• 대한세포병리학회지
• /
• 제6권2호
• /
• pp.163-168
• /
• 1995

Ki-1 positive anaplastic large cell lymphoma is a newly described high-grade lymphoma and is defined by histopathological and immunologic criteria. We experienced a case of systemically involving Ki-1 positive anaplastic large cell lymphoma in a 44 year-old female which initially manifested as pleural effusion. Abdominopelvic CT scan showed the evidence of marked lymphadenopathy in retroperitoneal and both external and inguinal lymph nodes. On cytologic examination of pleural fluid, tumor cells revealed pleomorphic large isolated cells with prominent nucleoli and abundant cytoplasms. The nuclei were large with irregular profiles including some deep invaginations. Also, occasional multilobed/multinucleated and binucleated nuclei were seen. Immunohistochemical examination was performed to differentiate from the undifferentiated adenocarcinoma, Hodgkin's disease, non-Hodgkin's lymphoma and malignant histiocytosis. The neoplastic cells were positive for leukocyte common antigen, CD3, CD30(Ki-1) but negative for cytokeratin, epithelial membrane antigen, and CD15. A histologic diagnosis of Ki-1 positive anaplastic lymphoma was made by biopsies of the inguinal lymph node, polypoid lesions of the stomach and cecum.

• 한국임상수의학회지
• /
• 제33권2호
• /
• pp.142-144
• /
• 2016

We report a case of Escherichia coli septicemia in a 6-year-old male bottlenose dolphin (Tursiops truncatus). Gross lesions included turbid reddish yellow ascites, fibrous adhesions of rectum and peritoneum, multifocal mucosal ulcers of rectum, and systemic petechiae. Multifocal necrosis with bacterial colonies was observed histologically in mucosal membrane of rectum and anus, and also in caudal mesenteric lymph node, inguinal lymph node, tracheobronchial lymph node, tonsil, spleen, liver, and lung. E. coli was isolated in pure culture from multiple organs including blood, spleen, mesenteric lymph node, liver, lung, and ascites. The E. coli was serotype O25. This case was diagnosed as a septicemia caused by E. coli serotype O25 associated with proctitis.

• 대한수의학회지
• /
• 제44권2호
• /
• pp.311-315
• /
• 2004

The detection of lymph node metastasis is an important step in tumor staging and is significant for therapy planning. It has been challenged to yield an appropriate image with diagnostic methods such as Magnetic Resonance (MR) and Computed Tomography (CT). Though CT has been used widely and accessed easily to show internal organs, it can hardly provide difference between lymph node and adjacent vessel or fat tissue. It has been well established that MR can reveal the subtle discrepancy within soft tissue. This study investigated the suitability of MR lymph node imaging without contrast enhancement by comparison of T1-weighted image (T1WI) and T2- weighted image (T2WI) in ten normal rabbits. According to the pulse sequence optimized from preliminary study, T1-weighted spin-echo (repetition time/echo time=400/12 ms) and T-2 weighted fast spin-echo (repetition time/echo time=3500/84 ms) images covering the hind limbs and pelvic region were acquired at 1.5 T. Two radiologists scrupulously evaluated the MR images in consensus. And signal intensity of lymph nodes was compared with that of adjacent fat. Statistical analysis showed that T1-weighted coronal image visualized the lymph nodes (iliac, superficial inguinal and popliteal lymph nodes) quickly and consistently rather than T2-weighted one. Conclusively, T1WI for evaluation of lymph nodes is moderately better than T2WI and appears to have potential for quick and sufficient mapping of the lymph nodes. In addition, this normal MR image of lymph nodes could be applied to further study for the evaluation of lymphatic system in abscess and tumor bearing animal model.

• 대한세포병리학회지
• /
• 제12권1호
• /
• pp.53-56
• /
• 2001

Cytologic features of a case of mantle cell lymphoma is presented, which was obtained by fine needle aspiration cytoloby and confirmed by excisional biopsy of axillary lymph node. A 67-year-old female alleged palpable masses in both axillae for several months. Additional multiple lymphadenopathies were found in the both neck and inguinal areas. The main cytologic feature was carpeting on monotonous slightly atypical small lymphocytes without heterogeneous components. The nuclei of these lymphocytes are slightly larger than benign small lymphocyte and relatively round with some Indentation. Nucleolus was not prominent and no mitosis was found. Their cytoplasm was scanty and cyanophilic in Papanicolaou's stain. The histiocytic cells, which had bland-looking banded nuclei and abundant cytoplasm, corresponding to pink histiocytes were shown. Excisional blopsy of lymph nodes was diagnosed as mantle ceil lymphoma, diffuse type.

