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Biomedical subjects

C A Meyer

Publications and source records attributed to C A Meyer.

At least 37 records · Page 2Linked to original sources
PubMed1993

Is there sex after the prison door slams shut?

Despite the growing frequency of treatment-resistant STDs, North American literature and practice continue to stress repression and to evidence denial of prison sexuality. The authors outline their observations concerning prison sex, including officer-inmate sex. (Since this article was submitted, officer-inmate sex has received widespread public attention in Georgia, USA.)

Cross-Sectional Studies↗
PubMed1992

Case report 716. Soft-tissue metastasis in synovial sarcoma.

We describe the case of a 21-year-old woman with a synovial sarcoma of the thigh, who exhibited a soft-tissue metastasis to the shoulder approximately 3 months after her initial presentation. Due to its increasing availability and the recognized importance of MRI in the preoperative evaluation of patients with soft-tissue masses, it is important to be aware of even the uncommon manifestations of frequently encountered soft-tissue sarcomas.

Adult↗
PubMed1991

Fat-containing soft-tissue masses of the extremities.

The authors review the radiologic spectrum of fat-containing soft-tissue masses of the extremities, with emphasis on computed tomography, magnetic resonance imaging, and pathologic correlation. These masses include both common and uncommon, benign and malignant lesions, such as lipoma, intramuscular and intermuscular lipoma, neural fibrolipoma, lipoblastoma, lipomatosis, hibernoma, hemangioma, elastofibroma, and liposarcoma, as well as lesions that may mimic fat-containing soft-tissue masses. Imaging studies of fat-containing lesions will often allow a specific presumptive diagnosis. When a specific diagnosis is not possible, however, knowledge of the spectrum of fat-containing lesions will allow a suitably ordered differential diagnosis.

Adolescent↗
PubMed1991

Acute traumatic midbrain hemorrhage: experimental and clinical observations with CT.

Traumatic brain stem hemorrhage (TBH) after blunt head impact is an uncommon injury and has historically been associated with high mortality. Retrospective clinical review identified 64 patients with TBH admitted during a 5-year period. Complete imaging and clinical records for 45 of these patients demonstrated that TBH could be categorized into three groups. The most frequent site of hemorrhage, in 31 (69%) of 45 patients (group 1), was the midline rostral anterior brain stem, posterior to the interpeduncular cistern, and this injury was associated with a 71% survival rate. This pattern was also associated with a predominantly anterior site of head and/or face impact. Eight (18%) patients (group 2) had miscellaneous foci of acute brain stem hemorrhage with seven (88%) surviving. Six (13%) patients (group 3) had brain stem hemorrhage associated with transtentorial herniation and brain stem compression, with 100% mortality. Experimental findings in a canine model and clinical results indicate that the anterior rostral midbrain is a common site of TBH and appears to arise from sudden craniocaudal displacement of the brain at impact. Survival is unexpected high with this location of traumatic midbrain hemorrhage.

Acute Disease↗
PubMed1975

Aerosol BCG treatment of carcinoma metastatic to the lung: a phase I study.

BCG (TICE) was safely administered to 15 patients with metastatic cancer to the lungs in weekly doses of up to 3 X 107 organisms by the aerosol route. The aerosol route of administration is associated in approximately 33% of the doses with a toxicity syndrome of malaise, fever, and chills beginning 4 to 8 hours after treatment and ending within 24-36 hours. This syndrome is experienced by all patients and symptoms gradually subside with continuation of therapy. No hepatic or pulmonary toxicity was documented during the 221 treatment doses.

Aerosols↗
PubMedDate not supplied

MR and CT appearance of nodular fasciitis.

Nodular fasciitis is a common soft-tissue tumor that remains almost unreported in the radiology literature. We retrospectively reviewed all available imaging studies on three patients with nodular fasciitis studied by MR at our institution. The lesions were round to oval in configuration, ranging in size from 1 to 4.5 cm. Two were intramuscular and one was subcutaneous in location. Both intramuscular lesions were poorly defined on CT, with a tissue attenuation less than that of skeletal muscle. The single subcutaneous lesion was well defined by surrounding fat. Conversely, all lesions were well defined on MR, although the appearance was otherwise nonspecific and varied according to the histology of the lesion. Both intramuscular lesions were mucoid or cellular and were hyperintense to skeletal muscle on T1-weighted and hyper-intense to fat on T2-weighted spin-echo (SE) MR images. The subcutaneous lesion was fibrous and markedly hypointense to skeletal muscle on all SE pulse sequences. Findings on three-phase bone scan, arteriography, and ultrasound are discussed. Because there are no unique radiologic findings in nodular fasciitis, this entity must be included in the preoperative differential diagnosis of small soft-tissue masses occurring in the extremities of young adults.

Adult↗
PubMedDate not supplied

Coronary artery calcification at CT as a predictor for cardiac complications of thoracic surgery.

PURPOSE: Our goal was to determine the predictive value of coronary artery calcification (CAC) on preoperative CT of the thorax for cardiac complications of noncardiac thoracic surgery. METHOD: Of 117 patients undergoing noncardiac thoracic surgical procedures between January 1, 1993, and June 1, 1995, at our institution, 75 had inpatient records and chest CTs available for retrospective review. Inpatient records were reviewed for postoperative cardiac complications (arrhythmia, hypotension with ECG changes, myocardial infarction, congestive heart failure, stroke, and death). The CT scans were scored for the presence and extent of CAC by an independent observer. RESULTS: Six of the 75 patients had cardiac complications including 1 death. Thirty-nine of the 75 patients had a CAC score of > or = 7. The sensitivity, specificity, positive predictive value, and negative predictive value of a CAC score of > or = 7 for cardiac complications were 100, 71, 23, and 100%, respectively. CONCLUSION: The presence of CAC on preoperative CT scanning is associated with cardiac complications of noncardiac thoracic surgery; however, the positive predictive value is low. The absence of CAC was a reliable predictor of a favorable postoperative cardiac course.

Adult↗
PubMedDate not supplied

Cartilaginous disorders of the chest.

Cartilaginous disorders of the thorax can arise in the parenchyma, airways, chest wall, and axial skeleton. At radiography, pulmonary hamartoma is characterized by "popcorn" calcification or fat density, either of which is diagnostic. Bronchiectasis is best demonstrated at high-resolution computed tomography (CT) and has a "tramline" or "signet ring" appearance. Tracheopathia osteochondroplastica appears at CT as multiple sessile submucosal nodules with or without calcification along the cartilaginous portion of the trachea. In relapsing polychondritis, the trachea and mainstem bronchi have diffuse or focal thickening with luminal narrowing at radiography. Costochondritis of the chest wall has become more prevalent with increased intravenous drug abuse and may be demonstrated at CT as soft-tissue swelling along with underlying cartilaginous fragmentation and bone destruction. Enchondromas are expansile and may display a calcified cartilaginous matrix at radiography. In osteochondroma, the thickness of the cartilaginous cap determines the likelihood of malignant degeneration. At radiography, chondroblastomas have a round contour, sharp margins, and cortical scalloping, whereas chondrosarcomas are large masses with indistinct margins, cortical breakthrough, and soft-tissue extension. By identifying either a process affecting a cartilage-containing structure or a cartilaginous matrix within a lesion, the chest radiologist may be able to narrow the list of differential diagnostic possibilities substantially.

Cartilage Diseases↗