The Vagaries of Pheochromocytomas

Vagaries of the molecular clock.

The hypothesis of the molecular evolutionary clock asserts that informational macromolecules (i.e., proteins and nucleic acids) evolve at rates that are constant through time and for different lineages. The clock hypothesis has been extremely powerful for determining evolutionary events of the remote past for which the fossil and other evidence is lacking or insufficient. I review the evolution...

The vagaries of informed consent.

The Vagaries of Adipose Tissue Innervation

Adipose tissue does not seem to be innervated in any significant manner by the vagus nerve after all. As reported by Giordano et al. in this issue, retrograde tracing with pseudorabies virus from at least one fat pad in the Syrian hamster reveals only the occasional neuron in the vagal motor nucleus and nerve fibers in adipose tissue of mouse, rat, and hamster do not exhibit any of the markers ...

Vagaries of adipose tissue innervation.

ADIPOSE TISSUE DOES NOT SEEM to be innervated in any significant manner by the vagus nerve after all. As reported by Giordano et al. (9) in this issue, retrograde tracing with pseudorabies virus from at least one fat pad in the Siberian hamster reveals only the occasional neuron in the vagal motor nucleus and nerve fibers in adipose tissue of mouse, rat, and hamster do not exhibit any of the ma...

The eponyms and vagaries of sarcoidosis.

Diagnosis: Congenital Bronchogenic Cyst The roentgenogram of the chest (Fig 1) demonstrates a large, oblique, homogeneous shadow with a sharp border in the right lower lobe. No calcifica-tion is seen within the lesion. Thoracotomy revealed a 3x5x2 cm thick-walled cystic mass filled with mucoid material deep within the right lower lobe. It showed no abnormal bronchial communication and had no sy...