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ORIGINAL RESEARCH |
From the Department of Obstetrics and Gynecology and Division of Gynecologic Oncology, St. Lukes-Roosevelt Hospital, New York, New York.
Address reprint requests to: Therese R. Trenhaile, MD Department of Obstetrics and Gynecology St. Lukes-Roosevelt Hospital 1000 Tenth Avenue New York, NY 10019
| Abstract |
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Methods: The charts of five women with primary pelvic non-Hodgkins lymphoma were reviewed. Histologic classification was based on the Working Formulation, and staging was based on the Ann Arbor system. Disease status was monitored with physical examination and imaging studies.
Results: During a 10-month period, five women were diagnosed with primary pelvic non-Hodgkins lymphoma, including one parasacral, one uterine, one vaginal, and two ovarian tumors. Presentations included abdominal and pelvic pain, abdominal and pelvic mass, and abnormal vaginal bleeding. Treatment included combination chemotherapy, with or without radiation. Four patients were alive and disease free 2033 months after therapy.
Conclusion: Primary pelvic non-Hodgkins lymphoma may present like other more common gynecologic cancers. It should be considered in the differential diagnosis of gynecologic malignancy.
Although advanced non-Hodgkins lymphoma frequently involves the female genital tract, primary pelvic non-Hodgkins lymphoma is rare. In the National Cancer Database for 19851988 and 19901993, only 1.5% of extranodal non-Hodgkins lymphoma originated in the female genital tract.1 The incidence of non-Hodgkins lymphoma has increased recently, however, with the rate of extranodal tumors increasing more than nodal tumors. In recent decades, primary pelvic non-Hodgkins lymphoma has been reported in the retroperitoneum, ovary, uterine corpus, uterine cervix, vagina, and vulva.210
| Materials and Methods |
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| Results |
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The second patient was a 54-year-old white woman who presented with pelvic pain and a nodular vaginal tumor. An ultrasound identified a posterior vaginal mass measuring 7.8 cm x 4.5 cm x 5.9 cm. She was referred for suspected vaginal cancer. A true cut biopsy of the rectovaginal septum revealed high-grade cleaved large B cell non-Hodgkins lymphoma of the vagina. Endocervical and endometrial curretings were normal. Stage IV disease was diagnosed after CT identified extensive pelvic lymphadenopathy. The patient received combination chemotherapy and pelvic radiation, and remained disease free 20 months after therapy.
The third patient was a 42-year-old white woman who presented with increasing abdominal girth and vague lower abdominal pain. On examination, the patients abdomen was distended, bulky, and bilateral adnexal masses were present. A CA-125 was 37 U/mL. The patient was referred for treatment of presumed ovarian cancer. An exploratory laparotomy was performed, revealing ascites, solid bilateral adnexal masses, and para-aortic lymphadenopathy. Surgical staging included a total abdominal hysterectomy and bilateral salpingo-oophorectomy. The pathology showed high-grade diffuse large B cell non-Hodgkins lymphoma involving the ovaries, the parametria, the uterine serosa, and outer myometrium. Stage IV ovarian non-Hodgkins lymphoma was diagnosed, and combination chemotherapy was administered. The patient was disease free 20 months after therapy.
The fourth patient was a 68-year-old white woman who presented with abdominal pain, nausea, and vomiting. On examination, her abdomen was distended and diffusely tender. Computed tomography showed solid, bilateral adnexal masses measuring 5 and 4 cm, omental implants, ascites, and pelvic lymphadenopathy. She was referred for treatment of presumed ovarian cancer. An exploratory laparotomy was performed, revealing ascites, enlarged ovaries, and tumor nodules on the omentum, liver, small bowel, and diaphragm. A bilateral oophorectomy was performed, and multiple biopsies were taken. The pathology showed diffuse large B cell non-Hodgkins lymphoma involving the ovaries, peritoneum, omentum, and ascites. Stage IVB ovarian non-Hodgkins lymphoma was diagnosed. The patient had received four cycles of chemotherapy when she developed lymphomatous meningitis, a rare complication of this disease. Despite two courses of intrathecal chemotherapy, the patient died of cerebral infarction.
