Laryngeal plasmacytoma. Observations on a clinical case].

Extramedullary solitary plasmocytoma (E.S.P.) is an undoubtedly rare neoplasm for the head and neck areas and even more for the larynx. The Authors take a case observed by them as a starting point for remarking its symptomatology and unforeseable development as well as various and unsteady histopathology. Afterwards they dwell upon the differential diagnosis with the multiple myeloma and the plasmacell granuloma. Such diagnosis is mainly suggested by the histopathological investigation with the support of clinical, blood and radiologic tests. The preferential treatment and the need of a long-term and careful follow-up are the suggested.

Aged↗
PubMed1978

[Fistulae and congenital cysts of dorsum of the nose. Report of a case (author's transl)].

The Authors, after a brief review of the literature concerning the congenital fistulae and cysts of the nasal dorsum with special regard to the etiology, pathology, diagnosis and therapy, report a personal case of such fistulae in a 15 year old male. They stress importanct, for an accurate diagnosis, of radiography and fistulography and reccomend, radical surgery.

Adolescent↗