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Biomedical subjects

B Proctor

Publications and source records attributed to B Proctor.

At least 37 records · Page 2Linked to original sources
PubMed1976

Carcinoma arising in thyroglossal duct remnants.

Papillary adenocarcinoma arising in a thyroglossal cyst is described in a 38-year-old man to make a total of 83 cases in the literature. Most cases appear to be benign thyroglossal duct cysts. The malignant nature of the lesion was recognized only after the permanent pathology sections were reviewed. Paillary carcinoma was the most common type of carcinoma arising in thyroglossal duct remnants. Local resection by the Sistrunk method is the standard treatment when the malignancy has not extended beyond the confines of the cyst. The differentiation between a carcinoma arising in a thyroglossal duct remnant and a metastatic papillary carcinoma from an occult primary in the main thyroid gland is discussed.

Adenocarcinoma, Papillary↗
PubMed1972

Tympanoplasty.

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Cholesteatoma↗
PubMed1970

Tympanoplasty.

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Amnion↗
PubMed1966

Tympanoplasty.

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Humans↗
PubMed1966

Tympanoplasty.

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Humans↗
PubMedDate not supplied

Disruption of neostriatal development in rats following perinatal exposure to mild, but chronic carbon monoxide.

The vulnerability of the developing neostriatum to mild, but chronic hypoxia was evaluated in weanling rats exposed only in utero or from conception through postnatal day 10 to 0, 75, 150, and 300 ppm carbon monoxide (CO). The exposure conditions produced maternal carboxyhemoglobin (HbCO) levels of about 11, 19, and 27 percent. HbCO levels of 5 percent are maintained by human cigarette smokers while comparable levels in non-smokers average less than 1%. Significant elevations in DNA and the neurotransmitter, dopamine (DA), were observed in the striatum of 21-day-old rats following the combined pre- and neonatal CO exposure. These neurochemical changes were observed 11 days after CO exposure was terminated and, therefore, cannot be interpreted as acute responses to reduced oxygen. These data indicate that the immature neostriatum is altered by even mild hypoxic insults presented during the time of neuronal proliferation and synaptogenesis.

3,4-Dihydroxyphenylacetic Acid↗