Comparison of neck angle and musculoskeletal discomfort of surgeon in cataract surgery between three-dimensional heads-up display system and conventional microscope.

The three-dimensional heads-up display system (3D HUDS) is increasingly utilized by ophthalmologists and suggested to offer ergonomic benefits compared to conventional operating microscopes. We aimed to quantitatively assess the surgeon's neck angle and musculoskeletal discomfort during cataract surgery using commercially available 3D HUDS and conventional microscope. In this single-center comparative observational study, the surgeon conducted routine phacoemulsification surgeries using Artevo® 800 and Opmi Lumera® 700 (both from Carl Zeiss Meditec, Jena, Germany).

Effect of menstrual cycle and menopausal status on apparent diffusion coefficient values and detectability of invasive ductal carcinoma on diffusion-weighted MRI.

The purpose of this study was to determine whether the apparent diffusion coefficient (ADC) and tumor detectability based on diffusion-weighted imaging (DWI) are affected by the menstrual cycle or menopausal status in breast cancer patients. Institutional review board approval was obtained, and the requirement for informed consent was waived. A total of 124 women with invasive ductal carcinoma not otherwise specified (IDC NOS) who underwent breast MRI with DWI were included in this study.

Breast US in patients with breast cancer presenting as only microcalcifications on mammography: can US differentiate ductal carcinoma in situ from invasive cancer?

Purpose: To retrospectively review sonographic findings of breast cancers presenting as only microcalcifications on mammography and to evaluate factors essential for differentiating ductal carcinoma in situ (DCIS) from invasive cancers.

Methods: We retrospectively reviewed the medical records of 620 consecutive patients with confirmed breast cancer according to surgery performed between March 2008 and October 2011 at our institution. Of these, 53 lesions from 52 patients who had only microcalcifications without a mass or other associated findings on mammography were selected.

Ultrasonographic hyperechoic lesions of the breast: are they always benign?

Background: Most of the breast lesions show hypoechogenicity relative to fat on ultrasonography. The frequency and malignancy rate of hyperechoic lesions are not investigated in a large series.

Purpose: To evaluate the frequency and malignancy rate of hyperechoic lesions on breast sonography and to investigate sonographic characteristics that may predict malignancy in hyperechoic breast lesions.

Stromal fibrosis of the breast: outcome analysis.

Background: Stromal fibrosis in the breast is a non-specific benign pathologic entity with wide spectrum of imaging finding. The false-negative rates (number of cancers missed) previously reported have limited value because short follow-up period and small number of populations.

Purpose: To describe the mammographic and sonographic findings of stromal fibrosis of the breast diagnosed by imaging-guided biopsy and to determine the false-negative rate at percutaneous biopsy.

US-guided transthoracic biopsy of peripheral lung lesions: pleural contact length influences diagnostic yield.

Background: Transthoracic biopsy of peripheral lung lesions under ultrasonography (US) guidance is a useful diagnostic technique. However, factors affecting diagnostic yield of US-guided transthoracic biopsy of peripheral lung lesions are not well established.

Purpose: To determine the factors that influence diagnostic yield of US-guided transthoracic biopsy in peripheral lung lesions.

Periductal mastitis mimicking breast cancer in a male breast.

Periductal mastitis in a male patient rarely has been reported in the English literature. Herein, we now present a rare case of periductal mastitis mimicking breast cancer, both clinically and radiologically, in a 37-year-old man. Mammogram and sonogram showed a mass with irregular shape, spiculated margin and a nipple retraction, mimicking a male breast cancer.

Peripheral pulmonary arterial pseudoaneurysms: therapeutic implications of endovascular treatment and angiographic classifications.

Purpose: To classify peripheral pulmonary arterial pseudoaneurysms (PAPs) associated with infectious lung diseases according to angiographic findings and to determine treatment options for PAPs on the basis of angiographic classifications.

Materials And Methods: The institutional review board approved this study. A total of 24 patients with massive hemoptysis had PAPs that were detected at pulmonary computed tomographic (CT) angiography; underlying diseases were pulmonary tuberculosis (n = 16), a fungus ball (n = 5), lung abscess (n = 2), and pneumonia (n = 1).