• Title/Summary/Keyword: tissue cysts

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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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Common and signifiacant cysts at the dental clinic (치과 임상에서 흔하고 의미있는 낭종)

  • Jang, Hyun-Seon
    • The Journal of the Korean dental association
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    • v.55 no.7
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    • pp.489-496
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    • 2017
  • Oral and maxillofacial cyst is defined as an pathogenic cavity with an lining epithelium and connective tissue wall. Cysts of the jaws and periapical regions vary in histogenesis, treatment and prognosis. Cysts with similar clinical and radiographic can be shown different histopathologic features. Cysts are classified into odontogenic cysts and nonodontogenic cysts. Cysts are also divied into true cysts and pseudocyst. True cysts are lined with an epithelium, however pseudocysts are not lined with epithelium. A periapical cyst, dentigerous cyst and odontogenic keratocyst is clinically common and important lesions at dental clinic.

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Pathological Observations of Polycystic Kidney in a Korean Native Calf (한우(韓牛)에 발생(發生)한 Polycystic Kidney)

  • Kwak, Soo Dong;Lee, Cha Soo
    • Korean Journal of Veterinary Research
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    • v.19 no.1
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    • pp.27-32
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    • 1979
  • This paper dealt with the macroscopical and histopathological observations on the polycystic kidney occurred in a Korean native calf aged about a year. The results summarized are as follows: 1. In macroscopical findings, numerous cysts in the bilateral kidneys were seen under the renal capsule, and the cysts were various in size and clear or cloudy in their contents. The cysts in the inner area of the renal cortex were smaller than those of the outer area of the renal cortex in size and in number. 2. In microscopical findings, marked dilatations of Bowman's spaces and convoluted tubules were prominant feature. Numerous cysts with or without eosinophilic materials were contained atrophic glomerulus. prolferation of fibrous connective tissue, atrophy of convoluted tubules were also observed. Inner walls of the cysts were surrounded by cuboidal cells, sguamous cells or fibrous connective tissue. 3. This case was regarded as congenital polycystic kidney belonged to type III of Osathanondh and Potter.

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IMMUNOHISTOPATHOLOGIC STUDY OF PERIAPICAL LESIONS (치근단(齒根端) 병소(病巢)의 면역병리조직학적(免疫病理組織學的) 연구(硏究))

  • Cho, Hyo-Sun
    • Restorative Dentistry and Endodontics
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    • v.8 no.1
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    • pp.19-30
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    • 1982
  • This study was performed to elucidate the histopathologic distribution of immunoglobulins, particularly IgA, IgG and IgM in the periapical lesions, including 22 periapical granulomas and 18 periapical cysts. The immunoperoxidase staining method using reagents manufactured and supplied by Danish DAKO company was employed in this study. In comparison with the immunohistochemical methods, this method was proved to be reliable and convinient one to detect immunoglobulins in the tissue. The following results were obtained: 1. In the 22 periapical granulomas, IgG was found in 20 cases (90.9%), IgA in 16 cases (72.7%) and IgM in 19 cases (86.3%). 2. In the 18 periapical cysts, IgG was found in 16 cases (88.8%), IgA in 13 cases (72.2%) and IgM in 15 cases (83.3%). 3. The distribution of immunoglobulins both in periapical granulomas and periapical cysts was in great diversity according to the lesion and area. 4. More immunoglobulins were found in the exudative area with moderate or severe infiltrations of plasma cells and lymphocytes and less concentration of immunoglobulins were seen in the area with leukocytes infiltration and tissue destruction. 5. The area with collagenolysis and reparative activity contained more abundant IgG and IgM than IgA in periapical granulomas. 6. IgG was dominant in the granulomatous connective tissue and immunoglobulins were not easily found in the fibrous capsule in periapical cysts.

