Effects on syngeneic tumors of F1 lymphocytes sensitized in vitro by parental stimulator cells.

F1 lymphocytes stimulated in vitro by parental cells were evaluated for cytotoxicity against semisyngeneic tumors and lymphoblasts. B6AF1 (H-2a,b) spleen cells were placed in culture with C57BL/6 (H-2b) or B10.A (H-2a) cells and 6 days later were assayed for cell-mediated cytotoxicity in vitro; also subcutaneous, intraperitoneal, and intrapulmonary tumor neutralization experiments were performed.

Percutaneous transhepatic cholecystostomy.

Ultrasound-guided percutaneous cholecystostomy was performed in 11 patients. Indications were acute cholecystitis in 7 patients, and obstructive biliary disease in 4 patients. A transhepatic approach was used in all patients.

Rate of growth of intraabdominal metastases from colorectal cancer.

Monitoring the progression or regression of intraabdominal metastatic disease is required for knowledgeable management of chemotherapeutic regimens designed to treat metastases. Computerized tomography (CT) and CT with EOE-13, a liver contrast agent, allowed precise measurement of metastatic disease. The tumor doubling time of colorectal metastases in four patients was determined from serial CT scans of individual patients.