Japanese Journal of Oral and Maxillofacial Surgery
Online ISSN : 2186-1579
Print ISSN : 0021-5163
ISSN-L : 0021-5163
Volume 51, Issue 11
Displaying 1-11 of 11 articles from this issue
  • Yoshihiro YAMASHITA, SCHULTES Gunter, AIGNER Reingard, Tetsu TAKAHASHI
    2005 Volume 51 Issue 11 Pages 530-534
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    The aim of this study was to evaluate the utility of 2-deoxy-2-[18F] fluoro-D-glucose positron emission tomography (18FDG-PET) for monitoring blood perfusion to grafted bone after reconstructive surgery using vascularized bone grafts. Seven patients who received vascularized bone grafts to the mandible after cancer surgery were studied. Three patients received vascularized iliac crest, two patients iliac osteocutaneous flaps, and two patients scapular and latissimus doris combined flaps. The grafts were evaluated by 18FDG-PET 2 days after grafting. In all patients, blood perfusion to the graft bone could be evaluated by 18FDG-PET studies. In six patients with uneventful healing of their vascularized bone grafts, 18FDG-PET studies showed a significantly increased uptake of 18FDG in the grafted bone. In one patient with graft failure, there was no uptake region in the grafted bone. These results suggest that 18FDG-PET studies are very useful for monitoring blood perfusion to vascularized graft bones after surgery.
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  • Yuri NAKAO, Moritaka SHIMA, Shigeru UENO, Gaku WATANABE, Shosuke MORIT ...
    2005 Volume 51 Issue 11 Pages 535-538
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    A teratoma involving the soft palate, tongue, and submandibular tissue in a female neonate is reported. Maternal polyhydramnios suggesting fetal anomalies was diagnosed at the 32nd week of pregnancy, and delivery was accomplished by cesarean section at the 37th week. Since the newborn had a severe respiratory disorder due to an intraoral tumor, immediate intratracheal intubation and resuscitation were done. The intraoral multilocular tumor arose from the soft palate and extended to the tongue, oral floor, and submandibular region. The intraoral tumor was partially enucleated at birth, and the rest was completely enucleated by an intraoral and extraoral approach under general anesthesia after 4 months.
    Histologically, the tumor was diagnosed as a mature teratoma. This case shows the importance of the prenatal diagnosis of fetal anomalies.
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  • Shigeya TAKAHASHI, Yoshiyuki UCHIYAMA, Hiroyuki SUZUKI, Tetsuji NAGATA ...
    2005 Volume 51 Issue 11 Pages 539-542
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    An inverted papilloma arising in the nasal cavity or paranasal sinus is a rare benign disease, with a tendency towards recurrence and malignant progression. We describe a patient with an inverted papilloma in the right maxillary sinus. The patient was a 55-year-old woman with chronic pain in the maxillary region. A panoramic radiograph revealed unique features, closely resembling those of a mucous cyst in the floor of the maxillary sinus. The presence of a mass showing soft tissue density was confirmed on computed tomography. A mucous cyst occurring in the maxillary sinus was diagnosed. The mass was removed from the sinus by an open-window technique. A histological examination during surgery suggested that the biopsy specimens were cyst walls. However, the resected specimen was finally diagnosed to be an inverted papilloma. Recurrence was detected 5months later and verified on computed tomography. The patient underwent surgery to remove the recurrent tumor. Her postoperative course was uneventful, and there has been no sign of recurrence.
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  • Tetsuya NITTA, Yoshiaki KAMIKAWA, Toryu HIRAYAMA, Mahiro BEPPU, Kiyomi ...
    2005 Volume 51 Issue 11 Pages 543-546
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    Improved diagnostic and treatment techniques for malignant tumors and increased numbers of elderly patients have led to the detection of greater numbers of multiple primary cancers. We describe our experience with a case of synchronous primary triple cancers. Thyroid cancer was discovered during treatment for tongue cancer, following a bladder cancer.