• 대한수의학회지
• /
• 제39권2호
• /
• pp.353-358
• /
• 1999

New emerging post weaning multisystemic wasting syndrome (PMWS) threatening swine industry worldwide and investigation of the etiological agent is underway. The porcine circovirus (PCV) consistently identified from PMWS pigs and research result indicate that there is strong relationship between PCV and PMWS. Fauns with PMWS submitted pigs suffered from various PMWS typical signs and necropsy finding showed lymph node anomalies. The PCV DNA was amplified from inguinal lymph node collected from pigs with PMWS. PCV specific primers were successfully amplified PCV DNAs and were able to differentiate PCV type I and II. We have identified noble PCV virus with genetic variation. The virus showed insertion of the nucleic acid at the 5' of the genome but did not have PCR product with primer set corresponding to PCV type II virus.

• 동국한의학연구소논문집
• /
• 제7권1호
• /
• pp.33-41
• /
• 1998

본 연구는 알러지성 접촉피부염(allergic contact dermatitis) 유발 피부 주변 림프절에서의 세포성 면역활성으로 나타나는 면역조직화학적 형태변화를 조사하기 위해 DNCB로 인위적인 알러지성 접촉피부염을 BALB/C계 생쥐의 샅바위부분 피부에서 유발시킨 후 시간 경과에 따른 샅바위 림프절(inguinal lymph node)에서의 T 림프구와 IL-2 수용기의 분포변화를 관찰하였다. 대조군에서는 L3T4(CD4)에 양성반응을 보이는 도움 T 림프구, Ly2(CD8)에 양성반응을 보이는 세포독성 T 림프구 그리고 CD25R에 양성반응을 보이는 IL-2 수용기를 가진 세포는 곁피질(paracortex)과 수질동(medullary sinus)에서 분포하였다. DNCB에 의한 알러지성 접촉피부염 유발후 24시간부터 도움 T 림프군, 세포독성 T 림프구 그리고 IL-2 수용기를 가진 세포가 곁피질과 수질동에서 증가하기 시작하여 48시간에 이르러서는 그 분포와 양성반응성이 최고에 달했다. 48시간의 이러한 분포는 수질동에서 잘 나타났으며, 특히 세포독성 T 림프구가 많은 증가를 보였다. 72시간에 이르러서는 양성반응세포가 서서히 감소되는 것으로 나타났지만, 대조군에 비해서는 여전히 증가된 분포양상으로 나타났다. 이상의 결과로 미루어보아 DNCB에 의한 접촉성 피부염 유발시 림프절에서는 도움 T림프구의 분열 활성 증대로 인한 IL-2 생성 분비 증가의 결과 세포독성 T 림프구의 분열 활성을 유도하는 일련의 세포성 면역연쇄반응의 활성이 일어나게 된다. 이러한 세포성 면역연쇄반응의 활성은 주변 피부에서 일어나는 알러지성 접촉피부염로 인한 피부손상을 주도하는 것으로 사료된다.

• Radiation Oncology Journal
• /
• 제26권1호
• /
• pp.1-9
• /
• 2008

목적: 외음부 암환자에서 국소영역 치료실패에 대한 수술 후 방사선치료의 영향을 평가하고 임상적으로 림프절이 전이가 없는 환자들에서 서혜부 림프절에 대한 치료방침을 결정해 보고자 하였다. 대상 및 방법: 1979년 10월부터 2004년 6월까지 서울대학교병원에서 일차성 외음부 암으로 치료를 받은 환자 66명에 대해 후향적 분석을 시행하였다. 이들 중에서 원격전이가 있는 2명, 고식적 목적으로 치료를 받은 6명, 이전에 골반부 위 방사선 치료의 병력이 있는 3명, 추적관찰이 탈락된 4명, 의무기록이 불충분한 1명을 포함하여 16명의 환자들은 이번 분석에서 제외되었다. 50 명 중에 수술만 받은 환자가 35명, 수술과 방사선 치료를 받은 환자가 10명, 방사선 치료만을 받은 환자가 5명이었다. 결과: 5년 전체 생존율과 무병 생존율은 각각 91%, 78%였다. 12명(26%)에서 치료 실패를 보였으며, 국소 실패가 8명, 영역림프절 전이가 3명, 원격 전이가 1명이었다. 수술과 방사선치료를 같이 받은 환자들이 수술만을 받은 환자들보다 위험요인을 더 많이 가지고 있었지만, 무병 생존율은 두 집단에서 통계적으로 유의한 차이를 보이지 않았다(5년 무병 생존율 78% vs. 83%, p=0.66). 잠재성 림프절 전이의 빈도는 10%였다. 임상적으로 림프절 전이가 없었던 31명의 환자들 중에서 10명은 서혜부 림프절 절제술을 받지 않았지만, 이들 중에서 영역림프절 전이를 경험한 사람은 아무도 없었다. 결론: 치료실패의 위험요인을 가진 외음부 암자들에게 수술 후 방사선 치료는 잠재적인 이점을 가지고 있다. 임상적으로 림프절 전이가 없는 위험도가 낮은 환자들에게는 서혜부 림프절 절제술을 하지 않는 것이나 서혜부 림프절에 대해 예방적 방사선치료를 하는 것에 대해서 고려해 볼 수 있겠다.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제20권2호
• /
• pp.97-100
• /
• 1998

