• Title/Summary/Keyword: Cellularity

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Acute Lymphoblastic Leukemia with Bone Marrow Infiltration and Hypoplastic Anemia in a German Shepherd (German Shepherd에서 골수침윤과 재생불량성빈혈을 동반한 급성림프모구성백혈병 1증례)

  • 이창우;신남식;최윤주;정동희;권오경;임채형
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.247-251
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    • 2000
  • A male German Shepherd dog, $2{\frac{1}{2}}$years of age, was admitted with sudden anemia, weakness, hyperpyrexia, anorexia and lethargy. The patient showed hypoplastic anemia, thrombocytopenia, absolute and relative lymphocytosis, absolute and relative granulocytopenia, hypoalbuminemia, slight hepatic disorder, slight azotemia, hematuria and proteinuria by the screening examination. The bone marrow aspiration smear showed high cellularity, severs infiltration of lymphoblasts and prolymphocytes, and mitotic figures of lymphoid cells. The liver aspiration smear demonstrated infiltration of lymphoblasts. Acute lymphoblastic leukemia was diagnosed as none of the superficial lymph nodes showed enlargement and marked functional disorder of important organs other than the liver was not found. The patient was treated with vincristine, cyclophophamide, predniosolone for chemotherapy and blood transfusion and either ampicillin or cefoperazone for supportive treatment. But the patient did not show marked remission and died 9 days after the start of the chemptherapy. The necropsy was not permitted.

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Experimental Study on Role of Syngas Addition on Flame Propagation and Stability in DME-Air Premixed Flames (디메틸에테르-공기 예혼합화염의 화염전파와 화염안정성에 있어서 합성가스의 첨가효과에 관한 실험적 연구)

  • Song, Wonsik;Park, Jeong;Gwon, O-Bung;Yun, Jin-Han;Gil, Sang-In;Kim, Tae-Hyeong;Kim, Yeong-Ju
    • 한국연소학회:학술대회논문집
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    • 2012.11a
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    • pp.207-209
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    • 2012
  • The present experiment was conducted to measure the unstretched laminar burning velocity and cellular instability of DME-air and syngas (in steps of 25 %) added DME-air premixed flames using propagating spherical flame. The experimental results were discussed in two focuses which are effects of syngas fraction and initial pressure on Markstein length, unstretched laminar burning velocities, and cellular instability. The flame instability was evaluated by the Markstein length and cellularity which is caused by diffusional-thermal instability and hydrodynamic instability.

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Combination Therapy of Prednisolone and Toceranib Phosphate in a Dog with Malignant Metastatic Insulinoma

  • Kang, Yeo-Lim;Park, Hee-Myung;Kang, Min-Hee
    • Journal of Veterinary Clinics
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    • v.35 no.5
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    • pp.211-214
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    • 2018
  • A 14-year-old intact female Yorkshire terrier was presented with a 2-month history of shivering, intermittent pelvic limb weakness and collapse. Biochemical abnormalities revealed inappropriately increased serum insulin concentration with persistent hypoglycemia. Abdominal ultrasound revealed multiple various sized nodules in liver and fine-needle aspirates of the nodule showed typical neuroendocrine cells with high cellularity. Computed tomography (CT) revealed well-defined hyperattenuating mass in the right pancreatic lobe with homogenous enhancement. CT findings were consistent with a pancreatic tumor with malignant metastasis. Treatment was initiated with low-dose prednisolone and toceranib phosphate. The dog was maintained stable with no more progression of clinical signs and it is worth to try toceranib phosphate in a dog with metastatic insulinoma for improving the quality of life.

Fine Needle Aspiration Cytology of Endodermal Sinus Tumor of the Ovary - A Case Report - (난소 내배엽동 종양의 세침흡인 세포학적 소견 - 1예 보고 -)

  • Kim, Jin-Man;Kang, Dae-Young
    • The Korean Journal of Cytopathology
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    • v.6 no.1
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    • pp.54-57
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    • 1995
  • We report a case of fine needle aspiration cytology of endodermal sinus tumor of the ovary. A 13-year-old girl complained of abdominal mass and pain. The abdominal sonography revealed a well-demarcated huge mass, which was solid and multiseptated. Percutaneous fine needle aspiration was performed from the mass. The smears revealed moderate cellularity, which was arranged in sheets or clumps of pleomorphic malignant cells on mucoid background The valuable characteristic features of tumor cells were papillary configuration, vacuolated cytoplasm and intracellular and extracellular hyaline globules. The diagnosis was confirmed later by histologic study of surgical resection of the specimen.

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Characteristics of Hodgkin Lymphoma in a Defined Group of Iranian Pediatric Patients

  • Baharvand, Maryam;Mortazavi, Hamed
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.13
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    • pp.5167-5169
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    • 2014
  • This study was conducted to describe the characteristics of Hodgkin lymphoma in Iranian children. In a referral center for pediatric oncology (Mofid Hospital) in Tehran, patient data over a 10-year period were retrieved and recorded accordingly. Among 82 cases, 73.2% were male, 26.8% were female, and 70.7% were 5-9 years old. About 40% of patients were in stage III and 42.7% had systemic signs. Cervical nodes were commonly involved (91.5%). The most frequent histological subtype was mixed cellularity. The main hematological features were anemia (47.6%), lymphopenia (20.7%), and eosinophilia (8.7%). Survival rate was 72%, and 8.4% of patients were deceased. A 3% recurrence rate was observed in our patients. A significant relationship was found between the stage of disease and systemic signs (P<0.0005, ${\chi}^2$). Despite diagnosis of Hodgkin lymphoma in many children in Iran being made in higher stages, the mortality rate is relatively low.

