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Biomedical subjects

J Frija

Publications and source records attributed to J Frija.

At least 109 records · Page 6Linked to original sources
PubMed1986

[Role of thoracic x-ray computed tomography in the pretherapeutic evaluation of bronchial cancer. A prospective study of 60 patients].

The value of computerized tomography (CT) was compared with that of conventional exploratory methods (standard radiology, bronchial tomography and endoscopy) in 60 patients with non-anaplastic bronchial cancer evaluated preoperatively. After CT examination thoracotomy was avoided in 14 (23%) patients with local or distal extension. CT proved more sensitive than conventional methods in the assessment of pleural and/or parietal extension, and of direct or lymph-node mediastinal invasion (67% vs 33%, 50% vs 33%, 64% vs 45% respectively). Similar results (75%) were obtained in cases with hilar lymph-node involvement. However, caution must be exerted before excluding thoracotomy, since CT may give false-positive results.

Adult↗
PubMed1985

[Human pentastomiasis: clinical, radiological and x-ray computed tomographic study of a case].

A case of abdominal pentastomiasis in a 38-year-old Congolese man is reported. This parasitic disease has been described in Central Africa and South East Asia. The patient presented with unexplained permanent abdominal pain. The peritoneal and hepatic localisations of the parasite were recognized on plain abdominal film and documented by ultrasonography and CT scan studies. At laparoscopy multiples adherences were found, in spite of the fact that no previous abdominal surgery had been performed. These findings suggest a possible correlation between the clinical manifestations and the anatomic lesions in this disease which is usually considered to be asymptomatic.

Adult↗
PubMed1985

[Value and limitations of puncture guided by x-ray computed tomography in hematology].

Interpretable cytologic data were obtained in 63% of a series of 68 punctures, for biopsy of hematologic affections, guided by CT scanning. The frequency of puncture of post-therapy residual masses (44 cases) explains the high incidence of non-significant examination results after lymph node puncture. The technique was most effective (78% of punctures exploitable) when used for thoracic masses and visceral localizations. The method is very safe: lack of serious incidents and minor reactions, mainly during thoracic puncture, in only 4.4%. The method is simple in use and should be employed, within certain limits that should be recognized, very widely in hematologic diseases.

Abdomen↗
PubMed1985

Observer variation in bone lesion detection in thoraco-abdominal visceral CT images.

This study measured missed bone diagnosis on CT performed for lymph nodes or visceral spread of cancers and lymphomas. A bone-expert reading was compared to that of visceral-cancer oriented observers. From 100 examinations, 65% of bone abnormalities were not described by current reporting of cancer cases. Changes in windowing and contrast of the image produced large variations in CT readings. A slow search with different windowing decreases the false-negative ratio. A fast reading with invariable viewing parameters increases false interpretations, even for experienced radiologists.

Bone Neoplasms↗
PubMed1985

[Cervical myelography and x-ray computed tomography in arm paralysis of traumatic origin].

Results of cervical myelography by the lumbar approach were compared with those of CT scan imaging after subarachnoid metrizamide by the lumbar route, in 16 patients operated upon for post-traumatic cervical spine lesions. Examination in each patient included the last four cervical and first thoracic roots on the injured side, making a total of 80 roots. Lesions detected by myelography and CT scanning are described, comparison of semiologic data with gross findings at operation showing poorer diagnostic accuracy for myelography (86%) than for myelography and a CT scan combined (97%). Sensitivity of the former varied between 70 and 90%, depending on whether doubtful forms were classed as normal or pathologic, but was lower than that of the CT scan (96%). This also applied to specificity (90% as against 96%) and diagnostic accuracy (86% to 90% as against 97%). Combining myelography with a CT scan after subarachnoid contrast injection provides complementary very precise data allowing improved therapeutic results.

Adolescent↗
PubMed1984

CT mediastinum examination in recurrent nerve paralysis.

