vaginal transfer
Introduction
Introduction The vagina and ovaries are the most common sites of cancer metastasis in the female reproductive tract. Tumors of the reproductive tract itself and other parts of the genital tract may be transferred to the vagina. Metastatic tumors are most common in vaginal tumors, while primary vaginal cancers are relatively rare. This symptom is vaginal transfer. Tumors derived from the pelvic and abdominal organs are mainly transferred through the surface, direct infiltration of the lymphatics and bloodways to the vagina, while metastases in other parts of the body are mainly transferred through the blood.
Cause
Cause
The cause of vaginal metastasis:
Tumors derived from the pelvic and abdominal organs are mainly transferred through the surface, direct infiltration of the lymphatics and bloodways to the vagina, while metastases in other parts of the body are mainly transferred through the blood. The following mainly introduces the ways and means of metastasis to the vagina in other parts of the common reproductive tract.
The pathway of cervical cancer metastasis to the vagina has three pathways: surface dissemination surface implantation and submucosal lymphatic vessel diffusion. Cervical cancer cells infiltrate into the vaginal vault and the vaginal wall. The vaginal wall is infiltrated by cancer. It can be vaginal mucosa, submucosa and muscle layer to the vagina alone or simultaneously. It can also be retrogradely spread by means of the vaginal mucosa rich lymph. Isolated nodules appear on the vaginal wall away from the original foci.
Ovarian cancer can be transferred to the vagina through the fallopian tube and uterine cavity through blood, lymphatic metastasis and direct invasion of vaginal or cancerous ascites. The vagina is rich in blood vessels and lymphatic vessels, and the venous plexus and lymphatic circulation of the female genital tract are connected. Such ovarian venous tumor thrombus may be retrograde through the vine plexus to the vaginal venous plexus or through the bloodstream to the vagina. After para-aortic lymph node metastasis can be retrograde to vaginal lymphatic network to cause vaginal metastasis, metastatic cancer in the lower part of the vagina may be mainly derived from lymph node metastasis. The pelvic floor tumor directly invades the vagina. After the ovarian cancer is reduced, the tumor often invades the vaginal stump.
Endometrial cancer cells are excreted into the uterine cavity and transferred to the vagina through implantation. They can also be metastasized by blood. Most of the metastasis is formed by the lymphatic pathway. After endometrial cancer metastasis invades the cervix, its pathway to the vagina is similar to cervical cancer.
Gestational trophoblastic tumor cells invade the uterine vein. Because there is no venous valve in the vaginal vein, the uterine venous blood containing cancer cells can be retrogradely vaginal venous plexus, forming a tumor thrombus in the vaginal vein, and then developing a vaginal metastatic nodule.
Examine
an examination
Related inspection
Vulvar gynecological routine examination gynecological routine examination vaginal secretion examination
Examination and diagnosis of vaginal metastasis:
In the past, there was a history of diagnosis and treatment of cancer, or treatment of cancer, increased vaginal secretions or vaginal bleeding. Gynecological examination revealed typical cancerous nodules in the vagina. Local biopsy showed that the histomorphological structure was the same as that of the primary cancer. Evidence of primary vaginal cancer is generally easily diagnosed. However, if vaginal metastasis is the first manifestation of other tumors, it is first necessary to obtain a pathological biopsy to determine whether it is adenocarcinoma or squamous cell carcinoma, and then to find the site of the primary tumor, and generally find the site of the primary tumor.
Diagnosis
Differential diagnosis
Symptom identification of vaginal metastasis:
Differential diagnosis of vaginal metastasis: attention to the differentiation of various primary vaginal cancer, metastatic cancer lacks primary vaginal epithelial cancer evolution process, in accordance with the provisions of the International Federation of Obstetrics and Gynecology, continuous with the cervix Vaginal cancer should be classified as cervical cancer. Vulvar cancer with continuous vulva should belong to vulvar cancer. Only when there is no cervical cancer or vulvar cancer, can it be diagnosed as primary vaginal cancer. There are some urinary tumors such as renal cancer vaginal metastasis can be its earliest manifestations, so in this case should consider the possibility of kidney cancer.
In the past, there was a history of diagnosis and treatment of cancer, or treatment of cancer, increased vaginal secretions or vaginal bleeding. Gynecological examination revealed typical cancerous nodules in the vagina. Local biopsy showed that the histomorphological structure was the same as that of the primary cancer. Evidence of primary vaginal cancer is generally easily diagnosed. However, if vaginal metastasis is the first manifestation of other tumors, it is first necessary to obtain a pathological biopsy to determine whether it is adenocarcinoma or squamous cell carcinoma, and then to find the site of the primary tumor, and generally find the site of the primary tumor.
