Ogawa T

Ovarian clear cell carcinoma (CCC) is a distinct histological subtype of epithelial ovarian cancer characterized by unique biological behavior and heterogeneous clinicopathological features. In contrast with other epithelial ovarian maligna…

PurposeUrachal cyst is a type of congenital anomaly that may undergo malignant transformation. Partial cystectomy with en-bloc resection of the urachus is appropriate treatment for urachal remnants. We performed near infrared ray-guided sur…

Magnetic resonance imaging (MRI) findings in two cases of ovarian clear cell carcinoma (CCC) revealed solid masses with extensive central necrosis. At the interface between the necrotic and viable solid components in the central portion of …

The fibrosis mechanism in endometriosis is not elucidated. We investigated the role of eosinophil in fibrosis of endometriosis. The endometriotic stromal cells (ESCs) and endometrial epithelial cells (EECs) were subjected to in vitro experi…

The MR images of the two cases of ovarian clear cell carcinomas (CCCs), presenting as entirely solid-masses, revealed a band-like peripheral area and a geographic central area: The peripheral area images resembled those of the renal cortex,…

PurposeTo retrospectively evaluate the diagnostic potential of magnetic resonance imaging (MRI)-based features and radiomics analysis (RA)-based features for discriminating ovarian clear cell carcinoma (CCC) from endometrioid carcinoma (EC)…

Despite widespread cervical cancer (CC) screening programs, low participation has led to high morbidity and mortality rates, especially in developing countries. Because early-stage CC often has no symptoms, a non-invasive and convenient dia…

Spontaneous hemoperitoneum is a rare and potentially life-threatening condition with a wide differential diagnosis. Gastrointestinal stromal tumors (GIST) can present with spontaneous hemoperitoneum, although diagnosing GIST as the cause of…

INTRODUCTION: Uterine adenomyosis is a benign disorder in which endometrial glands and stroma are present within the myometrium. There have been several case reports of cerebral infarction associated with adenomyosis, but their clinical cha…

BackgroundThe accurate diagnosis of biliary strictures remains problematic. The aim of the present study was to prospectively evaluate the clinical utility of probe-based confocal laser endomicroscopy (pCLE) under the direct view of peroral…

Müllerian duct anomalies (MDAs) are the result of incomplete development, vertical or lateral fusion, or absorption of the müllerian ducts. The range of anomalies includes uterovaginal agenesis or hypoplasia, unicornuate uterus, uterus dide…

•We present an unusual case of umbilical endometriosis and huge uterine leiomyomas with marked hydropic and cystic degeneration.•Although umbilical tumors are uncommon, the differential diagnosis should include umbilical endometriosis, part…