Twenty-two patients with recurrent nerve paralysis without a cervical cause were studied by CT of the mediastinum. Positive findings were present in 22 cases, including one false-positive case. The CT findings were not apparent on chest X-ray film in five of nine cases with mediastinal lymph node involvement, five of nine mediastinal tumors, and two of three cases of vascular etiology. We suggest that CT of the mediastinum is a good examination to search for the etiology of recurrent nerve paralysis without a known cervical cause.

Aged↗
PubMed1984

[Adenoma of the liver in man].

The authors report the case of a 28-year-old man with a solitary adenoma of the liver. The tumor was detected because of a raised erythrocyte sedimentation rate and serum fibrinogen. Review of the literature shows that adenoma of the liver is an uncommon tumor in man since only 30 other cases have been reported. The tumor is often multiple (55 p. 100) and the clinical manifestations are quite different from those observed in women: the adenoma is often asymptomatic (45 p. 100) and rupture is rare (10 p. 100). Androgens seem to be implicated in the development of adenoma in man since 8 out of 31 patients had received androgens for a long period of time; androgens also seem to favor the tumor's rupture.

Adult↗
PubMed1983

[Robinow's syndrome. Apropos of a case with thrombopenia].

We report on a 17 month-old boy with Robinow' syndrome characterized by mild dwarfism, brachymelia, frontal bossing, hypertelorism, upturned nose, gingivodental, vertebral and bone age abnormalities, hypoplastic genitalia with normal gestation, birth weight and length and intelligence. There was an unusual association with idiopathic thrombocytopenic purpura and splenomegaly.

Abnormalities, Multiple↗
PubMed1983

[Tomodensitometric aspects of a case of intracranial toxoplasmosis in an immunosuppressed patient].

The case of a 42 years old man who had a monoblastic acute leukemia treated by a bone-marrow graft is described. The patient died of a cerebral toxoplasmosis and a cerebral computed tomography done two days before is correlated with anatomopathologic slices done in the same planes than the computed tomagraphy examination. There is a good correlation between necrotic abceded areas and hypodense areas accompanied by serpiginous fixations of contrast media. The immunocompromised patient is very favorable for the development of a cerebral toxoplasmosis. CT, while not specific, has the advantage to suspect the diagnosis which must be discussed with other oportunistic infections, leukemic infiltrates, methotrexate encephalopathy, progressive multifocal encephalopathy, and small infarcts.

Adult↗
PubMed1982

Spinal vacuum phenomenon: CT diagnosis and significance.

Spinal vacuum phenomenon may be encountered in many circumstances, such as degeneration of the intervertebral disk, disk injury, vertebral metastases, ischemic vertebral collapse, Schmorl's nodes, and infectious processes. The high spatial and densitometric resolution of computed tomography (CT) makes it possible to show gas in tissues with high frequency than by conventional radiography. In certain circumstances, the CT findings may be the decisive diagnostic element.

Adult↗
PubMed1982

Computed tomography of the pulmonary fissures: normal anatomy.

Thirty normal computed tomography (CT) examinations of the thorax have been reviewed in order to analyze the anatomy of the pulmonary fissures. The major and minor fissures are constantly visible, and their orientation with respect to the scanning plane appears either as a narrow fibrous line or as a hypovascular band. On both sides, the major and minor fissures are constantly in close contact with the pars interlobaris of the pulmonary arteries.

Adolescent↗
PubMed1982

Vertebral osteomyelitis: disk hypodensity on CT.

The importance and role of computed tomography (CT) are discussed on the basis of 36 cases of vertebral osteomyelitis. The bone images themselves, the detection of lumbar disk hypodensity, and the exploration of soft paraspinal regions in the search for an abscess are factors that contribute to the superiority of this method in difficult cases. In cases where the diagnosis is already known, CT offers an excellent method to assess the extent of the lesions. Its accuracy, coupled with its rapidity and noninvasive nature, affects the role of conventional tomography, a method that is incomplete and involves higher radiation doses. CT offers an excellent method for follow-up after treatment of vertebral osteomyelitis.

Abscess↗