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Biomedical subjects

A F Petras

Publications and source records attributed to A F Petras.

5 recordsLinked to original sources
PubMed1983

Metastatic prostatic pulmonary nodules with normal bone image.

Asymptomatic prostatic carcinoma presented as multiple bilateral pulmonary nodules in a patient without any evidence of skeletal involvement by normal bone image. Percutaneous biopsy provided the initial clue to diagnosis. We recommend that asymptomatic prostatic carcinoma be included in the differential diagnosis of pulmonary nodules, even when there is no evidence of skeletal metastasis.

Adenocarcinoma↗
PubMedDate not supplied

CT myelography in cervical nerve root avulsion.

Computed tomographic myelography (CTM) with metrizamide was performed in six patients to delineate the CTM appearance of avulsed cervical nerve roots. Twelve cervical nerve root avulsions were found and confirmed by cervical myelography and physical examination. The CTM findings in cervical nerve root avulsion closely matched those found myelographically: outpouchings of metrizamide extending ventrolaterally from the thecal sac into the neural foramen in an expanding or "mushroom-like" manner and separated from the thecal sac proximally by a 1-2 mm thick dural plane. This CTM appearance differs from that seen in such normal variants as dilated nerve root sleeves or root diverticula. We conclude that CTM is as sensitive as myelography. In addition, it can provide useful information regarding bony fragments or contiguous soft tissue injury.

Adolescent↗
PubMedDate not supplied

Roentgenographic skeletal injury patterns in parachute jumping.

A total of 90,000 parachute jumps made during a 1 year period resulted in 615 (0.68%) injuries secondary to jumping. Of these 615 cases, 70 jumpers (0.08%) had 71 skeletal injuries as confirmed by roentgenographic examination. Forty-one (57.7%) of the 71 injuries involved the ankle, and 12 (16.9%) were compression fractures of the thoracolumbar spine. The remaining injuries were distributed as follows: shoulder, six (8.5%); calf, six (8.5%); pelvis, 3 (4.2%); foot, two (2.8%); and thigh, one (1.4%). The various mechanisms leading to these injuries are presented.

Adolescent↗