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Acquired Dermoid Cysts within Subcutaneous Scar Tissue (피하 흉터 조직에서 발견된 후천성 유피낭종)

  • Kim, Hyoung Jin;Burm, Jin Sik;Pyon, Jai Kyong;Kim, Yang Woo
    • Archives of Plastic Surgery
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    • v.34 no.4
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    • pp.508-511
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    • 2007
  • Purpose: Dermoid cysts are almost always caused by congenital events. The most widely accepted pathogenesis is that the cysts are dysembryogenetic lesions that arise from ectodermic elements entrapped during the midline fusion. We report a rare case of dermoid cyst, which occurred not congenitally but newly in the subcutaneous scar tissue secondary to trauma. Methods: A 26-year-old man had a deep submental laceration caused by a car accident and got a primary wound closure 16 months ago. There were 18 cm-long submental hypertrophic scar and newly developed palpable masses inside the subcutaneous layer at the center of the scar. Initial impression was an epidermal cyst or a thyroglossal duct cyst. Ultrasonographic finding showed two cystic masses inside the scars at the submental area, but impressed dermoid cysts. The cystic masses were completely removed with W-plasty and histological examination were followed. Results: The histological diagnosis was dermoid cysts which were mainly composed of keratotic squamous epithelium in their inner surface linings and numerous skin appendages such as sebaceous glands, sweat glands, and hair follicles in their cystic lumens histopathologically. During the follow-up period of 25 months, there was no recurrence of any subcutaneous mass in the site of scar. Conclusion: We report a very unusual case of dermoid cysts developed by an acquired cause, considering that the accidental inclusion of deep skin elements caused by a trauma can be a critical origin of dermoid cysts.

Toxoplasmic meningoencephalitis in a stray cat in Korea

  • Kim, Ha-Young;Bae, You-Chan;Woo, Gye-Hyeong;Byun, Jae-Won;Jung, Byeong-Yeal;Park, Jung-Won;Chae, Hee-Sun;Choi, Jae-Yong;Nakayama, Hiroyuki;Hwang, Eui Kyung;Joo, Yi-Seok;Lee, O-Soo
    • Korean Journal of Veterinary Research
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    • v.49 no.4
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    • pp.291-295
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    • 2009
  • A dead stray cat was necropsied for zoonotic feline disease monitoring. Grossly, there were no specific lesions. Major microscopic lesions included lymphocytic meningoencephalitis, malacia, and tissue cysts in the cerebral and cerebellar cortex. The size and shape of tissue cysts were identical to those of Apicomplexa including Toxoplasma (T.) gondii. Bradyzoites in the tissue cyst were strongly positive for T. gondii by immunohistochemistry. Electron microscopy revealed that bradyzoites within the tissue cyst were similar to the morphological features of T. gondii. Fresh tissue samples were examined by a polymerase chain reaction assay and resulted in a specific band of T. gondii only in the brain. Based on the results, this case was diagnosed as toxoplasmosis. This is the first case of toxoplasmic meningoencephalitis in a cat in Korea.

Arthroscopic Treatment for Meniscal Cyst (관절경을 이용한 반월상연골 낭종의 치료)

  • Min, Byoung-Hyun;Lee, Weon Ik;Choi, Seung Joon;Kang, Shin Young
    • Journal of the Korean Arthroscopy Society
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    • v.2 no.2
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    • pp.141-146
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    • 1998
  • Recent studies suggest that most meniscal cysts can be treated surgically by arthroscopic management of the meniscal tear and arthroscopic cyst evacuation. But arthroscopic cyst decompression may sacrifice a substantial amount of meniscal tissue that is not torn in order to expose the "stalk" of the cyst. Nowadays, the trend is changing as preserving the involved meniscus to prevent from inevitable degenerative changes after meniscectomy. The purpose of this report is to describe a new surgical technique that minimizes loss of meniscal tissue in hopes of maximizing residual meniscal function. We experienced 10 patients with meniscal cysts that were consisted of four lateral cysts and six medial cysts. Menisci were torn in all cases. Arthroscopic partial meniscectomy and decompression of cysts were performed in 9 cases, and arthroscopic partial meniscectomy and open cystectomy in 1 case. The procedures were consisted of injection of the methylene blue into the cyst, partial meniscectomy of the meniscal tear until the dye was seen in orifice of the cyst, and decompression of cyst through cystic opening. This article serves to confirm the relationship between torn menisci and cysts, to re-evaluate the occurrence ratio of the meniscal cyst on the medial to lateral meniscus, and to assess the efficacy of arthroscopic partial meniscectomy and decompression of cyst as a potentially meniscal sparing procedure.

