• Korean Journal of Veterinary Research
• /
• v.47 no.4
• /
• pp.443-447
• /
• 2007

A 7-year-old, female snow goose (Anser caerulescens hyperboreus) with history of decreased activity for 2 month died in Daejeon Zoo Land in September 2006. At necropsy, granulomatous pneumonia and hepatomegaly with multiple cysts were observed. Small masses were found in the spleen. Microscopically, fibrinous pneumonia distributed in most of the lung lobe with pulmonary edema and congestion. Especially, granulomatous inflammation with numerous multinucleated giant cells was observed around the dilated bronchi. To confirm the diagnosis, acid-fast (Ziehl-Neelsen method) and periodic acid-Schiff (PAS) staining was performed. Acid-fast staining showed red bacterial colony indicating tuberculosis. PAS staining was also positive enough to diagnose aspergillus spp. co-infection that was an opportunistic fungi occurring in immuno-compromised animals. Based on the above results, we confirmed that the case submitted was diagnosed as avian tuberculosis.

• Journal of Veterinary Clinics
• /
• v.29 no.6
• /
• pp.483-487
• /
• 2012

Primary and metastatic tumors involving the heart are relatively uncommon in dogs. In this study, we provide the echocardiographic diagnosis of intracardiac masses in 2 Yorksire terrier dogs. In the first case, the mass was attached between ascending aorta and pulmonary artery and caused moderate aortic regurgitation and moderate left ventricular dilation. The case was graded into ISACHC II heart failure. The dog was treated with common cardiac medications (i.e. furosemide, enalapril, pimobendan) and oral chemotherapeutic agent (i.e. lomustine). In the second case, the mass was occupied 2/3 of the left atrium and caused marked dilation of left atrium and severe mitral regurgitation (~5 m/s), but not severe congestive heart failure (ISACHC Ib). Although the nature of progression of the mass was likely to cardiac myxoma, the biopsy was not performed due to the owner's refusal. The dog was currently treated with cardiac medications (i.e. ramipril, clopidogrel) and bronchodilator (i.e. aminophylline). Those two dogs are still survived and are currently regularly checked.

• Tuberculosis and Respiratory Diseases
• /
• v.53 no.2
• /
• pp.196-201
• /
• 2002

Malignant melanoma is a highly malignant form of cutaneous cancer derived from melanocytes. The lesion frequently metastasizes to the lymph nodes, lung, liver and bone. However, an endobronchial metastasis and a primary malignant. melanoma of the lung are quite rare. We report a case of an unknown primary malignant melanoma with a pulmonary and endobronchial metastasis in a 34 years old male. He complained of coughing and black-colored sputum. Abnormal skin and mucosal lesions were not found during a physical examination. A chest X-ray revealed multiple nodular masses in both lung fields. A flexible bronchoscopy showed two yellowish small nodules at the entry of left lower bronchus. Vimentin, the S-100 protein, and HMB-45 stain positive melanoma cells were detected at the bronchoscopic biopsy specimen.

• Korean Journal of Head & Neck Oncology
• /
• v.18 no.2
• /
• pp.192-196
• /
• 2002

