Leiomyomatosis in pelvic lymph nodes.

A decidual reaction may occur in the pelvic lymph nodes during normal pregnancy. This reaction may be replaced by the same type of benign metaplastic reaction that gives rise to leiomyomatosis peritonealis disseminata. The occurrence of this apparent smooth muscle in the pelvic lymph nodes may result in an erroneous diagnosis of metastatic leiomyosarcoma, or of benign metastasizing leiomyoma.

TRYPTOPHAN SYNTHETASE FROM NEUROSPORA: A MODIFICATION IN THE REACTION SCHEME.

In addition to indole-3-glycerolphosphate, an unreported reaction product has been detected in incubation mixtures containing tryptophan synthetase from Neurospora, indole, and glyceraldehyde-3-phosphate. This product has been tentatively identified as an indole derivative. Since this compound is not formed in incubation mixtures initially containing only enzyme and indole-3-glycerolphosphate, it was concluded that indole-3-glycerolphosphate synthesis and breakdown are not simply the forward and reverse components of a reversible reaction.