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Volume 41 (2001)
- Issue 4 Pages 223-
- Issue 3 Pages 161-
- Issue 2Supplement Pag･･･
- Issue 2 Pages 91-
- Issue 1 Pages 1-
Volume 41, Issue 1
Displaying 1-7 of 7 articles from this issue
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Takehito SASAKI2001 Volume 41 Issue 1 Pages 1-2
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (288K) -
Eiichiro ARIJI, Yoshiko ARIJI, Shigemitsu SAKUMA, Yasuo KIMURA2001 Volume 41 Issue 1 Pages 3-12
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDoppler sonography enables the assessment of blood flow and can be applied in the diagnosis of various lesions. Concomitant use of Doppler and conventional gray-scale sonography, for example, contributes to an excellent diagnosis with a higher accuracy in cervical lymph node metastases. Three organs are focused on in this study, the submandibular gland, the masseter muscle and the tongue, for which we have no or a relatively small amount of data obtained by Doppler sonography. For the submandibular gland, gustatory stimulation elicits both salivary secretion and blood flow to the gland through parasympathetic nervous control, and it has been reported that the secretion was well correlated to blood flow in animal experiments. We confirmed this correlation in humans. For the masseter muscle and tongue, there are no available Doppler sonography data and we determined the normal appearances of the four main arteries feeding the masseter muscle on Doppler sonograms in healthy volunteers. We speculated that flow velocity of the facial artery might be altered by local factors in the contracted masseter muscle as well as the general response in low-level static contraction of the masseter muscle. The deep lingual arteries were visible symmetrically on both sides of the lingual septum on the transverse Doppler sonogram of healthy volunteers. In patients with cancer of the tongue, characteristic Doppler sonographic features were the vasculature in and around the tumor and the enlarged deep lingual artery on the affected side. Although further studies are needed, Doppler sonography appears to be a promising diagnostic tool for these organs.View full abstractDownload PDF (9782K) -
Takenori NOIKURA, Motoo KITANO2001 Volume 41 Issue 1 Pages 13-35
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSFibro-osseous lesions of the jaws has been accepted as a general designation for lesions characterized by the cellular or fibrous tissue containing various amounts of bony or cementum-like tissues. In the revised second edition of WHO, fibro-osseous lesion was classified in “neoplasms and other lesions of the bone” except benign cementoblastoma as a odontogenic tumor.
In this review, we introduce the radiological and histopathological features of the typical cases of fibro-osseous lesions of the jaw and discuss about the characterization of each disease. Although the etiology and clinical features and prognosis of each lesions are quite different, in most of the cases the histopathological features are similar. From this reason, fibro-osseous lesions are hard to diagnose only by histopathological findings. We should intend to the clinical history or findings of many imaging modalities such as radiography, CT, ultrasonography and MRI.
It is hoped that this review will be helpful for the clinicians to understand diagnostic features of each fibro-osseous lesion of the jaws.View full abstractDownload PDF (34033K) -
-A Study of Minor Population Lymphocytes-Chiho YAMASHITA, Daigo SATOH, Takashi YOSUE2001 Volume 41 Issue 1 Pages 36-44
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSIn the present study we investigates the influence of the local irradiation of a portion of the maxilla on the numbers of lymphocyte subsets in peripheral blood and spleen, specifically minor population lymphocytes (γ δT cells and NKT cells). Male C57BL/6 mice at 15 weeks of age were used for the experiments. In the irradiation group, a portion of the maxilla was exposed to X-ray (2.0Gy/min, 10Gy) and we analyzed lymphocytes using flow cytometry (anti-CD3, CD4, CD8, TCR αβ, TCR γ δ and NK1.1 monoclonal antibodies), and compared the outcome to that obtained from the non-irradiation groups. The following results were obtained: 1) In peripheral blood, CD4+SP T cells, CD8+SP T cells, α βT cells, γ δT cells and NK cells decreased significantly on the first day and third day after irradiation. NKT cells decreased significantly on the third day after irradiation. 2) In spleen, CD4+SP T cells, CD8+SP T cells, α βT cells and γ δT cells decreased significantly on the first day after irradiation. NK cells and NKT cells did not change significantly after irradiation. The above results indicate that the changes in lymphocytes have a direct relationship to radiosensitivity, and the origin and distribution in lymphocyte subsets.View full abstractDownload PDF (1134K) -
Ayumi HINOKI, Fukiko KOBAYASHI, Jusuke ITO, Takafumi HAYASHI, Takashi ...2001 Volume 41 Issue 1 Pages 45-51
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSThis paper reports a case of infantile fibromatosis occurring at the alveolar portion of the mandible. Imaging findings were analyzed in detail.
The patient was a 7-year-old girl, complaining of a painless swelling of the gingiva at the molar region of the left mandible, which had been noticed two days before the first consultation. There was an elastic hard mass at the first molar to retromolar region. CT scans revealed a soft tissue mass protruding from the alveolar crest and invading the mandible. The mass showed more intense enhancement than the muscle and the peripheral portion of the mass was more enhancement than the central portion of the mass, including a tooth in it after contrast infusion.
The alveolar bone was destroyed from the crest to the region below the apex of the first molar. The margin of the lesion was irregular. There were lacerations of the lingual cortex that bulged slightly. A malignant tumor with low malignancy was diagnosed based on imaging findings. Histological diagnosis was infantile fibromatosis. The lesion was supposed to have originated from the soft tissue at or around the alveolar crest.View full abstractDownload PDF (12560K) -
Tsuyoshi SATO, Yoshihiro KAWABATA, Hiroko INDO, Yasuhiko MORITA, Seigo ...2001 Volume 41 Issue 1 Pages 52-53
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (2325K) -
2001 Volume 41 Issue 1 Pages 54-68
Published: March 30, 2001
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (2558K)
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