Showing papers by "Yoshiyuki Iida published in 2010"

Osteoclast-type giant cell tumor of minor salivary gland with mucin-rich salivary duct carcinoma: a case report of unusual histology with immunohistochemical analysis.

Abstract: Objective Salivary giant cell tumor (GCT) is exceedingly rare. This article presents an additional rare case of salivary GCT with salivary duct carcinoma (SDC). Study design and results The patient was a 40-year-old Japanese male. The peripheral region of the tumor showed SDC and partly revealed a mucin accumulation with cancer nests, which was a mucin-rich variant of SDC. In the central region of the tumor, mononuclear ovoid tumor cells contained osteoclastic-type giant cells. SDC showed immunopositivity for gross cystic disease fluid protein-15 (GCDFP-15), androgen receptor (AR), and Her-2, whereas the giant cell lesion was negative for GCDFP-15, AR, and Her-2. Mononuclear cells in salivary GCT showed immunopositivity for epithelial membrane antigen and p53. Conclusion The salivary GCT was thought to be neoplastic and derived from epithelial cells. The present case is the first de novo case of intraoral salivary GCT with a mucin-rich variant of SDC.

Clinical application of 320-row multidetector computed tomography for a dynamic three-dimensional vascular study: imaging findings and initial experience

Abstract: The 320-row multidetector computed tomography (MDCT) is now used by both cardiologists and neurosurgeons. It enables dynamic 3D-CT angiography, because the wide-area detector eliminates helical scanning, thus achieving very fast scanning times for single 3D-CT volume data. Some microvascular surgeons are familiar with 64-row MDCT for perforator studies, but there are few reports of studies using 320-row MDCT. This MDCT system was used to follow the dynamic blood flow of small vessels. It is considered to have a great potential in the clinical field of microvascular surgery.

Complications of free jejunal transfer reconstruction for total pharyngolaryngoesophagectomy

Abstract: 近年，多くの施設で咽喉食摘術に対して遊離空腸移植術が第一選択とされ，安定した成績が得られるようになってきた。当院の遊離空腸移植術の術後合併症について検討したので報告する。対象：2002年12月から2008年12月までの6年間に当院で咽喉食摘術に対して遊離空腸移植術を施行した90症例を対象とした。内訳は年齢41～85歳（中央値65歳），男性78例，女性12例であった。結果：術後合併症がみられたのは48症例（53%）であった。晩期合併症である気管孔狭窄19例（21%），吻合部狭窄12例（13%），腸閉塞8例（9%）を多く認めた。縫合不全は2例（2%）に認めた。空腸壊死は1例（1%）に認めた。結語：遊離空腸移植術は安全な術式であるとされているが，晩期の気管孔狭窄，吻合部狭窄，術後腸閉塞は多く認められ長期の経過観察が必要と考えられた。