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Biomedical subjects

C Carreira

Publications and source records attributed to C Carreira.

6 recordsLinked to original sources

A cavernous haemangioma of breast in male: radiological-pathological correlation.

Vascular tumours of the breast are especially rare in men, and a majority of them are angiosarcomas. In fact, we found only four cases of haemangioma in males in the literature. We present a case of cavernous haemangioma in a male aged 48 years, and which commenced as a palpable mass. We performed differential diagnosis and radiological-pathological correlation. We established the correct classification of this case histologically, and decided on the definitive therapeutic approach.

Biopsy, Needle↗

Mammary tuberculosis: percutaneous treatment of a mammary tuberculous abscess.

It is currently very rare to find mammary involvement in cases of tuberculosis, in either primary or secondary form. Diagnosis is classically clinical and microbiological, and the basic techniques used in imaging diagnosis are mammography and ultrasound. Computed tomography may define the involvement of the thoracic wall in those cases which present as mammary masses adhering to deep levels, and is also able to evaluate accompanying pulmonary disease, if it is present. Traditionally, treatment has consisted of quadrantectomy and specific antibiotic therapy. We present a case of tuberculous mammary abscess secondary to pulmonary disease, which was treated by percutaneous drainage controlled by CT and specific antibiotic therapy. We revise the diagnosis, differential diagnosis and treatment of mammary tuberculosis.

Abscess↗

Conception control by vaginal administration of pills containing ethinyl estradiol and dl-norgestrel.

One hundred twenty-four women of reproductive age have used vaginal pills containing 50 micrograms dl-norgestrel and 35 micrograms ethinyl estradiol to prevent conception for periods ranging from 6 to 20 months. One thousand four hundred thirty-eight woman-months were recorded. No pregnancies occurred. Cycle control was good. Bleeding usually lasted 3 to 5 days, and the interval between withdrawal bleeding events was 26 to 30 days in 86% of the cycles. Amenorrhea, breakthrough bleeding, and spotting occurred rarely. The continuation rate at 1 year was 64%.

Adolescent↗

Heart rate and avoidance conditioned activity in rats.

In accordance with the determination of base-line heart rate and running in an activity wheel, 14 Long-Evans male rats were given ten 30 minute sessions of Immobile-Avoid conditioning followed by 30 minute sessions of Active-Avoid conditioning. Control Ss were yoked to the experimental Ss. Experimental Ss made significantly fewer responses in the immobile-avoid period and significantly more responses in the active-avoid period than did the yoked control Ss. Heart rate was correlated with skeletal activity both for experimental and control Ss. For experimental Ss, low heart rate was concomitant with a low amount of activity in the immobile-avoid peroid and high heart rate was concomitant with greater skeletal activity in the active-avoid period. These results support the position that heart rate is secondary to responses of the somatic-motor system and that heart rate during immobile-avoid or active avoid conditioning is more closely related to the level of somatic-motor activity than to the emotional stress which purportedly motivates instrumental avoidance behavior.

Acoustic Stimulation↗