Fallopian tube cancer

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Primary fallopian tube cancer (PFTC), often just tubal cancer, is a malignant neoplasm that originates from the fallopian tube. [1]

Contents

Signs and symptoms

The internal location of the fallopian tubes makes it difficult to reach an early diagnosis. Symptoms are nonspecific, and may consist of pain and vaginal discharge or bleeding. A pelvic mass may be detected on a routine gynecologic examination.

Vaginal discharge in fallopian tube carcinoma results from intermittent hydrosalphinx, also known as hydrops tubae profluens. [2]

Pathology

The most common cancer type within this disease is adenocarcinoma; in the largest series of 3,051 cases as reported by Stewart et al. 88% of cases fell into this category. [3] According to their study, half of the cases were poorly differentiated, 89% unilateral, and the distribution showed a third each with local disease only, with regional disease only, and with distant extensions. Rarer forms of tubal neoplasm include leiomyosarcoma, and transitional cell carcinoma.

As the tumor is often enmeshed with the adjacent ovary, it may be the pathologist and not the surgeon who determines that the lesion is indeed tubal in origin.

Secondary tubal cancer usually originates from cancer of the ovaries, the endometrium, the GI tract, the peritoneum, and the breast.

Diagnosis

A pelvic examination may detect an adnexal mass. A CA-125 blood test is a nonspecific test that tends to be elevated in patients with tubal cancer. More specific tests are a gynecologic ultrasound examination, a CT scan, or an MRI of the pelvis. Occasionally, an early fallopian tube cancer may be detected by chance during pelvic surgery.

Staging

International Federation of Gynecology and Obstetrics (FIGO) staging is done at the time of surgery:

Stage 0: Carcinoma in situ
Stage I: Growth limited to fallopian tubes
Stage II: Growth involving one or both fallopian tubes with extension to pelvis
Stage III: Tumor involving one or both fallopian tubes with spread outside pelvis
Stage IV: Growth involving one or more fallopian tubes with distant metastases

Treatment

The initial approach to tubal cancer is generally surgical, and similar to that of ovarian cancer. As the lesion will spread first to the adjacent uterus and ovary, a total abdominal hysterectomy is an essential part of this approach, removing the ovaries, the tubes, and the uterus with the cervix. Also, peritoneal washings are taken, the omentum is removed, and pelvic and paraaortic lymph nodes are sampled. Staging at the time of surgery and pathological findings will determine further steps. In advanced cases when the cancer has spread to other organs and cannot be completely removed, cytoreductive surgery is used to lessen the tumor burden for subsequent treatments. Surgical treatments are typically followed by adjuvant, usually platinum-based, chemotherapy. [4] [5] Radiation therapy has been applied with some success to patients with tubal cancer for palliative or curative indications. [6]

Prognosis

Prognosis depends to a large degree on the stage of the condition. In 1991 it was reported that about half of the patients with advanced stage disease survived 5 years with a surgical approach followed by cisplatinum-based chemotherapy. [7]

Frequency

Tubal cancer is thought to be a relatively rare primary cancer among women, accounting for 1 to 2 percent of all gynecologic cancers, [8] In the US, tubal cancer had an incidence of 0.41 per 100,000 women from 1998 to 2003. [3] Demographic distribution is similar to that of ovarian cancer, and the highest incidence is found in white, non-Hispanic women aged 60–79. [3] However, recent evidence suggests tubal cancer to be much more frequent . [9]

Evidence is accumulating that individuals with mutations of BRCA1 and BRCA2 are at higher risk for the development of PFTC. [10] [11]

See also

SEE-FIM Protocol

Related Research Articles

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<span class="mw-page-title-main">Endometrial cancer</span> Uterine cancer that is located in tissues lining the uterus

Endometrial cancer is a cancer that arises from the endometrium. It is the result of the abnormal growth of cells that have the ability to invade or spread to other parts of the body. The first sign is most often vaginal bleeding not associated with a menstrual period. Other symptoms include pain with urination, pain during sexual intercourse, or pelvic pain. Endometrial cancer occurs most commonly after menopause.

<span class="mw-page-title-main">Ovarian cancer</span> Cancer originating in or on the ovary

Ovarian cancer is a cancerous tumor of an ovary. It may originate from the ovary itself or more commonly from communicating nearby structures such as fallopian tubes or the inner lining of the abdomen. The ovary is made up of three different cell types including epithelial cells, germ cells, and stromal cells. When these cells become abnormal, they have the ability to divide and form tumors. These cells can also invade or spread to other parts of the body. When this process begins, there may be no or only vague symptoms. Symptoms become more noticeable as the cancer progresses. These symptoms may include bloating, vaginal bleeding, pelvic pain, abdominal swelling, constipation, and loss of appetite, among others. Common areas to which the cancer may spread include the lining of the abdomen, lymph nodes, lungs, and liver.

<span class="mw-page-title-main">Ovarian clear-cell carcinoma</span> One of the subtypes of ovarian carcinoma

Ovarian clear-cell carcinoma, or clear-cell carcinoma of the ovary, also called ovarian clear-cell adenocarcinoma, is one of several subtypes of ovarian carcinoma – a subtype of epithelial ovarian cancer, in contrast to non-epithelial cancers. According to research, most ovarian cancers start at the epithelial layer which is the lining of the ovary. Within this epithelial group ovarian clear-cell carcinoma makes up 5–10%.

