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Contemporary Oncology/Współczesna Onkologia
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Case report

Intramammary lymph node metastasis in a patient with ovarian carcinoma and a brief review of the literature

Lutfiye Demir
,
Cigdem Erten
,
Seyran Ceri Yigit
,
Alper Can
,
Ahmet Dirican
,
Vedat Bayoglu
,
Yuksel Kucukzeybek
,
Isil Somali
,
M Oktay Tarhan

Wspolczesna Onkol 2012; 16 (2): 108–110
Online publish date: 2012/05/29
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- Intramammary.doc.pdf  [0.24 MB]
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Introduction

Ovarian cancer is the most common cause of death among women with gynecologic malignancies and the fifth leading cause of cancer death in women in the United States [1]. Approximately 21 550 new cases and 14 600 deaths are estimated annually in the US [1]. There are, however, large variations in the incidence of ovarian cancer in different areas of the world. The highest incidence areas are in Europe (especially Austria, Germany and the United Kingdom) and North America [2-4]. The estimated number of newly diagnosed cases in the European Union was 42 700 in 2004 with a mortality of 12/100 000 women/year. Metastasis of ovarian serous carcinoma to the breast and axillary lymph nodes is very rare and usually occurs very late in the course of the disease [5, 6]. Therefore, metastatic cancer to the breast from an ovarian primary is associated with shortened survival, most of the patients dying a few months after the metastasis. Karam et al. [7] reported a retrospective analysis of 29 patients with epithelial ovarian cancer and breast/axillary mass from 1990 to 2007. Ten of them were metastatic to breast, and 19 patients had secondary primary carcinoma of the breast. The mean disease-free survival (DFS) was 14.9 versus 77.4 months for patients with epithelial ovarian cancer metastatic to breast and for patients with secondary primary breast cancer respectively. Thus, it is important to distinguish primary breast cancer from ovarian cancer metastasis.

Case report

A 52-year-old woman with complaints of inguinal tenderness and increased abdominal size for three months was admitted to our hospital, Izmir Ataturk Training and Research Hospital, Department of Gynecology, in September 2006. An irregular, fixed pelvic mass and ascites were detected in her physical and pelvic examination. She underwent an abdominal ultrasound examination, abdominopelvic computerized tomography (CT), and a plain chest radiography. These imaging studies demonstrated ascites, bilateral adnexal masses, and a right-sided minimal pleural effusion. Serum CA125 level was elevated (4550 U/ml). After preoperative evaluation, the patient underwent laparotomy and an optimal cytoreduction procedure with total abdominal hysterectomy, bilateral salpingo-oophorectomy, omentectomy, and lymphadenectomy. An 8 cm diameter tumor on the right ovary and a 10 cm tumor on the left ovary and 2 liters of ascites were detected. Peritoneal washing cytology was malignant. The frozen and final pathology was compatible with well differentiated, malignant serous carcinoma (Fig. 1), with invasion of the omentum, peritoneum, and uterine wall (stage IIIC). Postoperative CA125 level was 2177 U/ml. Immediate postoperative CT scan showed a solid 4-5 sized mass in the right inguinal region, and multiple millimetric lymph nodes.

She received a combination therapy of carboplatin (AUC = 6, d1 of a 21-day cycle) and paclitaxel (175 mg/m2, on day 1 of a 21-day cycle) which was initiated in December 2006. After 6 chemotherapy cycles, in April 2007, serum CA 125 level was 860 U/ml without any radiological improvement. Then she was treated with a combination therapy of liposomal doxorubicin (30 mg/m2, on day 1 of a 21-day cycle) and gemcitabine (1000 mg/m2, on days 1 and 8 of a 21-day cycle). The treatment was continued for 14 courses with a remarkable CA-125 response. The chemotherapy was completed in July 2008 and serum CA125 level was 95.5 U/ml at that time. The solid size of the solid mass in the right inguinal region was same, but lymph nodes were not seen in the follow-up CT of the abdomen/pelvis. Surgery was not planned because it was considered as a postoperative benign lesion by her gynecologist. Five months later, in the thorax CT, a 2 cm-sized lymph node in right axillary fossa was seen. The mammography showed a 9 mm sized opacity without malignant features in the right breast. During the follow-up, in January 2009, the serum CA125 level increased to 302 U/ml. For that reason, oral etoposide (100 mg/day, 14/28 day) was started. After 6 cycles, the CA125 level increased to 914 U/ml and the axillary lymph node and intramammary lesion showed progression. Surgical biopsy of the intramammary lymph node was compatible with metastasis of ovarian serous carcinoma (Fig. 2). The immunoperoxidase study for WT-1 was positive (Fig. 3). Following this diagnosis, a combination of carboplatin (AUC = 6, on day 1 of a 21-day cycle) and cyclophosphamide (750 mg/m2, on day 1 of a 21-day cycle) was started in December 2009. After 6 cycles, the number and size of axillary and intramammary lymph nodes increased and newly appearing intra-abdominal lymph nodes were seen in the CT scan. After then, the patient was treated with topotecan (4 mg/m2, weekly), however she progressed after 4 months, and paclitaxel (80 mg/m2, weekly) was treated with. She has been still treated by weekly paclitaxel for 4 months and has a stable radiological and clinical response.

