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Psammocarcinoma of ovary with serous cystadenofibroma of contralateral ovary: a case report



Psammocarcinoma of ovary is a rare serous neoplasm characterized by extensive formation of psammoma bodies, invasion of ovarian stroma, peritoneum or intraperitoneal viscera, and moderate cytological atypia. Extensive medlar search showed presence of only 28 cases of psammocarcinoma of ovary reported till date.

Case presentation

We herein report a case of psammocarcinoma of ovary with serous cystadenofibroma of contralateral ovary in a 55 year old Asian Indian female.


To the best of author's knowledge, ours is the rare case describing coexistence of this very rare malignant serous epithelial tumor with a benign serous cystadenofibroma of contralateral ovary.

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Psammocarcinoma of ovary is a rare serous neoplasm. Diagnosis requires the psammoma bodies to be present in at least 75% of papillae which show a destructive invasion of the ovarian stroma. The neoplastic cells do not show more than moderate atypia. There should be no areas of solid proliferation of neoplastic cells. These tumors are associated with a better prognosis than conventional serous neoplasms with low recurrence following tumor resection [1]. Literature search showed presence of only 28 cases of psammocarcinoma of ovary reported till date (Table 1) [117]. This case will be another new one in the literature with serous cystadenofibroma of contralateral ovary and elevated levels of CA-125.

Table 1 Literature review of primary ovarian psammocarcinomas

Case presentation

A 55-year-old Asian Indian female presented to gynecology clinic with complaints of menorrhagia, abdominal discomfort and pain. On Examination a mass was palpable in the lower abdomen which was non tender and fixed. Ultrasound (USG) examination revealed the presence of an abdomino-pelvic mass and ascites. Contrast-enhanced computed tomogram (CECT) revealed an abdominopelvic lobulated calcified mass measuring 17 × 15 × 16 cms (Fig 1a). Clinically, a possibility of calcified fibroid of uterus was suspected. However, cytologic examination of ascitic fluid was positive for malignant cells. On exploratory laparotomy, bilateral ovaries were enlarged with intact capsule. Total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. There were no retroperitoneal lymph nodes. No visible tumor nodules were identified on peritoneal surface. Grossly the left ovary was enlarged and measuring 24 × 20 × 20 cms. Outer surface was smooth and lobulated. Cut section was solid, grey white, gritty and granular with no visible necrosis (Fig 1b). The right ovary measured 7 × 6 × 2 cms. Cut section was solid and cystic with cysts ranging in size from 0.4 to 0.5 cm. The cysts were filled with clear fluid. No areas of hemorrhage or necrosis were seen in either of the two ovaries. Microscopically, sections from the left ovary revealed numerous psammoma bodies infiltrating the ovarian stroma and forming more than 95% of the tumor. At places these were lined by low cuboidal cells with minimal atypia (Fig 1c-f). No areas of necrosis, hemorrhage or increase mitosis were seen. Sections from the right ovary showed cysts lined by low cuboidal epithelium with prominence of fibroblastic stromal component. Thus a final diagnosis of psammocarcinoma of left ovary and serous cystadenofibroma of right ovary was made. Following the diagnosis, serum CA-125 was estimated which was elevated to 995.4 U/ml. Uterus showed a submucosal leiomyoma with proliferative endometrium on histology. Cervix and bilateral fallopian tubes were unremarkable grossly as well as microscopically. Patient received chemotherapy and kept on close follow up.

Figure 1
figure 1

Computed tomography scan shows calcified abdominopelvic mass (a); gross photograph shows gritty and firm tumor (b); on histological examination, tumor reveals extensive psammoma bodies which are surrounded by single layer of cytologically bland cuboidal or low columnar epithelium (c-f) H&E cx40; dx100; ex400; fx600.


Psammocarcinoma of ovary is a rare serous neoplasm which can arise from both peritoneum and ovaries [1]. Extensive search showed presence of only 28 cases of psammocarcinoma of ovary reported till date [117] (Table 1). Age ranged from 18 to 76 years [1, 2]. Many of these cases presented with abdominal discomfort and increasing abdominal girth.