The last patient was a 25-year-old black woman who was 32 weeks pregnant when she developed cauda equina syndrome. Magnetic resonance imaging (MRI) revealed a 7.5-cm x 12.5-cm x 9.5-cm pelvic mass contiguous with the spinal cord and invading the iliac bones. The appearance of the tumor was consistent with a cordoma. A percutaneous, CT-guided biopsy, however, showed high-grade diffuse lymphoplasmacytoid non-Hodgkins lymphoma. Bilateral iliac bone marrow biopsies were positive. Because of the lack of any surrounding lymphadenopathy, the tumor was considered extranodal. The patient was diagnosed with stage IVB disease, and received combination chemotherapy and pelvic radiation. She remained disease free 33 months after therapy.
Overall, during a 10-month period, five women ranging in age from 25 to 68 years were diagnosed with primary pelvic non-Hodgkins lymphoma. Four, with presumed gynecologic cancer, were referred to a gynecologic oncologist. Two, who presented with findings suggestive of cervical and vaginal cancer, were found after biopsies to have uterine and vaginal lymphoma. Two other women underwent surgery for presumed ovarian cancer and were found to have ovarian lymphoma. Finally, one woman developed a pelvic lymphoma during pregnancy. All patients received combination chemotherapy. Specific regimens are provided in Table 1
. Two patients also received radiation, and two patients underwent surgical cytoreduction. One patient died during treatment, and four patients were alive and disease free 2033 months after treatment.
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| Discussion |
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The incidence of non-Hodgkins lymphoma, especially extranodal lymphoma, has increased in recent decades. The etiology of the increase has been hypothesized to include infectious agents such as the human immunodeficiency virus (HIV) immunosuppressive therapies, environmental exposures to pesticides and pollutants, and improved diagnostic techniques. Moreover, extranodal non-Hodgkins lymphoma is characteristic of AIDS-related lymphoma. None of our five patients, however, was HIV positive.
The presentation of primary pelvic lymphoma may include findings suggestive of gynecologic malignancy. Three series of vaginal, cervical, and uterine non-Hodgkins lymphoma are presented in Table 2
.46 The most common presentations in these series were abnormal vaginal bleeding, pelvic pain, and pelvic mass. Similarly, ovarian lymphoma may mimic epithelial ovarian cancer, with common presentations including abdominal pain, abdominal distention, nausea, vomiting, and abdominal or pelvic mass.710
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In general, the prognosis for extranodal lymphoma is worse than for nodal lymphoma. In part, this may be related to substandard treatment. The treatment of non-Hodgkins lymphoma usually involves various combinations of chemotherapy with or without radiation. According to the National Cancer Database, however, only 46% of extranodal lymphoma were treated with any chemotherapy, compared to 70% of nodal lymphoma. In addition, the diagnosis of extranodal lymphoma may be inaccurate or delayed. This may be especially true for pelvic lymphoma because it often presents with findings suggestive of more common gynecologic cancers. Frequent misdiagnoses in cervical, vaginal, and uterine lymphoma include sarcoma, poorly differentiated carcinoma, and chronic inflammation.7 Frequent misdiagnoses in ovarian lymphoma include granulosa cell tumors, dysgerminoma, and metastatic cancer.5
Although primary pelvic lymphoma is rare, the disease may be encountered more frequently as the incidence of extranodal non-Hodgkins disease increases. Moreover, pelvic lymphoma may present with findings suggestive of more common gynecologic cancers. Therefore, it is important for gynecologists to be aware of this disease, and to include pelvic lymphoma in the differential diagnosis of gynecologic cancer.
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Received August 28, 2000. Received in revised form November 28, 2000. Accepted December 15, 2000.
| References |
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