Pelvic abscess caused by a slow growing anaerobic bacterium, Eggerthella lenta: First case report from Pakistan.

We report a case of intrauterine contraceptive device (IUCD) related pelvic abscess caused by a challenging to grow anaerobic Gram positive rod named Eggerthella lenta. A middle aged lady presented with complaints of lower abdomen pain, intermittent vaginal bleeding since two weeks. Ultrasound of abdomen and pelvis showed right adnexal mass involving fallopian tubes, right ovary and gut omentum. She underwent removal of adnexal mass and total abdominal hysterectomy and was treated empirically with vancomycin, ciprofloxacin and metronidazole. Histopathological examination disclosed adenomyosis and chronic non-specific endometritis. Microbiological evaluation of pus aspirate grew Eggerthella lenta.