PURPOSE: Laparoscopic cholecystectomy (LC) has been accepted as one of the best methods for treatment of patients with gallbladder (GB) disease. Diagnosis of malignant gallbladder disease by radiologic finding is possible; however, some cases can be diagnosed incidentally as cancer of the gallbladder after a LC. Prognosis of GB cancer is very poor; however, a complete recovery can be achieved with early detection and resection. This study was performed in order to determine incidence and clinical features of incidentally detected GB cancer after LC. METHODS: A retrospective analysis of 10 Patients diagnosed as GB polyp prior to surgery, but diagnosed incidentally as GB cancer after LC from January 2002 to February 2011 was conducted. RESULTS: Of 124 cases of GB polyp, 10 patients were diagnosed as incidental GB cancer, with incidence rate of approximately 8%. Mean age was 60.9. Mean diameter of polyps was 1.1 cm, with six cases of pedunculated polyps, and four cases of sessile polyps. GB stones were diagnosed by radiologic study prior to surgery in four patients. Four patients had pT1a tumors (limited to mucosa) and six patients had pT2 (invaded perimuscular tissue) or pT3 (perforated serosa, direct invasion into liver). CONCLUSION: Malignancy potential of GB polyps was 8%. Surgeons should be aware of the possibility of malignancy and frozen section biopsy should be performed for examination of suspected GB tissue. If needed, radical cholecystectomy should be performed.
Biopsy ; Cholecystectomy ; Cholecystectomy, Laparoscopic ; Frozen Sections ; Gallbladder ; Gallbladder Diseases ; Gallbladder Neoplasms ; Humans ; Incidence ; Polyps ; Prognosis ; Retrospective Studies ; Serous Membrane

A study of 426 rabbits from 3 cities in Jilin province (Changchun City and Jilin City) and Liaoning province (Shenyang City) was conducted between May and June 2015. The overall prevalence of E. bieneusi in rabbits was 0.94% (4/426), with 0% (0/116), 1.72% (3/174), and 0.74% (1/136) in Jilin, Changchun, and Shenyang City, respectively. Only 3 farms (farm 1 and farm 3 in Changchun City, farm 8 in Shenyang City) were PCR-positive for E. bieneusi. Moreover, rabbits of more than 6 months (1.72%) had the highest E. bieneusi prevalence, followed by rabbits of 4-6 months (1.26%), 2-3 months (0.58%), and less than 1 month (0%). Analysis of ITS gene of E. bieneusi suggested that all 4 E. bieneusi isolates were genotype D, and were classified as group 1a. The present results first demonstrated the existence of zoonotic E. bieneusi in domestic rabbits in China. Effective control measures should be implemented to prevent E. bieneusi infection in domestic rabbits, other animals, and humans.
Animals ; China/epidemiology ; DNA, Ribosomal Spacer/genetics ; Enterocytozoon/*genetics ; Genotype ; Microsporidiosis/epidemiology/parasitology/prevention & control/*veterinary ; Rabbits/*microbiology ; Zoonoses/microbiology/prevention & control

Echinostoma hortense (Digenea: Echinostomatidae) is one of the intestinal flukes with medical importance in humans. However, the mitochondrial (mt) genome of this fluke has not been known yet. The present study has determined the complete mt genome sequences of E. hortense and assessed the phylogenetic relationships with other digenean species for which the complete mt genome sequences are available in GenBank using concatenated amino acid sequences inferred from 12 protein-coding genes. The mt genome of E. hortense contained 12 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and 1 non-coding region. The length of the mt genome of E. hortense was 14,994 bp, which was somewhat smaller than those of other trematode species. Phylogenetic analyses based on concatenated nucleotide sequence datasets for all 12 protein-coding genes using maximum parsimony (MP) method showed that E. hortense and Hypoderaeum conoideum gathered together, and they were closer to each other than to Fasciolidae and other echinostomatid trematodes. The availability of the complete mt genome sequences of E. hortense provides important genetic markers for diagnostics, population genetics, and evolutionary studies of digeneans.
Amino Acid Sequence ; Base Sequence ; Databases, Nucleic Acid ; Dataset ; Echinostoma* ; Echinostomatidae ; Fasciolidae ; Genes, rRNA ; Genetic Markers ; Genetics, Population ; Genome ; Genome, Mitochondrial* ; Humans ; RNA, Transfer ; Trematoda