Nippon Jibiinkoka Gakkai Kaiho
Online ISSN : 1883-0854
Print ISSN : 0030-6622
ISSN-L : 0030-6622
Volume 113, Issue 5
Displaying 1-6 of 6 articles from this issue
Review article
Original article
  • Masahiro Kikuchi, Shogo Shinohara, Keizo Fujiwara, Shin-ya Hori, Yosuk ...
    2010 Volume 113 Issue 5 Pages 441-449
    Published: 2010
    Released on J-STAGE: March 12, 2011
    JOURNAL FREE ACCESS
    Objectives:
    We evaluated differential diagnoses of cystic parotid gland lesions and the efficacy of preoperative diagnosis.
    Materials and Methods:
    Of 191 parotid gland nodules resected between January 2003 and October 2008, 167 (87%) were benign and 24 (13%) malignant. Thirty-five parotid gland nodules whose components were almost cystic were enrolled in this study. All cystic lesions were retrospectively evaluated with respect to preoperative diagnostic examinations and histopathological confirmed diagnosis.
    Cystic components in surgical specimens were also evaluated histopathologically. The relationships with magnetic resonance imaging (MRI) findings and histopathological confirmed diagnosis were studied.
    Results:
    Of 35 cystic lesions, 11 were complete cystic masses and had no mural nodules, while remaining 24 were incomplete and had mural nodules. Histopathological examinations showed that 5 were nonneoplastic, 27 were cystic degenerations of benign tumors, and 3 were cystic degenerations of malignant tumors. In the 11 complete cysts, preoperative diagnosis could not be made using any modality, whether with FNAC, salivary scintigraphy, or 67-gallium citrate scintigraphy. Of 24 incomplete cysts, only 9 cystic Warthin tumors were diagnosed correctly before surgery. Studies of cystic components in MRI and histopathology suggested that hemorrhagic degeneration of malignant tumors should be kept in mind for cystic lesions showing hemorrhagic portions.
    Conclusions:
    Cystic parotid gland lesions are difficult to diagnose correctly before surgery, but the evaluation of cystic components by MRI and FNAC is helpful in differentiating between benign and malignant tumors.
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  • Takuto Yoshida, Kiyoshi Yanagi, Yoko Okino, Toru Imai, Hiroshi Moriyam ...
    2010 Volume 113 Issue 5 Pages 450-455
    Published: 2010
    Released on J-STAGE: March 12, 2011
    JOURNAL FREE ACCESS
    Blowout fracture repositioning is done, surgically, infraorbitally, transnasally following endoscopic sinus surgery, and transantrally. Repositioning using fenestration is minimally invasive compared to the conventional Caldwell Luc procedure. Subjects involved 21 cases, and was under the medical treatment. I estimated the treatment results as the improvement degree of subjective symptoms at the improvement degree of the visible symptom views that used a Hess chart. As a result, the fenestration method showed good improvement degree, and it was not the thing which had the big vice-damage. Fenestration thus is useful in blowout fracture repositioning.
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  • Torahiko Nakashima, Katsumasa Nakamura, Hideki Shiratsuchi, Ryuji Yasu ...
    2010 Volume 113 Issue 5 Pages 456-462
    Published: 2010
    Released on J-STAGE: March 12, 2011
    JOURNAL FREE ACCESS
    Partial glossectomy and low-dose-rate (LDR) brachytherapy are both effective in early-stage tongue cancer without lymph node metastasis, although head and neck surgeons and radiation oncologists disagree on which treatment is superior. Because our subjects select the treatment modality, we compared treatment results between 39 subjects undergoing partial glossectomy and 107 undergoing brachytherapy for stage I/II tongue cancer.
    Local recurrence was observed in 10% and cervical lymph node recurrence in 23% following partial glossectomy, versus local recurrence in 13% and cervical lymph node recurrence in 24% following brachytherapy. Disease-free 5-year survival was 87.0% following partial glossectomy and 90.7% following brachytherapy. Because incidence of local recurrence, nodal metastasis, and prognosis were the same regardless of treatment modality, treatment should be based on the age, performance status, and quality of life among subjects.
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