No abstract available.
Meningitis*

No abstract available.
Mortality*

Under the extreme change of the environment, animals react physiologically to adapt to the stress and secrete catecholamines. Cold exposure is a kind of the environmental stress. Author tried to determine the amount of catecholamines in rat urine as a parameter of physiological response to cold stress. Urinary catecholamine was measured by using HPLC with fluorescence detector, coation exchange column prepacked with Bio-Rex 70 and ammonium pentaborate as catecholamine eluent. The amount of dopamine in normal state rat urine was 42.0 ng, but under the low temperature of 5 degrees C, the dopamine amount was increased to 221.25 ng/5 ml. Above findings are suggesting that catecholamine secretion, especially dopamine, increase in the stressful condition such as cold exposure.
Ammonium Compounds ; Animals ; Catecholamines ; Chromatography, High Pressure Liquid ; Dopamine ; Fluorescence ; Rats*

No abstract available.
Ameloblastoma

PURPOSE: The purpose of this study was to evaluate computed tomographic (CT) findings of deep neck space infection(DNSI) with particular attention to the differences in the spaces involved and in complications between odontogenic and nonodontogenic groups. MATERIALS AND METHODS: Forty-four patients(21 odontogenic and 23 nonodontogenic) were included in this study. Among odontogenic DNSls, 15 had the dental infection in the second or third mandibular molar. We compared the CT features between odontogenic and nonodontogenic DNSIs with special emphasis on the differences in the spaces involved and in the rate and type of complications. RESULTS: In all patients, CT clearly differentiated abscess from cellulitis. The most common spaces involved in 21 patients with odontogenic DNSl were the parapharyngeal(n=18), the submandibular(n=18), the anterior visceral(n=13), the masticator(n=9), and the sublingual(n=7) spaces. In contrast, in 23 patients with nonodontogenic DNSI, the anterior visceral space(n=14) was most frequently involved. The parapharyngeal, the submandibular, and the masticator spaces were statistically more frequently involved in odontogenic than in nonodontogenic DNSI(p<.05). Twenty-two patients had one or more complications shown by CT, of which airway compromise was more frequent and severe in odontogenicthan in nonodontogenic DNSI. CONCLUSION: We conclude that the parapharyngeal, the submandibular, and the masticator spaces are more significantly vulnerable in odontogenic DNSl than in nonodontogenic DNSl. The predilection for certain spaces of the neck in odontogenic DNSl seems to originate from the intimate relationship of the mandibular molars to the adjacent deep neck spaces.
Abscess ; Cellulitis ; Humans ; Molar ; Neck*

PURPOSE: The purpose of this study was to evaluate computed tomographic (CT) findings of deep neck space infection(DNSI) with particular attention to the differences in the spaces involved and in complications between odontogenic and nonodontogenic groups. MATERIALS AND METHODS: Forty-four patients(21 odontogenic and 23 nonodontogenic) were included in this study. Among odontogenic DNSls, 15 had the dental infection in the second or third mandibular molar. We compared the CT features between odontogenic and nonodontogenic DNSIs with special emphasis on the differences in the spaces involved and in the rate and type of complications. RESULTS: In all patients, CT clearly differentiated abscess from cellulitis. The most common spaces involved in 21 patients with odontogenic DNSl were the parapharyngeal(n=18), the submandibular(n=18), the anterior visceral(n=13), the masticator(n=9), and the sublingual(n=7) spaces. In contrast, in 23 patients with nonodontogenic DNSI, the anterior visceral space(n=14) was most frequently involved. The parapharyngeal, the submandibular, and the masticator spaces were statistically more frequently involved in odontogenic than in nonodontogenic DNSI(p<.05). Twenty-two patients had one or more complications shown by CT, of which airway compromise was more frequent and severe in odontogenicthan in nonodontogenic DNSI. CONCLUSION: We conclude that the parapharyngeal, the submandibular, and the masticator spaces are more significantly vulnerable in odontogenic DNSl than in nonodontogenic DNSl. The predilection for certain spaces of the neck in odontogenic DNSl seems to originate from the intimate relationship of the mandibular molars to the adjacent deep neck spaces.
Abscess ; Cellulitis ; Humans ; Molar ; Neck*

No abstract available.
Animals ; Flowmeters* ; Magnets* ; Male ; Models, Animal* ; Penile Erection* ; Rats*

No abstract available.
Animals ; Clomipramine* ; Preoptic Area* ; Rats* ; Serotonin Uptake Inhibitors* ; Serotonin*

No abstract available.
Erythema*

We report a rare case of pleomorphic adenoma arising from heterotopic salivary gland tissue in the upper neck. Although it is difficult to differentiate this condition from lymph node diseases-including metastasis- on the basis of radiologic findings alone, it should be included in the differential diagnosis of a solitary unilateral solid cervical mass, particularly one in the upper neck.
Adenoma, Pleomorphic* ; Diagnosis, Differential ; Lymph Nodes ; Neck* ; Salivary Glands*