Discussion

Ovarian carcinoma is the second most common gynecologic malignancy. Approximately 21 550 women in the United States are diagnosed with ovarian cancer annually, and an estimated 15 520 women die of the disease [1]. Papillary serous histology accounts for as many as 75% of them [8]. Metastasis of ovarian serous carcinoma to the breast and axillary lymph nodes is very rare [5, 6]. Only a few cases have been reported in the literature so far. Moreira et al. [9] reported a 29-year-old woman who presented with an intramammary lymph node metastasis of a borderline papillary ovarian tumor which had been resected a year before diagnosis. Recine et al. [5] reported a series of 14 cases of ovarian serous carcinoma which had metastases to breast and axillary lymph nodes. One of them was stage I at the initial diagnosis while 10 of them were stage III and 3 of them were stage IV at the time of the diagnosis. Only one patient had stage IV disease initially with both axillary lymph node metastasis and breast lesion. The breast and/or axillary lymph node metastases were discovered at an average of 30 months after presentation (in patients with stage III). Another three case were reported by Micha et al. [10] in 2006. All of them had stage III disease and presented with a mass in the breast. One of the cases presented an inflammatory pattern.

Metastatic cancer to the breast from an ovarian primary is associated with a poor prognosis, with a majority of patients dying within one year [6, 11]. Kayikcioglu et al. [12] presented the case of a patient that was initially stage IIC epithelial ovarian cancer. After two years, she presented with bilateral metastatic breast disease derived from the primary ovarian cancer. Although she was heavily treated, she died 18 months after diagnosis.

Differentiation between metastatic and primary tumors of the breast is of great importance because treatment and prognosis differ significantly. Clinical history, the presence of papillary architecture, and immunohistochemical features are important in establishing the correct diagnosis. WT-1, the Wilms tumor gene product, can be expressed in some types of ovarian tumors, other solid tumors (such as stomach, prostate, biliary and urinary system tumors, malignant melanoma) and leukemias. Most of the studies showed that serous carcinomas are usually positive and endometrioid ovarian cancers are usually negative for this marker [13] Yamamoto et al. [14] analyzed WT-1 immunoreactivity in 119 patients with ovarian serous cancer and showed that WT-1 positivity is positively correlated with high grade, advanced stage and higher Ki-67 labeling index, higher bcl-2 expression and poorer outcome in a study. Although WT-1 positivity can be seen in many solid tumors, it has been identified as a possible marker mostly for ovarian cancer. A study of 117 patients involving primary breast cancer, breast cancer metastatic to ovary, and primary ovarian cancer showed that 76% of primary ovarian cancer patients were positive for WT-1, but none of the patients with breast cancer showed WT-1 positivity [15]. Gross cystic disease fluid protein (GCDFP-15) and mammaglobin are both widely used and accepted markers for epithelia of breast origin. Cytoplasmic expression of GCDFP-15 and mammaglobin was observed in respectively 73.3% and 72.1% of invasive breast carcinomas in a study [16]. These two markers were studied in paraffin-embedded tissues of the patients with primary breast cancer, serous carcinoma (ovarian and uterine), and metastatic breast cancer to the ovary. Mammaglobin was negative in all serous carcinomas, while it was more frequently and diffusely expressed in breast carcinomas when compared to GCDFP-15 (14/21 patients vs. 8/21 patients for GCDFP-15) [17]. Chia et al. compared the diagnostic utility of these two markers in confirming a breast origin for recurrent tumors in a recent study; they demonstrated that metastases to the breast from other organs and metastatic lesions from non-breast primaries were uniformly negative for both mammaglobin and GCDFP-15, and also mammaglobin was superior to GCDFP-15 in detecting a tumor of breast origin [18]. As a result, in addition to papillary morphology, metastatic breast lesions from ovarian serous tumor origin are usually negative for GCDFP-15 and mammaglobin and positive for WT-1. We established the diagnosis of metastasis from ovarian cancer by using WT-1 immunoreactivity and typical papillary architecture of serous cancer cells in this case.

The present patient had a primary ovarian carcinoma and had been heavily treated with multiple chemotherapy regimens. She developed an intramammary and axillary lymph node metastasis 25 months after diagnosis. Serous carcinoma cells and WT-1 positivity confirmed metastasis of ovarian cancer. The patient has been receiving a sixth-line chemotherapy protocol and she is still alive 29 months after intramammary lymph node metastasis was detected. Although she has an advanced disease, she has no visceral organ metastasis and she has in total a 56-month survival time since diagnosis. This shows that survival could differ from the other patients discussed above. Therefore each patient should be managed individually.

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Address for correspondence



Dr. Lutfiye Demir


Izmir Ataturk Training and Research Hospital

Clinic of Medical Oncology

tel. +90 232 244 44 44/ 2923

tel./fax +90 232 243 44 43

e-mail: demir.lutfiye77@gmail.com



Submitted: 8.07.2011

Accepted: 13.11.2011
Copyright: © 2012 Termedia Sp. z o. o. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
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