To investigate the prevalence and genotype distribution of Chlamydia trachomatis infection among men who have sex with men (MSM), 145 MSM from two sauna settings in Shenzhen, China were invited to participate in this study during September 2008 and May 2009. Anorectal swab and urine samples were collected and tested for chlamydial infection, and positive samples were genotyped. The prevalence o...

BACKGROUND Both anorectal Chlamydia trachomatis (CT) and Neisseria gonorrhoea (NG) can occur as a rectal-only infection or concurrently with simultaneous urogenital infection with the same pathogen. Characterising the target groups in which rectal-only infections occur may improve the efficacy of screening practices. METHODS We analysed data from two Dutch outpatient sexually transmitted infe...

BACKGROUND & OBJECTIVES Streptococcus agalactiae (group B streptococcus, GBS) is the predominant bacterial agent responsible for invasive perinatal infection. To obtain reliable data on vaginal and rectal carriage of S. agalactiae in pregnant women in Czech Republic, and to formulate a prevention programme of neonatal GBS disease for the Czech Republic, women at childbirth were screened for vag...

A 71-year-old female with hypertension presented painless rectal bleeding and found to have a soft mass on exam. The colonoscopy revealed large pedunculated polyp patchy discoloration arising from the dentate line (Fig. 1). Biopsies of were obtained.

acuminatum (GCA) on the penile foreskin. Buschke and Lowenstein further elaborated on this clinical entity in 1925. 2 GCA, synonymous with BuschkeLowenstein tumor, is a variant of condyloma acuminatum, which appeared cytologically benign but behaved in a malignant manner with the risk of transformation to invasive squamous cell carcinoma (SCC). GCA is characterized by its aggressiveness to unde...

Anorectal melanomas (ARM) are rare malignancies accounting for 0.4-0.6% of all melanoma cases and 1% of anorectal malignant tumors [1,2]. Surgery remains the gold standard treatment since melanoma are resistant to chemotherapy as well as radiotherapy. Conventionally two forms of surgical treatment are applicable for ARM–Abdominoperineal resection (APER) and wide local excision (WLE) [3]. Though...

A 46-year-old man visited the emergency department of our hospital with a 3-day history of anal pain, hemorrhaging, and a slight fever. He had previously been diagnosed with protein C deficiency and was prescribed dabigatran, a direct oral anticoagulant. Contrast-enhanced computed tomography showed severe rectal wall thickening with partial defect of enhancement. In addition, sigmoidoscopy reve...