• Title/Summary/Keyword: connective tissue

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Polymeria with an Extra Hindlimb at the Pelvic Region, Occured in Korean Native Calf (한우 송아지의 후지에 발생한 과다사지)

  • 한동운
    • Journal of Veterinary Clinics
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    • v.20 no.3
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    • pp.423-426
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    • 2003
  • Congenital anomalies occur at low levels in Korean antive cattle. PCR and Serum neutrlizing test against BVD, Akabane virus, Ibaraki virus, Kasba virus were examined. The results were all negative. Gross anatomical analysis was carried aout. Congenital abnormal newborn calf had 2 atropic left hindlimbs, which was nor moved autonomosly. The length of 2 atropic hindlimbs was 72 em and 48cm respectively. Both of them were curved severely at joints. Affected limbs were developed in connective tissue but lack of muscular tissue. In the abdominal region right kidney was normal. But there were two left kidneys which was half size compared with normal kidney. One of them had polycysts. In skeletal region, affected left limb is defective of head of femur and tibia.

Ganglion Cysts in Three Dogs (개의 결절종(ganglion cyst) 3 예)

  • Cho, Ho-Seong;Cho, Kyoung-Oh;Park, Nam-Yong
    • Korean Journal of Veterinary Pathology
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    • v.5 no.2
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    • pp.67-70
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    • 2001
  • Spontaneous subcutaneous cysts were detected from three dogs, being a 4-year-old male shih tzu, an 11-month-old female britany spaniel and a 9-month-old male mongrel. All the cysts were occurred around the joints (one elbow's and two shoulderes', respectively). After surgical removal, the lesions did not recur for 6 months follow-up. Neither cyst communicated with the joint cavity. Grossly, the subcutaneous ovoid cysts had moderate to abundant mucinous fluid. Histologically, the cyst wall consisted of inner myxomatous and outer immature connective tissue. Some parts of the cyst wall had various stages of myxoid metaplasia of collagen tissue leading to new cyst formation. The true lining cells of the inner cyst wall were not observed in all the cysts. From these results, these cases were diagnosed as subcutaneous ganglion cysts. This is the first report of canine subcutaneous ganglion cysts in Korea.

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Tooth dentin regeneration and its clinical application (치아 상아질의 재생과 그 임상적 활용)

  • Bae, Hyun Sook;Park, Joo-Cheol
    • The Journal of the Korean dental association
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    • v.55 no.5
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    • pp.352-357
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    • 2017
  • Teeth are made up of three hard tissues, enamel, dentin, and cementum. The dental pulp is the only non-mineralized connective tooth tissue that is surrounded by dentin. The dentin-pulp complex is able to respond to injury by producing hard tissue deposition. However, dentin is considered one of the most difficult tissues to regenerate because of its unique anatomic and physiologic nature. Recently, advances in understanding the applicability of bio-active dentin regenerating proteins are emerging with the development of biological-based therapies using bio-active materials. Dentin defects were regenerated by the deposition of tubular physiologic dentin after application of the bio-active protein in a beagle dog model. Therefore, the bio-active protein may be able to serve as a novel dentin regenerating material and improve symptoms of dentin hypersensitivity.

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EXPERIMENTAL STUDY ON THE EFFECT OF FORMOCRESOL TO THE PULP TISSUE (Formocresol이 치수조직(齒髓組織)에 미치는 영향(影響)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Park, Duk-Sang
    • Restorative Dentistry and Endodontics
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    • v.6 no.1
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    • pp.17-25
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    • 1980
  • The purpose of this study was to evaluate the pulpal response against calcium hydroxide and zinc oxide containing various concentration of formocresol (0.1, 0.5, 1, 5, 10, 20 and 30%). The experiment was performed on dog's teeth (75 teeth from 5 dogs: Table 1.) and the teeth were routinly treated in laboratory procedures. Followings are the results obtained through microscopical examination. 1. In zinc oxide group, intlammatory reaction was severe in low concentrated formocresol and the (higher the concentration of formocresol the milder the inflammatory reaction was more evident. 2. In zinc oxide group, inflammatory change was milder at 3 weeks than 1 week, and proliferation of young connective tissue was seen at 3 weeks. 3. In calcium hydroxide group, inflammatory change in relation to the concentration of formocresol was not noticeable. 4. In calcium hydroxide group, repair process with decreased inflammatory reaction and fibrosis, and dentin bridge like layer was found at 3 weeks.

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Localized Fibrous Tumor of the Pleura -1 Case- (국소성 흉막 섬유성 종양 -1례보고-)

  • 박주철
    • Journal of Chest Surgery
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    • v.33 no.2
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    • pp.203-206
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    • 2000
  • A 44-year-old man was transferred to our department for mediastinal mass. He had suffered from only an easily fatiguable condition for 1 month. A physical examination and laboratory finding of the patient disclosed no abnormality. A chest radiograph showed a soft tissue tumor in the posterior mediastinum. It was well circumscribed and ovoid. Invasions to adjacent organs were not seen. Therefore it was though the 5th intercostal space. The tumor mass was attached to the visceral pleura of the right upper lobe by a pedicle and this pedunculated tumor laid entirely within the pleural cavity. Excision of the tumor which measured 7$\times$7$\times$3cm was done easily. Pathologic studies confirmed the diagnosis of localized fibrous tumor of the pleura. Localized fibrous tumor of the pleura is rare, This tumor along ith the evidence from ultrastructural and immunohistochemical studies has led most researchers to conclude that localized fibrous tumor is not of the mesothelial origin but arises in the submesothelial connective tissue.

