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Endoscopic breast surgery for patients with breast cancer was introduced for its superior cosmetic outcomes; it was initially studied in the field of breast-conserving surgery and, more recently, in robotic-assisted nipple-sparing mastectomy (NSM). The main purpose of this study was to investigate the feasibility and safety of endoscopic NSM (E-NSM) in patients with breast cancer by comparing E-NSM and conventional NSM (C-NSM).

Between May 2017 and October 2020, we retrieved the records of 45 patients who underwent NSM with permanent silicone implants and divided them into the E-NSM group (20 patients) and the C-NSM group (25 patients), depending on the use of the endoscopic device. We also analyzed demographic information, pathology, operative time, and complications.

No significant differences were observed between the 2 groups based on demographic information, postoperative pathological data, mean length of hospital stay, and total number of complications. The mean preparation time for surgery was comparable between both groups. Compared to the C-NSM group, the E-NSM group had a significantly longer mean operative time and, subsequently, a significantly longer mean total operative time and number of complications.

The results showed that E-NSM was feasible and safe with a more inconspicuous incision in patients with breast cancer.

The results showed that E-NSM was feasible and safe with a more inconspicuous incision in patients with breast cancer.

Nipple-sparing mastectomy (NSM) includes various techniques, including conventional or endoscopic mastectomies. Since the introduction of robot-assisted NSM (RANSM) in 2015, 2 main methods have been used gasless and gas-inflated techniques. The aim of this study was to compare clinicopathologic characteristics, surgical outcomes, and postoperative complications between patients treated with gasless RANSM and those treated with gas-inflated RANSM.

We conducted a retrospective study of women who underwent gasless or gas-inflated RANSM with immediate breast reconstruction between November 2016 and May 2019. The indications for RANSM were early breast cancer, interstitial mastopathy, or

1/2 mutation carriers. Clinicopathologic characteristics, surgical outcomes, and postoperative complications were analyzed. The severity of complications was graded using the Clavien-Dindo system.

A total of 58 RANSM procedures were performed in 46 women 15 cases of gasless RANSM and 43 cases of gas-inflated RANSM. The prolowed by immediate reconstruction.

In this study, there were no significant differences in surgical outcomes or postoperative complications between gasless and gas-inflated RANSM, except for a longer incision with the gasless technique. Both techniques are reasonable options for RANSM followed by immediate reconstruction.Breast cancer is the most common malignancy in Korean women, and its incidence continues to increase. The Korean Breast Cancer Society (KBCS) established a nationwide breast cancer database through its online enrollment program in 1996. This study aimed to analyze the clinical characteristics of breast cancer in Korea, and to assess the pattern of changes in breast cancer management in 2018. We analyzed the KBCS and Korea Central Cancer Registry (KCCR) databases in 2018. In 2018, 28,157 patients were newly diagnosed with breast cancer, of whom 4,510 had noninvasive breast cancer and 23,647 had invasive breast cancer. The age-standardized rate of breast cancer in 2018 was 79.0 per 100,000 women (65.6 invasive, 13.4 noninvasive). The median age of female patients diagnosed with breast cancer in 2018 was 52 years, and the incidence of breast cancer was the highest in the 40-49-years age group (9,432 patients, 33.6%). Selection Antibiotics for Transfected Cell inhibitor The proportion of patients with stage 0 and stage I breast cancer continued to increase, accounting for 63.8% of cases, and breast-conserving surgery was performed more often than mastectomy (66.2% vs. 33.0%). The most common subtypes of breast cancer were hormone receptor [HR]-positive and human epidermal growth factor receptor-2 (HER2)-negative types (65.9% of cases), while the HR-negative and HER2-positive types accounted for 9.2% of cases. According to the KCCR data, from 2014 to 2018, the 5-year relative survival rate of patients with breast cancer was 93.3%, which was 14.0% higher than that from 1993 to 1995 (79.3%). The clinical characteristics of breast cancer in Korea have been changing, and national databases can improve our understanding of the disease characteristics of Korean women. Therefore, updating the KBCS registry is important for the effective management of breast cancer in Korea.We report 2 cases of arrested pneumatization of the sphenoid sinus, a normal variant commonly misdiagnosed as a serious condition of the skull base. A 65-year-old man visited a local clinic for regular checkups. Brain CT showed a non-expansile lesion of the soft tissue with a well-defined sclerotic margin in the clivus but without destruction or mass effect on the surrounding bony structures. Subsequent brain MRI revealed that the lesion within the clivus was a high-signal lesion on the T2-weighted image, containing a low-signal round mass seen on a high-intensity signal on the T1-weighted image without contrast enhancement. Thus, the lesion was considered to contain internal fat. A 70-year-old woman diagnosed with a tumor in the greater sphenoid bone visited our hospital. Her brain CT revealed a non-expansile lesion of mixed density and a well-demarcated lesion and internal curvilinear calcification in the left greater wing of the sphenoid bone. The margin was osteosclerotic and the adjacent bony structure was intact. Her brain MRI showed that the lesion within the greater sphenoid bone had multiple low-signal lesions within a high-signal lesion on the T2-weighted image, suggesting internal fat contents. The lesions were diagnosed as arrested pneumatization of the sphenoid sinus and no further examination or treatment was performed. Arrested pneumatization of the sphenoid sinus should be considered in the presence of non-expansile lesion with an osteosclerotic boundary and internal fat component in the skull base.