A case of heterotopic pancreas in lymph node

A case of pancreatic heterotopia in a lymph node is described. Small pieces of pancreatic tissue were found incidentally in four lymph nodes located around the common hepatic artery in a 65-year-old man. Both exo- and endocrine elements of the pancreas, together with ductal structures were found to constitute the heterotopic tissue. No authentic case of heterotopic pancreas in lymph nodes has been previously reported in the literature.

Neuroepithelial Cyst of the cerebellar vermis

A cyst located in the cerebellar vermis and causing obstructive hydrocephalus is described. The wall of the cyst was lined with ciliated and non-ciliated cuboidal epithelial cells which were completely invested by a basement membrane.

A new universal stereoencephalotome (model 6)

This new model is a modification of a previous one (No. III by Spiegel and Wycis). It permits access to the brain not only from the top but also from either side and from the back. It carries miniature X-ray tubes.

Evaluation of a Rapid Procedure for Determining Organochlorine Insecticides in Raw and Canned Beef and Cheese Fat by Microcoulometric GLC

The ingenious, completely column chromatographic cleanup procedure described by Wood for organochlorine pesticide residues in fats was found to be excellent for sample preparation for GLC analysis by chloride determination using a microcoulometric detector. Fortification studies on corned beef and ground beef fats (0.07–3.90 ppm) and cheese fat (0.02–0.50 ppm) with lindane, dieldrin, p,p′-DDT, and p,p′-DDE indicated recoveries no lower than 60% but generally greater than 80%. Only noninterfering trace amounts of fatty materials remained after the cleanup of 2 g fat samples.