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A Pathologic Study on the Gastric Ulcers of the Pigs (돼지의 위궤양에 관한 병리학적 관찰)

  • Eom Seok-Young;Bak Ung-Bok;Lim Chang-Hyeong
    • Journal of Veterinary Clinics
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    • v.3 no.2
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    • pp.335-345
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    • 1986
  • A total of 499 stomachs consisted of 393 slaughter and 106 breeding pigs from industrial farm was examined for ulcerative lesions grossly and microscopically. The relationship between the ulcerative lesions and stomach contents was also examined. 1. The majority of stomachs has one or more lesions of ulcerative process, including parakeratosis(64.1%), erosions(10.2%), acute ulcers(2.8%), chronic ulcers(1.4%), and scars(0.8%). 2. The incidence and the degree of the esophagogastric lesions in the breeding pigs were similar to those of the slaughter pigs. But ulcerative lesions of the fundic lesions in the breeding pigs were found to be more remarkable than those of the slaughter pigs. 3. The stomach contents of the pigs having gastric ulcers were mostly fluid in nature, which were dry in the normal stomach. 4. Histologically, muscular hypertrophy, connective tissue hyperplasia and vascularity were shown in the ulcerative lesions of the esophagogastric portion. Thrombosis, necrosis and granulation tissue formation were found frequently.

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Venereal Squamous Papilloma in a Male Dog

  • Yun, Sungho;Kwon, Young-sam
    • Journal of Veterinary Clinics
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    • v.33 no.2
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    • pp.122-123
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    • 2016
  • A dog (Maltese, 4-year-old, intact male) was referred to the hospital because of the multiple cabbage-shaped nodular masses on penis, preputial fornix and inner layer of prepuce with the free-roaming history. Those appearance was similar with the characteristic of transmissible venereal tumor (TVT). As a result, it was tentatively diagnosed as TVT by the veterinarian of a local clinic and treated with vincristine sulfate. However, the lesion did not regress. Histologically, the mass was consisted of fibrovascular connective tissue stalks and keratinized stratified squamous epithelium, and koilocytosis and intranuclear inclusion body were not shown in the epithelial layer. In addition, inflammatory changes were minimal in the tissue of mass. Based on these findings, this case was diagnosed as venereal squamous papilloma. As the treatments of TVT and papilloma differs, practitioners must be cautious with the diagnosis.

Studies on the Ovarian Hemosiderin of Sow and Cow (돈(豚) 및 우(牛) 난소(卵巢)의 혈철소(血鐵素)에 관(關)하여)

  • Kim, Hwa Sik;Jang, In Ho;Lee, Jae Hyun
    • Korean Journal of Veterinary Research
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    • v.11 no.1
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    • pp.97-102
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    • 1971
  • 60 cases of swine and bovine ovaries were investigated for detecting the homosiderin pigment by means of Perl's prussian blue reaction. The results abtained were as follows; 1. Among the 30 cases of normal adult swine ovaries, 20 cases (66.6%) were presented as positive. 2. The hemosiderin pigment was detected in corpus albicans, connective tissue of corpus luteum, theca externa of follicles and interstitial tissue of ovary in swine. 3. The morphological characteristics of the hemosiderin pigment of swine ovaries were fine and coarse granules or amorphous and homogenous pigment. 4. In 30 cases of bovine ovaries, the hemosiderin pigment was not detected.

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Collagen electrospun chitosan-PLLA membrane for guided bone regeneration

  • Baek, Hyon-Jin;Kim, Kyung-Hwa;Jung, Ji-Eun;Lee, Ju-Yeon;Ku, young;Chung, Chong-Pyung;Lee, Seung-Jin
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.229.1-229.1
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    • 2003
  • Recently, the barrier membranes have been applied for regenerating bone surrounding peri-implant defects in guided bone regeneration(GBR). GBR membrane should provide mechanical support sufficient to withstand in vivo forces and maintain wound space for bone regeneration. The ability to exclude unwanted tissues of cells(connective tissue and epithelium) is needed. In addition large surface area is conductive to tissue ingrowth. The search for ideal materials that biocompatible, bioresorbable and can support the growth and phenotypic expression of osteoblasts is a major challenge in the biomedical application for the repair of bone defects. (omitted)

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Superficial angiomyxoma of the posterior neck

  • Hwang, Young Joong;Lee, Hong Won;Lee, Il Seok;Jung, Sung Gyun;Lee, Hye Kyung
    • Archives of Craniofacial Surgery
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    • v.22 no.1
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    • pp.62-65
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    • 2021
  • Superficial angiomyxoma (SA) is a rare, benign, cutaneous soft tissue tumor. It is composed of myxoid matrix and blood vessels. Herein, we report a case of a solitary SA on the posterior neck of a 6-year-old boy. An analysis of the biopsied specimen showed a prominent myxoid stroma with thin-walled, branching blood vessels, revealing the presence of an SA. SA especially that originating in the posterior neck, is rarely seen and should be considered as a differential diagnosis for a solitary mass in the posterior neck.