The ultrasound and computed tomographic imaging features in a rare pancreatic pseudocyst of the liver are described in two patients. The pseudocysts occurred in the left lobe in both cases, one after a traumatic injury and the other after alcoholic pancreatitis. The possible topographical sequences with which pancreatic secretions entered the left hepatic lobe to form a cyst are discussed.

Factors affecting shoot regeneration from hypocotyl segments of spinach (Spinacia oleracea L.) were investigated. When expiants were cultured on medium containing 10 mg/l IAA for 7 weeks, 3 out of 9 cultivars showed relatively high shoot regeneration response (15 - 35%). The other PGRs tested had no effect on shoot regeneration. However, the transfer of explants from auxin-containing medium to auxin-free medium 20 d after culture induced shoot formation from expiants cultured on media containing each of the auxin sources tested individually. By applying this short term auxin treatment, more than 80% shoot regeneration was obtained on medium containing 5-20 mg/l 5,6-Cl2-IAA, compared to less than 30% with 10-20 mg/l IAA treatment.

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