Objectives: Tuberculous cervical lymphadenitis is a frequently recurring disease when treated with chemotherapy alone without enough surgical removal of the tuberculous lesions. Authors reviewed retrospectively the treatment result of antituberculous chemotherapy following almost complete surgical removal of tuberculous foci in the neck. Materials and Methods: A retrospective clinical review and analysis was made in 127 cases of tuberculous cervical lymphadenitis patients treated during the past 10 years from 1989 to 1998 at the Department of General Surgery, Inje University Paik Hospital, Pusan. Results: 1) The peak age incidence was the 2nd decade(37.8%), and female was predominated over male by 2.3:1. 2) The time interval from the onset of symptoms to the first visit was less than 3 months in 60.6% of the patient. 3) The location of lymphadenitis was the right neck in 60%, the left neck 34%, and bilateral in 6% of the patient. 4) Signs on the first visit showed solitary masses(60%), abscess(25%) and both mixed(15%). 5) 25 patients(19%) had present or past history of tuberculosis; pulmonary tuberculosis 12 patients, tuberculous lymphadenitis 10 patients, and others 3 patients. 6) Locations of tuberculous lymphadenitis were posterior cervical triangle 70, supraclavicular 51, submandibular 19, anterior triangle 16 and others 4 cases. 7) The principle of treatment of cervical lymphadenitis was surgical management followed by chemotherapy. Surgical procedures were excision(s), curettage and drainage of abscess, combination of both, and biopsy in 60%, 22%, 12% and 6% respectively. Mean duration of antituberculous medication was 9 months after surgery. 8) The rate of recurrent and persistent tuberculous lymphadenitis was 9% in 4 years follow up. Conclusion: Tuberculous cervical lymphadenitis is a frequently recurring disease in young adult when only antituberculous chemotherapy was employed without almost complete removal of the lesions. It is considered that antituberculous medications for 6-9 months after removing the foci at a maximal extent by surgical excision and curettage will reduce the recurrence rate or persistence of tuberculous lymphadenitis.

• Tuberculosis and Respiratory Diseases
• /
• v.47 no.1
• /
• pp.117-122
• /
• 1999

Primary germ cell tumors of the mediastinum are rare, accounting 1-5 % among all germ cell tumors and 10% of all neoplasms in this area. Approximately 85 % of these tumors occur in men with a mean age 29 years. 'These tumors are mainly found in the anterior mediastinum and appear grossly as large lobulated masses. They are frequently invasive at the time of diagnosis and almost 90% of patients are symptomatic. Primary nonseminomatous germ cell tumor arising in the posterior mediastinum is very rare. We report a case of 37-year old male arising from the posterior mediastinum. Serum tumors markers including alpha-fetoprotein and $\beta$-hCG which are usually elevated in germ cell tumor were not elevated. He was found to have a primary mediastinal embryonal carcinoma with pulmonary metastasis at open exploration. He was treated with debulking surgery and cisplatin-based chemotherapy, died of sepsis after 15 months postoperatively.

• Journal of Chest Surgery
• /
• v.29 no.12
• /
• pp.1381-1384
• /
• 1996

Thymoma Is an anterior mediastinal tumor, arising from the thymus, but occasionally has ectopic focus such as neck, trachea, thyroid, pulmonary hilum, lung parenchyme and pleura. Forty-two year old male patient was admitted due to progressive development of shortness of breath in 4 months. He had a history of exposure to asbestos for About 10 years duration In recent 15 years. Radiologically, multiple pleural masses were seen rom apex to diaphrAgm, with no evidence of anterior mediastinal mass,with fluid in right pleural cavity. Closed thoracotomy drainage with open biopsy were performed. Effusion cell block showed many T cell marker positive Lymphocytes & some epithelial cells compatible with thymoma, and the tissue also showed cortical type thymoma. Pleuropneumonectomy and thymectomy followed by 60 Gy radiation therapy were done and the patient is well 8 months postoperatively. The pleura is markedly thickened by the invasion of thymoma and the interstitial space of the lung tissue,but the normal appearance of thymus was present in remote area (Masaoka classification IVa). We report a case of ectopic invasive thymoma arising from the right pleura with intact thymus.

• Journal of the Korean Society of Radiology
• /
• v.82 no.4
• /
• pp.826-837
• /
• 2021

Immunoglobulin G4-related disease (IgG4-RD) is a chronic inflammatory condition involving multiple organs, including the salivary or lacrimal glands, orbit, pancreas, bile duct, liver, kidney, retroperitoneum, aorta, lung, and lymph nodes. It is histologically characterized by tissue infiltration with lymphocytes and IgG4-secreting plasma cells, storiform fibrosis, and obliterative phlebitis. In the thoracic involvement of IgG4-RD, mediastinal lymphadenopathy and perilymphangitic interstitial thickening of the lung are the most common findings. Peribronchovascular and septal thickening and paravertebral band-like soft tissue are characteristic findings of IgG4-RD. Other findings include pulmonary nodules or masses, ground-glass opacity, alveolar interstitial thickening, pleural effusion or thickening, mass in the chest wall or mediastinum, and arteritis involving the aorta and coronary artery. Radiologic differential diagnosis of various malignancies, infections, and inflammatory conditions is needed. In this review, we describe the imaging findings of IgG4-RD and the radiologic differential diagnoses in the thorax.