    After the diagnosis of tongue cancer, the recurrence of bladder cancer was detected. The recurrent bladder cancer was treated first, followed by the tongue cancer. Radical neck dissection for the tongue cancer revealed occult lymph node metastasis from thyroid cancer. Although thyroidectomy was scheduled to be performed after treatment for the tongue cancer, the second recurrence of bladder cancer was diagnosed. After therapy for this bladder cancer, thyroidectomy was performed.
    Treatment for synchronous primary triple cancers should be planned to achieve the best outcome for each cancer. Outcome is poorer for patients with multiple primary cancers than for those with single primary cancer. To improve the outcome of synchronous primary cancers, early detection, prompt and effective treatment, and close follow-up of the patient's course, including examination of predilection sites, are considered important.
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  • Akiko NAWA, Hiroshi SHIMASUE, Hideo SHIGEISHI, Yoshiaki NINOMIYA, Ikuk ...
    2005 Volume 51 Issue 11 Pages 547-550
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    Ectopic calcification involves calcium deposition in soft tissues and can occur in subcutaneous, acromioclavicular joint, and intramyocardial tissues. We describe our experience with a rare case of jaw trismus caused by an isolated calcified mass in the temporal muscle and a hyperplasia-like lesion of the mandibular coronoid process. The patient was a 68-year-old woman. Radiographic examination revealed a hyperplasia-like region in the left mandibular coronoid process and an isolated impermeable mass in the temporal muscle. Coronoidectomy and removal of the isolated mass were performed through an intra-oral approach under general anesthesia. The isolated hard tissue consisted of many tubercles including calcification and cartilage-like tissue. The hyperplasia-like region of the mandibular coronoid process also consisted of calcified tubercles. Cartilage and fibrous bone-like tissue were found in peripheral areas of the calcification at the border of the normal bone. After the coronoidectomy, jaw trismus improved, and no recurrence has occurred.
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  • Haruki SATO, Hitoshi MIYACHI, Naofumi OBAYASHI, Hatsuhiko MAEDA, Yoich ...
    2005 Volume 51 Issue 11 Pages 551-554
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    We describe a case of acinic cell carcinoma arising in the accessory parotid gland. The patient was a 61-year-old man who had been aware of a mass approximately 10mm in diameter in the right cheek since 1987, but left it untreated. The patient suddenly felt spontaneous pain of the cheek and was referred to our department. On the initial examination, a mass approximately 18mm in diameter was noted in the subcutaneous tissue just anterior to the right masseter muscle, and hard elastic distension with a clear boundary was palpated on the face. The oral mucosa was not affected; however, bloody saliva flowed from the parotid duct opening. CT detected a mass with homogenous contents and a clear boundary on the masseter muscle. The clinical diagnosis was a tumor of the right accessory parotid gland. The tumor was resected under general anesthesia. Since the tumor involved the parotid duct, the duct was resected and anastomosed. The histopathological diagnosis was acinic cell carcinoma. There has been no evidence of local recurrence or metastasis as of 30 months after operation.
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  • Hirohito KUBO, Yuichi OHNISHI, Aki TAKEKITA, Hirotaka YAMAMOTO, Kenji ...
    2005 Volume 51 Issue 11 Pages 555-558
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    Mucinous adenocarcinoma is a rare malignant neoplasm included in the classification of salivary gland tumors by the WHO (1991). We report a case of mucinous adenocarcinoma arising in the hard palate. A 55-yearold man was referred to our hospital because of a painless swelling in the left side of the hard palate, which was first noticed about 2 months ago and had gradually increased in size. On initial examination, an elastic hard mass measuring approximately 7×6mm in diameter with indurations was palpable. Magnetic resonance imaging showed low signals on Tl-weighted images and high signals on T2-weighted images. An internal structure was mottled on T2-weigted images. The lesion was suspected to be a malignant salivary gland tumor on biopsy. The tumor was excised with left partial maxillectomy. Microscopically, the tumor was composed of nests, glands, and cords and had a cystic structure. Mucus-filled cystic cavities were lined by tumor cells, with some floating tumor cells. The tumor cells and cystic spaces were positive for mucicarmine and PAS. Immunohistochemically, pan-keratin, CK7, vimentin, and GFAP were positive in the tumor cells. The final histopathological diagnosis was mucinous adenocarcinoma.