<span class="mw-page-title-main">Serous tumour</span> Medical condition

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<span class="mw-page-title-main">Surface epithelial-stromal tumor</span> Medical condition

Surface epithelial-stromal tumors are a class of ovarian neoplasms that may be benign or malignant. Neoplasms in this group are thought to be derived from the ovarian surface epithelium or from ectopic endometrial or Fallopian tube (tubal) tissue. Tumors of this type are also called ovarian adenocarcinoma. This group of tumors accounts for 90% to 95% of all cases of ovarian cancer; however is mainly only found in postmenopausal women with the exception of the United States where 7% of cases occur in women under the age of 40. Serum CA-125 is often elevated but is only 50% accurate so it is not a useful tumor marker to assess the progress of treatment. 75% of women with epithelial ovarian cancer are found within the advanced-stages; however younger patients are more likely to have better prognoses than older patients.

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<span class="mw-page-title-main">Primary peritoneal carcinoma</span> Medical condition

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<span class="mw-page-title-main">Hydrosalpinx</span> Medical condition

A hydrosalpinx is a condition that occurs when a fallopian tube is blocked and fills with serous or clear fluid near the ovary. The blocked tube may become substantially distended giving the tube a characteristic sausage-like or retort-like shape. The condition is often bilateral and the affected tubes may reach several centimeters in diameter. The blocked tubes cause infertility. A fallopian tube filled with blood is a hematosalpinx, and with pus a pyosalpinx.

Sarcoma botryoides or botryoid sarcoma is a subtype of embryonal rhabdomyosarcoma, that can be observed in the walls of hollow, mucosa lined structures such as the nasopharynx, common bile duct, urinary bladder of infants and young children or the vagina in females, typically younger than age 8. The name comes from the gross appearance of "grape bunches".

<span class="mw-page-title-main">Fallopian tube obstruction</span> Medical condition

Fallopian tube obstruction, also known as fallopian tube occlusion is a major cause of female infertility. Blocked fallopian tubes are unable to let the ovum and the sperm converge, thus making fertilization impossible. Fallopian tubes are also known as oviducts, uterine tubes, and salpinges.

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<span class="mw-page-title-main">Uterine serous carcinoma</span> Type of cancer of the uterus

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<span class="mw-page-title-main">Ovarian torsion</span> Medical condition

Ovarian torsion (OT) or adnexal torsion is an abnormal condition where an ovary twists on its attachment to other structures, such that blood flow is decreased. Symptoms typically include pelvic pain on one side. While classically the pain is sudden in onset, this is not always the case. Other symptoms may include nausea. Complications may include infection, bleeding, or infertility.

Adenosarcoma is a rare malignant tumor that occurs in women of all age groups, but most commonly post-menopause. Adenosarcoma arises from mesenchymal tissue and has a mixture of the tumoral components of an adenoma, a tumor of epithelial origin, and a sarcoma, a tumor originating from connective tissue. The adenoma, or epithelial component of the tumor, is benign, while the sarcomatous stroma is malignant. The most common site of adenosarcoma formation is the uterus, but it can also occur in the cervix and ovaries. It more rarely arises in the vagina and fallopian tubes as well as primary pelvic or peritoneal sites, such as the omentum, especially in those with a history of endometriosis. The rare cases of adenosarcoma outside the female genital tract usually occur in the liver, bladder, kidney, as well as the intestine and are typically associated with endometriosis.

<span class="mw-page-title-main">Paraovarian cyst</span> Medical condition

Paraovarian cysts or paratubal cysts are epithelium-lined fluid-filled cysts in the adnexa adjacent to the fallopian tube and ovary. The terms are used interchangeably, and depend on the location of the cyst.

<span class="mw-page-title-main">High-grade serous carcinoma</span> Medical condition

High-grade serous carcinoma (HGSC) is a type of tumour that arises from the serous epithelial layer in the abdominopelvic cavity and is mainly found in the ovary. HGSCs make up the majority of ovarian cancer cases and have the lowest survival rates. HGSC is distinct from low-grade serous carcinoma (LGSC) which arises from ovarian tissue, is less aggressive and is present in stage I ovarian cancer where tumours are localised to the ovary.

<span class="mw-page-title-main">Prophylactic salpingectomy</span> Surgical technique

Prophylactic salpingectomy is a preventative surgical technique performed on patients who are at higher risk of having ovarian cancer, such as individuals who may have pathogenic variants of the BRCA1 or BRCA2 gene. Originally salpingectomy was used in cases of ectopic pregnancies. As a preventative surgery however, it involves the removal of the fallopian tubes. By not removing the ovaries this procedure is advantageous to individuals who are still of child bearing age. It also reduces risks such as cardiovascular disease and osteoporosis which are associated with removal of the ovaries.

Ovarian germ cell tumors (OGCTs) are heterogeneous tumors that are derived from the primitive germ cells of the embryonic gonad, which accounts for about 2.6% of all ovarian malignancies. There are four main types of OGCTs, namely dysgerminomas, yolk sac tumor, teratoma, and choriocarcinoma.

<span class="mw-page-title-main">SEE-FIM Protocol</span> Pathology protocol to assess cancer risk

The SEE-FIM protocol is a pathology dissection protocol for Sectioning and Extensively Examining the Fimbria (SEE-FIM). This protocol is intended to provide for the optimal microscopic examination of the distal fallopian tube (fimbria) to identify either cancerous or precancerous conditions in this organ.

References

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