Clinical effectiveness of microporous polysaccharide hemospheres in mastectomy for patients with breast cancer.

Background: Microporous polysaccharide hemospheres (MPH) are hydrophilic particles administered to reduce the incidence of seroma after mastectomy, but their clinical effectiveness remains controversial. Because a previous randomized, controlled study in a small cohort could not demonstrate the effectiveness of MPH in breast surgery, we evaluated their effectiveness in surgery for breast cancer in a larger cohort.

Methods: Medical records of 352 patients who underwent total mastectomy for breast cancer were retrospectively reviewed.

Metastasis of breast cancer to the right kidney with a tumor thrombus in the inferior vena cava: a case report.

Background: It is quite rare for breast cancer to metastasize to the kidney with a tumor thrombus in the inferior vena cava.

Case Presentation: A Japanese woman in her forties was diagnosed with cancer of the left breast and underwent left mastectomy with sentinel lymph node biopsy. The final pathological diagnosis was pT1aN0M0, stage IA (ER positive, PgR positive, HER2 negative).

Accessory breast cancer in the inframammary region: a case report and review of the literature.

Background: Although a few cases of accessory breast cancer (ABC) have been reported, most were in the axillary region. We encountered an extremely rare case of ABC in the inframammary region (IMR).

Case Presentation: The patient was a 68-year-old postmenopausal woman who had noticed a congenital accessory nipple in her left IMR with slight, occasional discharge 20 years ago.

Surgical Resection With Pedicled Rotation Flap for Post-mastectomy Locoregional Breast Cancer Recurrence.

Background/aim: Locoregional recurrence (LRR) of breast cancer is reported to occur at a rate of 5%-15%. Wide excision of LRR is the recommended treatment, which can increase the probability of subsequent local control. Herein, we describe a surgical technique wherein a pedicled skin and subcutaneous flap close the skin defect after resection of a breast cancer LRR without use of a skin graft.

The usefulness and utilization of a detachable steel wire-rimmed retractor (KN retractor) for endoscopic thyroid and parathyroid surgery.

Purpose: In endoscopic surgery, surgeons occasionally encounter difficulties due to visual field obstruction by muscles or blood vessels. In these situations, specialized instruments that can effectively retract these obstructions are required. Recently, we developed a new detachable wire-rimmed retractor (KN retractor) for narrow-space surgery.

Breast cancer with an intraductal component that was proven genetically to be metastasis of contralateral breast cancer: a case report.

Background: When diagnosing patients with bilateral breast cancer, it is challenging to determine the relationship between multiple breast cancer lesions at the individual patient level with certainty.

Case Presentation: A 35-year-old Japanese woman was diagnosed with a left breast cancer. She was previously diagnosed with right pT3N3M0 stage IIIC breast cancer and underwent chemotherapy with targeted therapy, radiotherapy, and endocrine therapy as adjuvant treatment after mastectomy and axillary lymph node dissection.

Clinical Features of Breast Cancer Patients with Human T-Cell Lymphotropic Virus Type-1 Infection.

Background: Human T-cell lymphotropic virus type 1 (HTLV-1) is a retrovirus that causes adult T-cell leukemia/lymphoma (ATL), an aggressive form of T-cell malignancy. The relationship between HTLV-1 infection and cancer progression is controversial. HTLV-1 encodes oncogenic protein TAX1 and it is hypothesized that HTLV-1 infection is associated with breast cancer progression.