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Biomedical subjects

P Stark

Publications and source records attributed to P Stark.

At least 127 records · Page 7Linked to original sources
PubMed1988

The sensitivity of plain films for detecting perforation in children with appendicitis.

The plain films of 37 patients under age 18 with surgically and pathologically proven non perforated (16/37) and ruptured (21/37) appendicitis were reviewed in order to determine the ability of the plain film to specify perforation. Perforation was suggested when one or more of the following six findings were clearly defined: 1. Acute small bowel obstruction. 2. Extraluminal gas. 3. Mass in the right lower quadrant. 4. Colon cut-off sign at the hepatic flexure. 5. Fecalith. 6. Obliteration of the pelvic fat planes. This approach resulted in a sensitivity of 80% and a specificity of 94%, with the only false positive for perforation occurring in a patient with a fecalith. In five patients, extraluminal gas produced a triangular accumulation in the right flank which could be distinguished from intraluminal bowel gas on the supine or prone film.

Adolescent↗
PubMed1988

Hinged shutter for image alternator.

A hinged, mobile shutter was designed to reduce the effect of extraneous light on the interpretion of chest radiographs and angiograms. The authors believe that the device greatly facilitates the daily work by decreasing eye fatigue and probably by increasing the signal-to-noise ratio.

Radiography↗
PubMed1987

Episternal ossicles.

Eight hundred computed tomographic (CT) scans of the chest were reviewed, and 12 cases of episternal ossicles were found. Eight persons had paired ossicles, and four had unilateral ossicles. The overall frequency in the study population was 1.5% (men, 1.4%; women, 1.7%). Episternal ossicles represent a normal variant and should be distinguished from fracture fragments, sequestra, foreign bodies, calcified lymph nodes, or vascular calcifications.

Female↗
PubMed1987

Computed tomography of the sternum.

The author presents his experience with computed tomography (CT) in the diagnosis of sternal anomalies. The normal anatomy of the sternum and the peristernal soft tissues are described. The embryology, pertinent to the understanding of congenital sternal anomalies, is reviewed. The technique used to image the sternum is briefly explained. Variants of the sternum, traumatic changes, iatrogenic alterations, inflammation, and neoplastic lesions are illustrated. It is concluded that CT offers definite advantages in the evaluation of presumed sternal pathology and should be the examination of choice in the appropriate clinical setting.

Bone Neoplasms↗
PubMed1987

CT-findings in ARDS.

The CT features of 28 patients with ARDS are described. Diffuse lung consolidation, multifocal patchy involvement and lobar or segmental disease were observed. Large lung cysts as well as small cysts producing a "swiss-cheese" appearance of the parenchyma, were detected. These findings were not regularly appreciated on chest radiographs. The overall mortality of our 28 patients was 72.7% (22 out of 28). Patients with lung cysts showed a trend toward higher mortality (87.5% or 13 out of 16). Other unexpected findings were basilar lung abscesses and an empyema. In 15 out of 28 patients, CT scans provided additional information, not obvious on bedside chest radiographs and led to a change in management in five patients.

Adult↗
PubMed1987

Pulmonary arterial hypertension as a manifestation of lupus erythematosus.

We present five patients with systemic lupus erythematosus (SLE) who developed pulmonary arterial hypertension and cor pulmonale in the course of their disease. The clinical features, as well as, the radiological manifestations of this rare manifestation of SLE are discussed. A vasculitic process is the most likely cause of this complication. Therapy is ineffective and the prognosis is poor.

Adult↗
PubMed1987

Traumatic rupture of the thoracic aorta. A review of 49 cases.

We examined retrospectively the chest radiograph of forty nine patients with angiographically proven aortic ruptures. The plain film findings found most consistently were a wide mediastinum (69.5%), partial obliteration of the descending aorta (67.3%), left apical cap (65.3%), downward displacement of the left main bronchus (65.3%), tracheal deviation to the right (63.2%), obscuration of the aortic arch (55.1%), right paratracheal stripe thickening (53%) and nasogastric tube deviation to the right (50%). We also examined 113 sequential aortograms performed after thoracic trauma over 3 years, to determine the positive rate in our series; 14 studies were positive for a rate of 12.4%. No single case of proved ruptured aorta with a normal chest radiograph was detected.

Aorta, Thoracic↗
PubMed1986

Pleural effusions in the postpartum period.

We report on the high frequency of pleural effusions in the immediate postpartum period. Forty-four out of 45 women whom we examined within 24-48 h after delivery showed evidence of pleural fluid. Under these circumstances, this pleural abnormality should not be considered an indicator of serious cardiopulmonary disease.

Adult↗
PubMed1986

[Bronchial carcinoma in patients with lymphoproliferative diseases].

Two patients with malignant lymphoma and synchronous bronchogenic carcinoma are presented; the propensity for development of a second primary tumor in patients with lymphoma and leukemia is emphasized. Bronchogenic carcinoma occurs more frequently than expected in these patients.

Aged↗