Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star.

Direct imaging of gas giant exoplanets provides information on their atmospheres and the architectures of planetary systems. However, few planets have been detected in blind surveys with direct imaging. Using astrometry from the Gaia and Hipparcos spacecraft, we identified dynamical evidence for a gas giant planet around the nearby star HIP 99770.

High-Contrast Imaging of Intermediate-Mass Giants with Long-Term Radial Velocity Trends.

A radial velocity (RV) survey for intermediate-mass giants has been operated for over a decade at Okayama Astrophysical Observatory (OAO). The OAO survey has revealed that some giants show long-term linear RV accelerations (RV trends), indicating the presence of outer companions. Direct imaging observations can help clarify what objects generate these RV trends.

[A case of bilateral aplasia of the submandibular glands associated with a unilateral submandibular hemangioma].

Congenital aplasia of the major salivary gland is a rare condition. We report on a case of bilateral aplasia of the submandibular glands associated with a left submandibular hemangioma. A 62-year-old woman came to our department complaining of a 3-year history of left submandibular swelling.

[A successful case of advanced nasal adenocarcinoma treated with tumor dormancy therapy with S -1 alone].

We report a 65-year-old female case of low-grade non-intestinal type adenocarcinoma of the nasal cavity with bilateral metastases to the cervical lymph nodes(T3N2cM0: Stage IV A). Chemoradiotherapy administered as first-line therapy yielded only a partial response in the primary tumor and metastatic lesions, and subsequent chemotherapy with S-1(at a dose of 80 mg per day)alone was applied as tumor dormancy therapy(TDT)on an outpatient basis. Adverse events during S-1 medication were limited to a decrease in leukocyte count and hemoglobin level, both of which were grade 1.

Spindle cell carcinoma as a locally recurrent malignancy after surgery for early lingual squamous cell carcinoma.

Spindle cell carcinoma (SpCC) of the tongue is a relatively rare malignancy. We treated a patient with metachronous early squamous cell carcinoma (SCC) in both margins of the tongue (right side first followed by left side). Eight years after treatment for the first SCC by surgery and radiotherapy, the second SCC occurred in the contralateral margin of the tongue.

Radiosurgery for acoustic neuromas: results of low-dose treatment.

Objective: The results of radiosurgical treatment of acoustic neuromas have improved by reducing the tumor marginal doses. We report relatively long-term follow-up results (>5 yr) for patients who underwent low-dose radiosurgery.

Methods: We treated and followed 51 consecutive patients with unilateral acoustic neuromas who were treated from January 1994 to December 1996 by gamma knife radiosurgery at low doses ( View Article and Find Full Text PDF

[A device for tracheostomized children in home care].

Tracheomized children with deglutition disturbance require frequent suction--a procedure that may present problems for parents and other home-caregivers. We introduced a suction pump to drain the thoracic cavity continuously. This reduced the number of times of suction was required and raised no problems.

[A case of 9p-deletion syndrome with congenital median nasal fistula].

We report a case of 9p-syndrome with congenital median nasal fistula in a boy born to a 28-year-old mother as the second child by normal delivery. The fistula opened at the base of the bridge of the nose and ran between the nasal septum cartilage to the anterior cranial fossa. A frontal craniotomy and transcolumellar skin incision were conducted to extirpate the fistula.