HighlightsAdenosquamous carcinoma is a rare colorectal tumor with both glandular and squamous histologic component.To the best of our knowledge only few cases have been reported in the literature till date.Adenosquamous carcinoma is a rare colorectal neoplasm with non-specific complaints.Its clinicopathologic behavior is not understood.Preoperative diagnosis is often difficult. Surgical resection remains the mainstay of treatment.
A role for matrix metalloproteinase polymorphisms in breast cancer development and progression was proposed, but with inconclusive results. We assessed the relation of matrix metalloproteinase-2 variants with breast cancer and related phenotypes in Tunisians. This case-control retrospective study involved 430 women with breast cancer and 498 healthy controls. Genotyping of matrix metalloproteinase-2 rs243866, rs243865, rs243864, and rs2285053 was analyzed by allelic exclusion. The minor allele frequency of rs2285053 was significantly lower in women with breast cancer cases as compared to control women; minor allele frequencies of the remaining single-nucleotide polymorphisms were similar between cases and control women. The distribution of rs243865 and rs2285053 genotypes was significantly different between breast cancer patients and control subjects. This persisted when key covariates were controlled for. None of the matrix metalloproteinase-2 variants were associated with estrogen receptor positivity, progesterone receptor positivity, or with double estrogen receptor-progesterone receptor positivity in breast cancer patients. Matrix metalloproteinase-2 rs243866, rs243865, and rs243864 were positively associated with menstrual irregularity and histological type, while rs243866 and rs2285053 were negatively associated with menarche and nodal status. In addition, rs2285053 was negatively associated with triple negativity, tumor size, distance metastasis, molecular type, and chemotherapy. Haploview analysis revealed high linkage disequilibrium between matrix metalloproteinase-2 variants. Four-locus Haploview analysis identified haplotypes GCTT and GTTC to be negatively associated with breast cancer, which remained statistically after controlling for key covariates. Matrix metalloproteinase-2 alleles and genotypes, along with four-locus haplotypes, are related to reduced susceptibility to breast cancer in Tunisian women, suggesting a protective effect.
Male breast cancer is a rare disease. In Tunisia, it represents 1% of all breast cancers and 1.6% of Male neoplasia. This work is a retrospective study about 5 male patients with breast cancer, treated in the department of medical oncology at Fattouma Bourguiba University Hospital of Monastir (Tunisia) during a period of 3 years from March 2013 to March 2016. Results showed that: invasive ductual carcinoma was the histological type found in all cases; the Her 2 neu was not overexpressed in all cases; hormone receptors were positive in all patients. Two patients had a locally advanced disease. Two patients were diagnosed with metastatic disease; pulmonary and bone metastases. Three patients who were diagnosed with no metastatic disease have had a mastectomy with Axillary lymph node dissection. Adjuvant chemotherapy was administered in two patients. Loco regional radiotherapy was performed in three patients. Tamoxifen-based hormone therapy was administered in three patients. Two patients were treated with palliative chemotherapy. One patient received two lines of chemotherapy with a global survival of 16 months, while the other received only one line of palliative chemotherapy with a global survival of 2 months. One patient received palliative hormone therapy type Tamoxifen with progression free survival of 7 months. Three patients who received curative treatments are in remission of their disease. To conclude male breast cancer is a rare disease with multiple and varied risk factors. It is similar in its clinical, histological and prognostic characteristics to breast cancer in women but also has different characteristics.
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