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  • Yoshiaki NINOMIYA, Koichiro HIGASHIKAWA, Hidetoshi TOHMORI, Takeshi NO ...
    2005 Volume 51 Issue 11 Pages 559-562
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    We report an ectopically impacted tooth at the mandibular notch accompanied by inflammatory resorption of the tooth and peripheral inflammation. A 73-year-old woman presented with a swelling in the right preauricular region, as well as trismus. Radiographic examination showed an impacted tooth in the mandibular notch with pericoronal resorption of the bone. The tooth, which had a defect in the cervical and crown region, was extracted under general anesthesia. A histological study revealed that the defect was not due to caries, but inflammatory resorption.
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  • Munehiro TAKEDA, Masahide MIZUTANI, Noriaki TANAKA, Yoshiki INADA, Mas ...
    2005 Volume 51 Issue 11 Pages 563-566
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    Since the development of replacement therapy with factor VIII and factor IX for the treatment of hemophilia, various operations have been performed in patients with hemophilia. However, there have been few reports of neck dissection in patients with hemophilia when surgery was unavoidable. We present a case of cancer of the tongue in a patient with hemophilia A. A 63-year-old man had been given a diagnosis of hemophilia A as a child. He was admitted to the hospital because of contact pain at the right edge of his tongue, and histopathological examination confirmed squamous cell carcinoma. Blood coagulation studies showed a normal activated partial thromboplastin time (APTT)(37.4s, normal range 25-41%). Bleeding time was within normal limits, and the factor VIII level was 17%. A diagnosis of cancer of the tongue was made, and partial excision of the tongue was carried out. To maintain factor VIII levels above 40%, factor VIII concentrate was administered from the day of surgery onward. Slight hemorrhage from the surgical wound was observed at the 17th postoperative day, and replacement therapy with factor VIII concentrate was therefore continued. Seven months after the operation, metastasis in a right submandibular lymph node was found on computed tomography. We carried out a radical neck dissection. To maintain factor VIII levels above 50%, factor VIII concentrate was administered from the day of surgery, and no hemorrhagic complications were observed.
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  • Atsuhisa KAJIHARA, Yuichiro IMAI, Nobuhiro YAMAKAWA, Kazuhiko OHGI, Ka ...
    2005 Volume 51 Issue 11 Pages 567-570
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    At present, granulocyte transfusions (GT) are used less and less frequently for infection control in patients with acute myeloid leukemia (AML). Application of GT is limited because of its low efficacy and potential adverse effects. It has been largely replaced by newly developed antibiotics and granulocyte colony stimulating (G-CSF) therapy. However, GT is considered useful in patients with serious infections caused by resistant bacteria or when G-CSF is ineffective. We describe our experience with GT in a patient with AML who underwent tooth extraction.
    A 42-year-old man with AML was referred because of a painful swelling in the left mandibular molar region. The clinical diagnosis was apical periodontitis of the second molar and pericoronitis of the third molar on the left side of the mandible. Since the patient did not respond to G-CSF, extraction of the second and third molars was perfomed along with GT. Postoperatively, graft versus host disease (GVHD) and infection did not develop, and the patient's course was uneventful.
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  • Masayoshi TAKEYAMA, Hideyuki IKUMOTO, Ken-ichiro SUGA, Hiromitsu KOEDA ...
    2005 Volume 51 Issue 11 Pages 571-574
    Published: November 20, 2005
    Released on J-STAGE: April 22, 2011
    JOURNAL FREE ACCESS
    Chronic external dental fistula is associated with relatively large scars and granulation tissue around the cutaneous fistula.
    We treated 4 cases of external dental fistulas by the Rhomboid-to-W technique, which can be performed simultaneously to the excision of the orifice and canal of the fistula and plastic repair of the tissue defect.
    Few studies have used this technique to treat external dental fistula.
    This technique has some advantages for treating external dental fistula and is relatively easy. We report this procedure and some cases.
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