Diffuse liver infiltration by melanoma of unknown primary origin: one case report and literature review.

Diffuse liver infiltration by melanoma of unknown primary origin is rare. We encountered a unique case of diffuse liver infiltration by melanoma of unknown primary origin in our hospital. A 62-year-old woman was referred to our hospital for anorexia of 6 months duration and abdominal distension for 1 month.

Relationship between matrix metalloproteinase-2 mRNA expression and clinicopathological and urokinase-type plasminogen activator system parameters and prognosis in human gastric cancer.

Aim: To investigate the relationship between matrix metalloproteinase-2 (MMP-2) mRNA expression and clinicopathologic and urokinase-type plasminogen activator (uPA) system parameter and prognosis in human gastric cancer.

Methods: Expression of MMP-2 mRNA, uPA, and uPA-R mRNA in tumor tissues and > or =5 cm adjacent normal tissues from 67 cases of gastric cancer was studied using RT-PCR and Northern blot respectively. Survival analyses were done using the Kaplan-Meier method.

[The clinical value of miniature ultrasonic probes on diagnosis and treatment of digestive tract diseases].

Objective: To investigate the clinical value of miniature ultrasonic probes (MUP) in the diagnosis and treatment of digestive tract diseases.

Methods: 537 patients who were indicated for endoscopic ultrasorography (EUS) underwent EUS with 7.5 - 20 MHz MUP and double-cavity electronic endoscope.