1. Primary actinomycosis of the greater omentum.

2. Abdominal actinomycosis is a rare infection and the appendix is the most common intra-abdominal organ involved.

3. A liver abscess with actinomycosis is rare(), especially in children. To our knowledge this is the first report on this disease in the form of a subcutaneous mass.

4. Primary gastric actinomycosis is very rare and difficult to diagnose. We report a case of a 61-year-old woman admitted with complaints of persistent epigastric pain for two days.

5. Endobronchial actinomycosis is a rare condition and may mimic a neoplasm, tuberculosis, or pneumonia.

6. Actinomycosis of the udder in a specific condition which will destroy the gland completely and can cause abscessation and subsequent fibrosis.

7. Conclusion:The actinomycosis must differentiate with malignant tumor, expecially in chronic course of the actinomycosis, the key was to do pathologic examination in operation.

8. Actinomycosis is a rare disease occurring in genitourinary tract. The infection route is usually direct invasion of the actinomyces into damaged skin.

9. The combination of a foreign body and endobronchial actinomycosis is exceedingly rare in reviews.

10. Actinomycosis responds well to antibiotic therapy. Early and correct recognition of the disease allows effective treatment.

11. Objective: Most cases of pelvic actinomycosis undergo surgical extirpation, usually by means of a hysterectomy and a bilateral salpingo- oophorectomy .

12. For the treatment of an appendiceal actinomycosis, an en-bloc surgical resection of all involved surrounding organs and appropriate antibiotic therapy will be necessary.

13. We report one case of actinomycosis in a patient associated with squamous cell carcinoma of the esophagus.

14. Actinomycosis of the greater omentum, although rare, should be included in the differential diagnosis of an omental mass especially in patients with fever (or leukcytosis).

15. The number of lesions that mimic actinomycosis of the lung is extensive.

16. To the best of our knowledge, this is the seventh report of omental actinomycosis not requiring resection of the intestine for the total removal of the disease tissue.

17. Actinomycosis of the greater omentum is rare. A case of histologically proven actinomycosis of the greater omentum was reported.

18. Objective : To deeply explore the happening, development and clinicopathologic features of the actinomycosis.

19. The pathological report showed that the liver abscess was caused by actinomycosis.

20. AIM To evaluate the clinic manifestations of primary lung actinomycosis.