RHYTHMICITY AND AUTOMATISM IN THE MAMMALIAN LEFT AURICLE

Angiomyxoma of the Left Auricle

Primary tumours of the heart are uncommon. Various authors estimated their frequency at autopsy as follows: Rand and Sachs (1943), o.5 per cent.; Straus and Merliss (I945), 0.0017 per cent.; Lymburner (1934), o.6I per cent. About three-quarters are benign and about half of the benign tumours are the so-called myxomas. Approximately 70 per cent. of these myxomas arise in the left auricle in the ...

[Mass thrombus of the left auricle].

Biopsy of the left auricle in mitral stenosis.

During the past three years operations upon the hearts of patients with mitral stenosis have been performed in increasing numbers (Baker et al., 1952). An opportunity has thus arisen to study by biopsy the changes in the heart and lungs at a time when, although the disease is fully established, the patient is still in a fairly good state of health. Previous morbid anatomical studies having been...

Requirement of mammalian Timeless for circadian rhythmicity.

Despite a central circadian role in Drosophila for the transcriptional regulator Timeless (dTim), the relevance of mammalian Timeless (mTim) remains equivocal. Conditional knockdown of mTim protein expression in the rat suprachiasmatic nucleus (SCN) disrupted SCN neuronal activity rhythms, and altered levels of known core clock elements. Full-length mTim protein (mTIM-fl) exhibited a 24-hour os...

[A case of myxoma of the left auricle].

In their paper on this subject Fawcett and Ward (1939) remark that only rarely do descriptions of this interesting lesion appear in British publications, there being only one report in the nine years preceding their article. The condition is well reviewed in their paper and in that of Gilchrist and Millar. (1936). It is the purpose of this article to describe a further case with an autopsy report.