Secretory carcinoma of breast in a 17-year-old male
© Kavalakat et al 2004
Received: 13 July 2003
Accepted: 02 June 2004
Published: 02 June 2004
Secretory carcinoma of the male breast (juvenile carcinoma) is a rare neoplasm. Only a few cases have been reported in the literature.
We report here a case in a 17-year old male presenting with recurrent breast swelling.
Though considered an indolent neoplasm, secretory carcinoma does metastasise to lymph nodes and recur after local excision. Surgery in form of mastectomy with axillary clearance is the treatment of choice.
Male breast carcinoma is a relatively rare neoplasm accounting for less than 1% of all breast cancers . It is a disease of the elderly, with a peak incidence around 60 years of age . Majority of the cases are infiltrating duct carcinomas (70%–95%) . It is extremely rare in boys and young adults. At our centre, 5 cases of carcinoma of the male breast were treated out of a total of 594 breast cancers, during the period 1997 - 2002. One of these was a rare form of breast carcinoma in a 17-year-old boy, which forms the basis of this report.
Secretory carcinoma is a rare variant of breast carcinoma with a relatively good prognosis. Most of the patients are females and it is very rare in males . A review of literature revealed only 15 cases of secretory breast carcinoma in males and this is the first reported case from India [3–18].
A 17-Year-old male presented with a swelling over the right breast. He had underwent excision of a lump at a peripheral hospital two years ago for a swelling in the subareolar region of the right breast with a fine needle aspiration cytology (FNAC) report of benign epithelial proliferative lesion. Histopathological report of the lumpectomy specimen was invasive lobular carcinoma following which he was referred to an oncologist and mastectomy was advised. Instead, he took herbal medicines. He developed recurrence on the same site within six months. He reported to the oncologist and chemotherapy using cyclophosphamide, methotrexate and 5 fluorouracil (CMF-regimen) was initiated. He was irregular and discontinued the treatment in between.
Examination of the mastectomy specimen showed a circumscribed neoplasm measuring 6 × 3.5 cm, involving the overlying nipple. Cut section of the growth showed whitish appearance. The axillary pad of fat showed twelve lymph nodes largest measuring 2 cm. Cut section of most of the lymph nodes showed whitish appearance.
Of the twelve axillary lymph nodes dissected, ten showed metastatic deposits. The tumour was oestrogen receptor negative and the progesterone receptor status was not studied. As the specimen blocks of first surgery could not be retrieved no comments regarding the status of margins of first surgery could be made.
He received postoperative radiotherapy and was started on 10 mg twice daily tamoxifen. He is asymptomatic with no evidence of recurrence or metastasis 13 months after mastectomy.
Secretory carcinoma of the breast is a rare entity, most commonly seen in females and its occurrence in male is even rarer with only 15 cases reported in the world literature [3–18]. Secretory carcinoma though known previously as juvenile breast carcinoma  has been reported in all age groups. In the mix series of Tavassoli and Norris the median age at diagnosis was 25 years . In the recent review of data of 15 male patients by de Bree et al, the median age was 17 years . Secretory carcinoma seems to occur at a younger age in males than females .
Characteristically the tumour presents as a circumscribed and mobile mass in the subareolar location. Most characteristic histological feature is the presence of abundant intra and extra cellular secretory material and tumour cells with vacuolated or granular eosinophilic cytoplasm . Intracytoplasmic lumen is seen frequently (figure 3). The secretory material is PAS positive and diastase resistant.
Fine needle aspiration cytology (FNAC) shows presence of prominent intracytoplasmic vacuolisation . Vesoulis and Kashkari reported that cytological features of secretory breast carcinoma resemble that of benign epithelial proliferative lesions; particularly lactational changes or lactating adenoma  and this could be the reason for missing the diagnosis on FNAC in the present case.
The prognosis for secretory carcinoma is favourable when compared with ductal carcinoma. Tavassoli and Norris suggested three features of secretory carcinoma that indicate a favourable prognosis: (1) tumour size less than 2 cm, (2) age of less than 20 years at diagnosis and (3) tumour with circumscribed margins .
Case reports of local recurrence following local excision suggest that local excision alone may not be adequate and many have advocated mastectomy [4, 5, 7, 19]. Lymph node metastasis is observed in approximately 20–30% of the recorded cases [4, 20]. It is rare in females with tumour <2 cm . It has been suggested by de Bree et al, that in males nodal metastasis might occur more frequently in smaller tumours . Therefore mastectomy with axillary lymph node dissection or sentinel lymph node biopsy is recommended in males .
Distant metastases from secretory carcinoma are extremely rare with only four cases reported [7, 21]. Metastasis has been reported even after 20 years of surgery. In males, recurrence has been reported in only one case . Herz et al, has reported non-responsiveness of the tumour to chemotherapy . Even though adjuvant therapy has been administered in many cases there is no evidence to support any form of therapy . In our case, tumour size of 6 cm and presence of metastasis in 10 axillary nodes suggests a relatively poor prognosis. However secretory carcinoma being an indolent tumour, a long-term follow-up is required to derive definite conclusions.
Written consent was obtained from the patient for publication of the patient's details.
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