Carcinome metaplasique de sein. A propos d'un cas de type sarcomatoide et revue de la literature

Metaplastic changes are a rare entity that occurs in fewer than 5% of breast carcinomas. Their sarcomatoid variant is the rarest primary malignancy of the breast. We report a case of sarcomatoid breast cancer and insist on the diagnosis and treatment of this rare tumor. case report: A 71-year-old female patient presented for a right breast mass above the nipple, between the upper inner and upper outer quadrants, of 20 mm of diameter, highly dense on mammography with cystic and solid components on ultrasound core biopsy showed a probable sarcoma whereas the partial mastectomy revealed the sarcomatoid metaplastic breast carcinoma. The workout for distant metastasis was negative and the treatment was completed by a modified radical mastectomy and adjuvant CMF chemotherapy. Six months after treatment there was no evidence of locoregional recurrence nor distant metastases. Although metaplastic carcinoma is a rare breast malignancy, with no specific clinical or radiologic features, it should be considered as an independent entity and included in the differential diagnosis of breast tumors

Is MRI effective in detecting interaarticular abnormalities of the injured knee?

Background data Magnetic resonance imaging [MRI] is widely used for the diagnosis of intraarticular anomalies of the knee. Its reliability is controversial mainly in the pediatric population, and its results may vary from one center to the other. The PURPOSE of this study was to assess the validity of MRI in detecting intraarticular abnormalities in patients who sustained an injury of their knee, by comparing its findings to those of arthroscopy. Material and methods: Two hundred and seventeen traumatic knees underwent MRI followed by arthroscopy. Findings of MRI and arthroscopy were statistically compared. Results: Accuracy of MRI was 95.39% and 99.08% for anterior and posterior cruciate ligament ruptures respectively, 85.25% and 90.78% for medial and lateral meniscal tears respectively, and 91.24% for injury of the articular cartilage. There was not a significant difference between the pediatric and the adult populations, except for a greater sensitivity to detect lateral meniscal tears and a better specificity and accuracy to identify chondral lesions in the first group. Variability between centers was significant for the diagnosis of chondral defects. Conclusion The good MRI reliability in detecting intraarticular abnormalities as demonstrated in this report, underlines its importance in the assessment of the injuried knee before arthroscopy