This tumor can be misdiagnosed as other calcifying tumors of abdomino-pelvic region especially calcified leiomyomas, by radiological investigations, similar to our case. However if calcified abdomino-pelvic tumors are seen in association with an elevated CA-125 level, then a diagnosis of ovarian neoplasm can be made [7]. In most of the reported cases CA-125 levels were raised ranging from 65-25,000 units/ml [7, 8]. Our patient had elevated levels of CA-125 just after the surgery.

Although most of the cases reported are unilateral, rarely these are bilateral [8, 13].

All but one, cases reported in the literature had FIGO stage III tumors showing clinical behavior similar to that of borderline serous tumors [3]. Our case fits in to stage I C as patient had malignant ascitis, however no pelvic extension was seen.

Despite the apparent low malignant potential of this tumor, there remains a need for patient's follow up data as aggressive behavior has been described in the literature [12, 15, 16]. In the case reported by Poggi et al [5] no adjuvant therapy was given because of the supposed indolent behavior. However, recurrence of disease has been noted after eighteen months. Our patient received post operative adjuvant therapy and is on follow up.

Histopathologic differential diagnosis of psammocarcinoma involves other serous epithelial tumors. Some rare cystadenofibromas have mild cytologic atypia and may also exhibit psammoma bodies, but they are generally inconspicuous. In the present case we have seen cystadenofibroma in the contralateral ovary with an occasional psammoma body formation. Earlier, association of psammocarcinoma with cystadenofibroma has been documented [5, 8]. Although these tumors show clinical behavior similar to that of borderline serous tumors, the presence of destructive stromal invasion excludes serous borderline tumors. Moderate cytologic atypia helps differentiating from high grade serous carcinomas. Psammocarcinomas differ from well-differentiated serous adenocarcinomas by numerous psammoma body formations.

Potential mechanisms responsible for the characteristic, extensive psammoma body formation include the accumulation of successive layers of calcium on single necrotic or degenerated tumor cells. One hypothesis states that they arise due to accumulation of hydroxyapatite in degenerating cells [18]. Psammoma bodies are described as multiple, discrete, laminated calcified bodies and are found in many neoplastic and non neoplastic lesions. Characteristic calcifications on radiological investigations and psammoma bodies on cervicovaginal smears should alert the clinician for this unusual tumor. Recently Pusiol et al [13] have reported a case of psammocarcinoma associated with presence of psammoma bodies in the cervicovaginal smears.

The molecular features of psammocarcinoma include mutations of a gene belong to the cancer related RAF family, that is BRAF [19].

Hiromura et al [11] described imaging features of psammocarcinoma including extensive minute calcifications on CT scan that were not detected on the abdominal x-ray. The tumor appears sandy and coarsely granular on enhanced T1-weighted MR images due to scattered clusters of psammomatous calcifications. Radin et al [9] have shown its high avidity for the Tc-99m MDP radiopharmaceutical.

Like with other serous epithelial tumors of the ovary, aggressive debulking surgery has been the initial treatment modality in nearly all cases. Postoperative therapies have included observation, tamoxifen and cytotoxic chemotherapy (generally using cyclophosphamide with cisplatin or carboplatin) [4].


Psammocarcinomas are rare serous neoplasms. Due to the rare aggressive nature of the tumor, it is important to follow up the patient closely. Our case adds a new case of psammocarcinoma with contralateral cysadenofibroma in the literature.


Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.


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Correspondence to Deepali Jain.

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Authors' contributions

DJ, NK, VK, PA participated in conception of the idea, writing of the manuscript, and interpretation of histological assays. LA collected data. DJ participated in interpretation of biopsies, review of the literature, and writing of the manuscript.

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Jain, D., Akhila, L., Kawatra, V. et al. Psammocarcinoma of ovary with serous cystadenofibroma of contralateral ovary: a case report. J Med Case Reports 3, 9330 (2009).

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