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A STUDY ON ELECTROPHORETIC DIFFERENTIATION OF RADICUAR CYSTS AND GRANULOMAS (전기영동분석법(電氣泳動分析法)에 의(依)한 치근단낭종((齒根端囊腫)과 치근단육아종(齒根端肉牙腫)의 감별(鑑別)에 관(關)한 연구(硏究))

  • Bae, Kwang-Shik
    • Restorative Dentistry and Endodontics
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    • v.2 no.1
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    • pp.20-26
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    • 1976
  • Cellulose acetate electrophoresis was used for differential diagnosis of radicular cysts and granulomas. Sixteen periapical lesions were excised from sixteen teeth with radiographic evidence of periapical pathosis, and two normal periodontal tissues were surgically removed from two wisdom teeth. The tissue samples were separated into two parts. Half was prepared for cellulose acetate electrophoresis, and the electrophoretic patterns were scanned with Helena densitometer. The other half was examined histologically, and the histologic diagnoses were then compared with the electrophoretic patterns and with the x-ray findings. The results were the following: 1. The histopathologic results showed the presence of 13 granulomas (81.8%) and 3 cysts (18.3%). 2. An albumin pattern, alpha-globulin pattern, beta-globulin pattern, fibrinogen pattern and gamma-globulin pattern were found in all eighteen cases. 3. All eighteen cases were divided into normal periodontal tissue group, dental granuloma group, and radicular cyst group by the histopathologic diagnosis. The electrophoretic pattern of dental granuloma group and that of normal periodontal tissue group resembled each other. The two groups showed the highest percentage in beta-globulin fraction, and the beta-globulin of dental granuloma group(47.17%) was higher than that of normal periodontal tissue group (40.54%) by 6.63%. On the contrary, beta-globulin fraction of radicular cyst group (28.00%) was much lower than those of the granuloma group (47.17%) and normal periodontal tissue group (40.54%), and alpha-globulin of radicular cyst group (34.16%) was much higher than those of the granuloma group (20.04%) and normal group (19.58%). 4. Five cases (31.3%) of the sixteen periodontal lesions showed different results between histopathologic diagnoses and radiographic findings.

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Marsupialization for management of odontogenic cysts and tumors : Report of three cases with literature review (치성 낭종 및 종양의 치료를 위한 조대술의 사용 : 증례 보고(3례) 및 문헌 고찰)

  • Lee, Jae-Il;Yoon, Hyun-Joong;Lee, Sang-Hwa
    • The Journal of the Korean dental association
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    • v.53 no.8
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    • pp.569-580
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    • 2015
  • Cyst is a closed sac, having a distinct membrane and division compared to the nearby tissue. Most cysts in the oro-maxillofacial area are odontogenic origin and found most commonly by oral and maxillofacial surgeons. Enucleation is considered as a definitive therapy in the management of these cysts. However, to select the treatment method for large cyst, consideration of position of the cyst, size and accessibility to main structure are needed. Marsupialization is a minimal invasive technique to treat large odontogenic cyst and tumor without damage to adjacent important structures. This study was undertaken to describe three cases of odontogenic cysts and tumors of jaws that were successfully treated with enucleation after marsupialization.

Acute Myelopathy Caused by a Cervical Synovial Cyst

  • Kim, Dong Shin;Yang, Jin Seo;Cho, Yong Jun;Kang, Suk Hyung
    • Journal of Korean Neurosurgical Society
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    • v.56 no.1
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    • pp.55-57
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    • 2014
  • Synovial cysts of the cervical spine, although they occur infrequently, may cause acute radiculopathy or myelopathy. Here, we report a case of a cervical synovial cyst presenting as acute myelopathy after manual stretching. A 68-year-old man presented with gait disturbance, decreased touch senses, and increased sensitivity to pain below T12 level. These symptoms developed after manual stretching 3 days prior. Computed tomography scanning and magnetic resonance imaging revealed a 1-cm, small multilocular cystic lesion in the spinal canal with cord compression at the C7-T1 level. We performed a left partial laminectomy of C7 and T1 using a posterior approach and completely removed the cystic mass. Histological examination of the resected mass revealed fibrous tissue fragments with amorphous materials and granulation tissue compatible with a synovial cyst. The patient's symptoms resolved after surgery. We describe a case of acute myelopathy caused by a cervical synovial cyst that was treated by surgical excision. Although cervical synovial cysts are often associated with degenerative facet joints, clinicians should be aware of the possibility that these cysts can cause acute neurologic symptoms.