• Journal of the Korean Society of Radiology
• /
• v.84 no.6
• /
• pp.1391-1396
• /
• 2023

Malignant lymphoma has various pulmonary manifestations on chest CT, including nodules, masses, areas of consolidation, and ground-glass opacity. These presentations can pose a diagnostic challenge, as they mimic other disease patterns. Herein, we report a case of diffuse large B-cell lymphoma (DLBCL) manifesting as miliary nodules in a 67-year-old male initially presenting with dyspnea and fever. Radiologic findings included diffuse, bilateral, multiple tiny nodules consistent with metastasis, miliary tuberculosis, and fungal infection. However, further investigations, including laboratory tests, imaging, and biopsies, led to the diagnosis of DLBCL involving the lungs. Herein we reported a rare case of lymphoma involvement of the lung presenting as miliary nodules. Accurate diagnosis relies on a comprehensive evaluation of the clinical history, physical features, laboratory test results, and imaging findings.

• Journal of the Korean Society of Radiology
• /
• v.85 no.5
• /
• pp.948-953
• /
• 2024

Necrotizing sarcoid granulomatosis (NSG), now referred to as "sarcoidosis with NSG pattern," is an uncommon variant of sarcoidosis. NSG is characterized by a trio of features: sarcoid granulomas, vasculitis, and extensive areas of necrosis. Symptoms can include cough, fever, chest pain, and dyspnea, typically presenting as either solitary or multiple lung nodules or masses. In this report, we describe a case of NSG accompanied by a persistent low-grade fever. Unlike the dominant presentation of NSG with single or multiple nodules, our case demonstrated diffuse micronodules with combined perilymphatic and random distribution on CT. Histological examination revealed widespread necrotizing granulomas surrounded by anthracotic pigmentation, alongside necrosis and vasculitis, diverging from the classic presentation of sarcoidosis. The diagnosis of NSG was established through a multidisciplinary discussion. The patient was administered oral prednisolone that led to noticeable clinical and radiological improvement within three months.

• Tuberculosis and Respiratory Diseases
• /
• v.44 no.5
• /
• pp.1011-1018
• /
• 1997

Background : To evaluate how efficaciously and safely we can make transthoracic lung biopsy with an 18-gauge automated biopsy device. Methods : We performed 130 transthoracic needle biopsies including 16 repeat biopsies in 114 patients with a pulmonary mass using an l8-gauge biopsy device (ASAP 18, Microvasive-. Eighty-three biopsies were performed by an experienced radiologist and 47 by several less experienced radiologists. All biopsies were guided by biplane fluoroscopy. Results : We successfully obtained sufficient tissue(>2-mm in the length) in 128(985) of 130 biopsies. Biopsy provided the specific diagnosis in 97 (85%) of 114 patients including 78 (88%) of 89 patients with a malignant tumor and 19 (90%) of 21 patients with a benign condition. The diagnosis could not be made in the remaining four patients. Of interest to note was the superb capability (74/74) of biopsy to make a distinction between small cell carcinoma and non-small cell carcinoma. There was no significant difference in the diagnostic yields between the experienced and less experienced radiologists. Of the total 130 biopsies, pneumothorax appeared in 13 (10%), among which treatment was required in 2 (2%), Mild, self-limiting hemoptysis was nod in seven (5%), but in no case was the treatment required. Conclusion : We conclude transthoracic lung biopsy with an 18-gauge automated device is an effective procedure for the specific diagnosis of benign and malignant lung disease. It is safe with the complication rate comparable to that of fine-needle aspiration biopsy as well.