A STUDY OF THE MALIGNANT FIBROUS HISTIOCYTOMA (악성 섬유성 조직구종에 관한 연구)

  • Kim Young-Jin;Oh Phill-Gyo;Choi Eui-Hwan
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
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    • v.24 no.2
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    • pp.451-457
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    • 1994
  • Malignant fibrous histiocytoma(MFH) is relatively rare in the oro-maxillofacial region, particularly in the oral cavity. MFH usually arise in the extremities, the thigh being the most common site. The incidence of malignant fibrous histiocytoma in bones is rather low compared with that in soft tissues. MFH is predominant in the 40s and 50s. Histologically, the lesion are said to show high cellularity with fibrous stroma, cellular and nuclear pleomorphism, an admixture of fibroblast-like spindle cells which tend to be arranged in whorls or cartwheel or storiform patterns, rounded mononuclear cells and multinucleated giant cells. The cells frequently have abundant eosinophilic cytoplasm which has a foamy or vesicular appearance. Treatment consists of varying combinations of radiation therapy, chemotherapy, and surgery. We have observed a case of malignant fibrous histiocytoma occured in the right maxilla of 32-year-old woman.

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Fine Needle Aspiration Cytology of Proliferative Fasciitis - A Case Report- (증식성 근막염의 세침흡인 세포학적 소견 - 1 예 보고-)

  • Jo, Hyang-Jeong;Han, Won-Cheol;Park, Won-Cheol;Yun, Ki-Jung
    • The Korean Journal of Cytopathology
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    • v.13 no.1
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    • pp.47-50
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    • 2002
  • Fine needle aspiration cytology (FNAC) is an easy convenient non-invasive method in the diagnosis of superficial palpable masses. The cytologic findings by FNAC of reactive and neoplastic lesions in various organs including breast, lymph node, thyroid, salivary gland, etc., have been described, but, those of soft tissue lesions including proliferative fasciitis are relatively rare to find. We recently experienced a case of FNAC of proliferative fasciitis in the left back of a 72-year-old male. The FNAC smears were scant in cellularity and contained large cells with abundant basophilic cytoplasm, one to two nuclei lying at the periphery, and prominent nucleoli that resemble ganglion cells.

Cytologic Analysis of Microinvasive Squamous Cell Carcinoma of the Uterine Cervix (자궁경부 미소침윤성 편평세포암종의 세포학적 분석)

  • Kim, Eun-Kyung;Kim, Yee-Jeong;Park, Jong-Sook;Kim, Hy-Sook
    • The Korean Journal of Cytopathology
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    • v.5 no.2
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    • pp.99-105
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    • 1994
  • We studied cervical cytology of 175 cases of histologically confirmed microinvasive squamous cell carcinoma of the uterine cervix in Cheil General Hospital from 1991 to 1993. Excluding 32 cases of insufficient smear, 143 cases were reviewed in view of background, cellularity, smear pattern, nuclear chromatin and presence of nucleoli. The characteristic findings of microinvasive carcinoma were syncytia and/or individual tumor cells in the focally necrotic inflammatory background. Nuclear chromatin was clear or fine. Nucleoli were observed in 55%. The prediction rate of microinvasive carcinoma was 74%. There is no significant relationship between the cellular features and depth of invasion.

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Imprint Cytology of a Desmoplastic Small Round Cell Tumor -A Case Report- (결합조직형성소원형세포종양의 압착도말 세포학적 소견 -1예 보고-)

  • Kim, Yong-Jin;Kim, Jae-Hwang;Choi, Joon-Hyuk
    • The Korean Journal of Cytopathology
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    • v.18 no.1
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    • pp.81-86
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    • 2007
  • Desmoplastic small round cell tumor (DSRCT) is a rare malignant mesenchymal neoplasm. It mainly involves the abdominal or pelvic peritoneum of male adolescents. We report here the imprint cytologic features of a case of DSRCT occurring in the intraabdominal cavity of a 21-year-old man. A microscopic examination showed moderate cellularity. The tumor cells were singly arranged and arranged in clusters. The cells had round to oval nuclei with finely granular chromatin, inconspicuous nucleoli and scanty cytoplasm. Some tumor cells showed nuclear molding, and some cells had an epitheloid appearance with a large amount of lightly eosinophilic cytoplasm. A rosette-like pattern was present. Spindle-shaped, fibroblastic stromal cells were occasionally found. The tumor cells were immunoreactive for the markers cytokeratin (AE1/AE3), epithelial membrane antigen (EMA), desmin, vimentin and neuron specific enolase (NSE).

A Possible Physiological Role of Caspase-11 During Germinal Center Reaction

  • Kang, Shin-Jung
    • Animal cells and systems
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    • v.12 no.3
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    • pp.127-136
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    • 2008
  • Caspase-11 has been known as a dual regulator of cytokine maturation and apoptosis. Although the role of caspase-11 under pathological conditions has been well documented, its physiological role has not been studied much. In the present study, we investigated a possible physiological function of caspase-11 during immune response. In the absence of caspase-11, immunized spleen displayed increased cellularity and abnormal germinal center structure with disrupted microarchitecture. The rate of cell proliferation and apoptosis in the immunized spleen was not changed in the caspase-11-deficient mice. Furthermore, the caspase-11-deficient peritoneal macrophages showed normal phagocytotic activity. However, caspase-11-/-splenocytes and macrophages showed defective migrating capacity. The dysregulation of cell migration did not seem to be mediated by caspase-3, interleukin-$1{\alpha}$ or interleukin-$1{\beta}$ which acts downstream of caspase-11. These results suggest that a direct regulation of immune cell migration by caspase-11 is critical for the formation of germinal center microarchitecture during immune response. However, humoral immunity in the caspase-11-deficient mice was normal, suggesting the formation of germinal center structure is not essential for the affinity maturation of the antibodies.