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Rhabdomyosarcoma of the breast: Report of a rare malignancy.

ABSTRACT: Rhabdomyosarcoma (RMS) is an uncommon type of soft-tissue malignancy which mainly influences children. RMS rarely occurs in breast and little of the clinical behavior and treatment strategies were reported. Here, we describe a case of adult female patient with breast RMS. A 34-years-old Chinese woman visited to our hospital complaining palpable mass in her left breast. Seven months ago, the patient was diagnosed as lymphocytic mastitis and received surgical excision in the left breast. Five months later, she noticed a palpable mass again in the left breast. Ultrasonography suspected a malignant lesion and a diagnosis of RMS was made after segmental mastectomy and immunohistochemical staining. Therapy consisted of mastectomy and following neoadjuvant chemotherapy. The patient has remained disease free 30 months post-operatively. We should consider RMS when we see a breast mass. Tissue biopsy and immunohistochemical staining are recommended for diagnosis of RMS in young women. Oncologists should take immediate and active treatment on RMS.

SUBMITTER: Yuan Y

PROVIDER: S-EPMC5663407 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Rhabdomyosarcoma of the breast: Report of a rare malignancy.

Yuan Yufen Y Hou Junna J Pan Yunbao Y

Cancer biology & therapy 20170901 9

Rhabdomyosarcoma (RMS) is an uncommon type of soft-tissue malignancy which mainly influences children. RMS rarely occurs in breast and little of the clinical behavior and treatment strategies were reported. Here, we describe a case of adult female patient with breast RMS. A 34-years-old Chinese woman visited to our hospital complaining palpable mass in her left breast. Seven months ago, the patient was diagnosed as lymphocytic mastitis and received surgical excision in the left breast. Five mont ...[more]

PMID: 28795902

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Project description:BackgroundPhyllodes tumours (PTs) are fibroepithelial breast tumours, which can be classified as benign, borderline or malignant, according to their histological characteristics. While various huge borderline or malignant PTs have been previously described, a benign PT with a pulmonary nodule mimicking malignancy has not yet been reported. In order that doctors may have a comprehensive understanding of super-giant benign PTs (≥ 20 cm), we also performed a literature review to summarize the clinical features, differential diagnosis, and treatment of this disease.Case summaryA 42-year-old woman with severe anaemia presented with a rapidly enlarging right breast mass, measuring approximately 30 cm × 25 cm × 20 cm that was first noticed 1 year previously. A region of skin ulceration and necrosis (20 cm × 15 cm) was observed on the lateral side of the mass. Computed tomography (CT) of the chest revealed a pulmonary nodule, which initially suggested a diagnosis of metastasis. CT showed that the boundaries between the pectoralis major and the mass were blurred, which was presumed to be due to tumour invasion. However, two core needle biopsies of the mass showed no evidence of malignancy. Following these results, the tumour was removed by mastectomy of the right breast. Interestingly, postoperative pathology finally proved the diagnosis of a benign PT. After 1 year of follow-up, wedge resection of the small pulmonary nodule was performed, and it was confirmed that the lung nodule was actually adenocarcinoma rather than metastatic breast cancer. The patient recovered very well without any postoperative treatment.ConclusionThis case is unique in that the giant breast mass initially mimicking a malignant clinical presentation was eventually pathologically confirmed to be a benign PT, which misled the diagnosis and complemented the atypical features of benign PTs. The pathological and immunohistochemical results were important in the differential diagnosis. In addition, total mastectomy should be recommended due to difficulty in the precise diagnosis of PTs, especially in large breast masses. In the literature, almost one-half of super-giant benign cases were thought to be malignant tumours before surgery. This finding is a reminder to consider all conditions in order to make an accurate diagnosis and avoid excessive treatment.

Dataset Information

Rhabdomyosarcoma of the breast: Report of a rare malignancy.

Publications

Rhabdomyosarcoma of the breast: Report of a rare malignancy.

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