Gastric Ulcer Perforation to the Liver Diagnosed by Endoscopic Biopsy.

Peptic ulcer disease is common and can be diagnosed easily if the patient has an ulcer history or characteristic abdominal symptoms. On the other hand, it may take a long time for the patient to visit the hospital due to severe complications if the patient is old or insensitive to symptoms caused by peptic ulcers. In the present case, a 72-year-old female visited the hospital due to general weakness and inadequate oral intake, which started two weeks ago.

Wide-gamut plasmonic color filters using a complementary design method.

Plasmonic color filters (PCFs) can acquire primary colors from non-polarized incident light through a two-dimensional arrangement of subwavelength holes. However, owing to the geometry of the 2D array, unintended secondary transmitted peaks derived from the higher-order modes of the surface plasmon resonance (SPR) lead to color cross-talk with the primary peaks. Herein, we propose a complementary design method for generating high-purity red, green, and blue (R/G/B) by combining the G/B filters of hole-arrays with the R filters of dot-arrays.

Favorable vocal fold wound healing induced by platelet-rich plasma injection.

Objectives: To introduce a new injection material for vocal fold diseases, which could be readily translated to clinical practice, we investigated the effectiveness of platelet-rich plasma (PRP) injection on the injured vocal fold in terms of histological recovery.

Methods: Blood samples were drawn from New Zealand White rabbits and PRP was isolated through centrifugation and separation of the samples. Using a CO2 laser, we made a linear wound in the 24 vocal fold sides of 12 rabbits and injected each wound with PRP on one vocal fold side and normal saline (NS) on the other.

Plasma gel as a new augmentation material for injection laryngoplasty in rabbit model: histologic analysis.

Objectives: Currently, a variety of materials are available for the treatment of glottal insufficiency. Ideal injection materials should be inexpensive, easily obtainable, nontoxic, and biocompatible. Plasma gel has recently been developed as an injectable, autologous material used in plastic surgery.

Morphological and histological changes of rabbit vocal fold after steroid injection.

Objectives/hypothesis: The purpose of this study was to investigate the morphological and histological change of vocal folds (VFs) after steroid injection in a rabbit model.

Study Design: Prospective animal study.

Setting: Tertiary academic medical center.