Systemic lupus erythematosus is a severe cutaneous-systemic disorder of unknown etiology, It is represented with erythematous patches on the face in a so-called butterfly distribution, and characteristically classified as an autoimmune disease with antinuclear antibodies. The autoimmune diseases such as systemic lupus erythematosus, $Sj{\ddot{o}}gren$ syndrome, rheumatoid arthritis have been associated with lymphoid malignancy - leukemia, malignant lymphoma - which could involve various organs(spleen, liver, brain, mediastinal lymph node, supraclavicular lymph node, inguinal lymph node, cervical lymph node etc.). Many authors have studied about the association of systemic lupus erythematosus and malignant lymphoma, but exact etiology is still unknown. A common viral etioloty for systemic lupus erythematosus has been suggested since virus-like particles have been found in the glomerular endothelium of patients with systemic lupus erythematosus. These oncogenic viruses may be responsible for the higher frequency of malignant lymphoma in patients with systemic lupus erythematosus. In the other theory, the causes of malignant lymphoma are the defect of immune system due to systemic lupus erythematosus and the long-term use of therapeutics for treatment of systemic lupus erythematosus. When the cellular immune system(delayed hypersensitivity) is impaired by immunosuppressive drugs, it is likely that the body is no longer able to recognize and reject malignant cells as they arise; they continue to grow and divide unhindered. The impairment of the cellular immune system may allow growth of oncogenic virus or the survival of neoplatic tissues. 47-year old female patient treated systemic lupus erythematosus with steroid and immunosuppressive drugs for 5 years visited to our hospital due to elevated mass on left upper anterior maxilla area. By performing biopsy, we diagnosed this lesion as malignant lymphoma and referred to oncologist for chemotherapy. So we report a case of malignant lymphoma due to systemic lupus erythematosus with review of literatures.

• 대한수의학회지
• /
• 제53권4호
• /
• pp.245-251
• /
• 2013

Porcine circovirus type 2 (PCV2) and porcine reproductive and respiratory syndrome virus (PRRSV) have been suspected to have immunosuppressive effects on pigs. To investigate the correlation between these virus infection and the lesions of lymph nodes including sub-mandibular and inguinal lymph node, 44 pigs (PCV2 single, n = 14; PRRSV single, n = 10; PCV2/PRRSV, n = 14; negative control, n = 6) were examined by histopathology and immunohistochemistry. Histopathologically, granulomatous lymphadenitis characterized by lymphoid depletion with histiocytic cells infiltration was observed in PCV-2 single and PCV-2/PRRSV group. Immunohistochemically, there were significant reduction of B and T lymphocytes in lymph nodes of these groups, while the number of macrophages was increased. In only PRRSV infected group, germinal center hypertrophy and lymphoid necrosis were observed. Immunohistochemically, the number of CD3+ T lymphocytes was slightly increased. Severe lymphocytic depletion in PCV-2 infection-related lymph nodes might be associated with producing immunocompromised state in pig. Comparing with PCV-2 infected group, PRRSV produced minor effects on the changes in immune cell population in the lymph nodes of pigs. PRRSV may increase susceptibility of the disease in pigs by disruption of the first defense lines in target organs, such as the alveolar macrophages in lungs.

• 대한세포병리학회지
• /
• 제10권2호
• /
• pp.185-189
• /
• 1999

The diagnosis of peripheral T cell lymphoma is difficult due to the varying size and shape of the neoplastic lymphoid cells and the frequent admixture of nonneoplastic mature lymphyocytes, histiocytes, eosinophils, and plasma cells. We report a case of peripheral T cell lymphoma, lymphoepithelioid ceil type, which was difficult to differentiate from tuberculous lymphadenitis due to the aggregates of epithelioid histlocytes mimicking granuloma and the past history of pulmonary tuberculosis. Fine needle aspiration cytology of the inguinal lymph node in a 63-year-old male was characterized by hypercellular aspirates composed of a mixture of small and intermediate-size lymphoid cells and large lymphoid cells with background of confluent epithelioid histiocytes. The neoplastic lymphocytes demonstrated significant nuclear irregularity with protrusion and indentations of the nuclear membrane, prominent nucleoli, and frequent mitotic figures. The diagnosis of peripheral T cell lymphoma was confirmed by histological and immunohistochemical studios.