Breast carcinoma and malignant melanoma metastasis within a single axillary lymph node

A 58 year old lady presented with a right breast cancer and a prior history of malignant melanoma excised from the right chest wall eight years previously. An abnormal axillary lymph node resected contained features of both metastatic breast carcinoma and malignant melanoma. Following oncologic breast cancer management, the patient is well with no evidence of recurrence at three years.     

A Comparative Study of Analogue and Digital Simulation of Ion Uptake by Plants

The kinetics of the uptake of phosphate ions from dilute solutionsby rice plants was studied by use of the continuous-flow technique.A model of the uptake process was examined by simulation carriedout using analogue and digital methods. The advantages and disadvantagesof each simulation method is discussed. It appears that filmdiffusion may exert an important influence on the uptake. Theuptake efficiency [(uptake with diffusion)/(uptake with completestirring)] is calculated for various conditions.