A case of retroperitoneal haematoma due to a ruptured microaneurysm of the posterior superior pancreaticoduodenal artery in a 61 year old man is described. Ultrasonography and computed tomography revealed cystic masses near the gall-bladder. Selective coeliac angiography disclosed a microaneurysm of the posterior superior pancreaticoduodenal artery. Surgical extirpation of the cystic masses was performed, and the histological finding was an encapsulated old haematoma.

Aneurysm, Ruptured↗

PubMedDate not supplied

Laparoscopic observation of retroperitoneal cystic lymphangioma.

A case of retroperitoneal cystic lymphangioma observed laparoscopically is reported. In a 60 year old asymptomatic male patient, an 8 cm multi-loculated cystic lesion was detected incidentally near the splenic hilum with ultrasonography. Endosonography, computed tomography and magnetic resonance imaging revealed the lesion with thin wall and clear fluid. Laparoscopy showed a thin-walled cyst with smooth surface, and straw-coloured clear fluid was observed through the wall. These findings suggested benign aetiology, and seemed to be characteristic of cystic lymphangioma. The tumour was resected, and microscopic examination showed proliferated lymph channels intespersed by lymph follicles. Diagnosis of cystic lymphangioma was established. Laparoscopy seems a useful pre-operative method.

Humans↗

PubMedDate not supplied

Methylglyoxal bis (cyclopentylamidinohydrazone) (MGBCP): antitumor effect against human osteosarcoma cells and combined effect with methotrexate, adriamycin and 4-hydroperoxyifosfamide.

The antitumor effect of a polyamine biosynthetic pathway inhibitor methylglyoxal bis(cyclopentylamidinohydrazone) (MGBCP) on human osteosarcoma cell lines such as KHOS-240S, MG-63 and G-292 cells, and its effect in combination with anticancer drugs such as methotrexate (MTX), adriamycin (ADM) and 4-hydroperoxyfosfamide (HIFO) have been investigated. The growth of these cultured osteosarcoma cells was inhibited by MGBCP in a dose-dependent manner. Spermidine and spermine levels were dose-dependently depressed in these MGBCP-treated osteosarcoma cells. The antitumor effect of MGBCP was additively potentiated by combined treatment with MTX, ADM and HIFO, respectively.

Antineoplastic Agents↗

PubMedDate not supplied

Effects of methylglyoxal bis (cyclopentylamidinohydrazone) (MGBCP) on cell cycle progression in three human osteosarcoma cell lines.

Our previous experiments have indicated that the antitumor effects of a polyamine biosynthetic inhibitor, methylglyoxal bis(cyclopentylamidinohydrazone) (MGBCP), on human osteosarcoma cell lines such as MG-63, G-292 and HOS cells are obtained by its action depleting the cellular polyamine contents. In the present study, the effects of polyamine depletion by MGBCP on the cell cycle progression in these osteosarcoma cell lines were investigated by flow cytofluormetric analysis. MGBCP arrested the tumor cells at the G1 phase by preventing the G/S phase transition. Mitotic indexes (MIs) in these MGBCP-inhibited tumor cells were also decreased. These findings suggest that MGBCP suppresses the cell cycle progression in osteosarcoma MG-63, G-292 and HOS cells by inhibiting intracellular polyamine biosynthesis.

Antineoplastic Agents↗