Conclusion Melanosis coli is inflammation,benign,reversibility chromatosis as characteristic,the disease is related to taking anthracene for long time constipation.
The diagnosis should be differentiated with benign lymphoepithelioma, metastasis or infiltrated poorly differentiated squamous cell carcinoma and malignant lymphoma.
We have treated 35 patients who is sick gynecologial benign tumor and needs panhysterectomy by LAVH(laparoscopically assisted vaginal hysterectomy) form July,1997.
Primary mediastinal germ-cell tumors (GCTs) without gonadal involvement are rare and can be divided into benign mature teratoma and malignant seminoma or nonseminoma.
It is an unusual clinical presentation of speckled lentiginous nevus which must be differentiated from benign pigmented lesions due to a potential for malignant changes.
Nasopharyngeal fibroma is a very rare, benign, soft tissue tumor.This disease almost always occurs in young men.It is also called polypoid fibroma or fibromatous polyp.
Methods X-ray and CT findings of one patient with surgically and pathologically proved benign cementoblastoma(BCB)in left mandibular region were analyzed together with review of the literature.