The Experts below are selected from a list of 2733 Experts worldwide ranked by ideXlab platform
Hiroshi Seno - One of the best experts on this subject based on the ideXlab platform.
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Pulmonary Actinomycosis mimicking a lung metastasis from esophageal cancer; a case report
BMC Pulmonary Medicine, 2018Co-Authors: Munemasa Nagao, Akihisa Fukuda, Takeshi Matsumura, Toshiyuki Kimura, Hiroshi SenoAbstract:Background Actinomycosis is a rare bacterial infection caused by Actinomyces . The symptom of Actinomycosis is nonspecific and radiological images present as a slow-progressive mass lesion similarly to malignancies. Thus, it is difficult to distinguish pulmonary Actinomycosis from malignancies. Case presentation A 74-year-old male who had esophageal cancer and a pulmonary mass that was positive for ^18F–fluorodeoxyglucose positron emission tomography/computed tomography was initially diagnosed with esophageal cancer with a lung metastasis because he was asymptomatic. However, aspiration of pleural effusion revealed that the pulmonary lesion was Actinomycosis. Conclusion We present a case of pulmonary Actinomycosis mimicking a lung metastasis from esophageal cancer. Diagnosis of asymptomatic pulmonary Actinomycosis is difficult, and needle aspiration could be useful for a definitive diagnosis of pulmonary Actinomycosis.
Eun Jung Kong - One of the best experts on this subject based on the ideXlab platform.
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primary hepatic Actinomycosis mimicking hepatic malignancy with metastatic lymph nodes by f 18 fdg pet ct
Nuclear Medicine and Molecular Imaging, 2016Co-Authors: Eun Jung KongAbstract:Actinomycosis is a rare infection caused by gram-positive, anaerobic bacteria. It commonly manifests as a cervicofacial disease, but is also encountered as thoracic and abdominopelvic forms [1]. Hepatic involvement is usually secondary to abdominal Actinomycosis infection. Primary hepatic Actinomycosis accounts for 5 % of all cases of Actinomycosis [2] and can be considered when there is no sign of primary involvement of the abdominal area or elsewhere in the body [3]. Symptom onset is typically subacute and the disease follows a chronic and indolent course. Usual clinical findings include fever, right upper quadrant pain, and weight loss [4]. Actinomycosis may appear as a solid enhancing mass on CT images [3–5], and hepatic Actinomycosis may mimic a primary or metastatic tumor clinically or radiologically [3, 6]. These lesions are called inflammatory pseudotumors and cannot be differentiated from malignant tumors by radiological examination alone [3]. Definitive diagnosis is based on the demonstration of sulfur granules in a biopsy specimen or of aspirated pus and Gram-stained smears of anaerobic cultures [3, 5]. A 27-year-old man was admitted with a 3-day history of fever and weight loss (14 kg/ 2 months) (Fig. 1). Laboratory tests showed mild anemia; hemoglobin 119 g/L, elevated white blood cell count of 23,060/mm (83.1 %), AST 33 U/L, ALT 45 U/L, and γ-GT 155 U/L. CA 19–9 was 3.4 μ/mL and CEA was 1.0 ng/mL.
Munemasa Nagao - One of the best experts on this subject based on the ideXlab platform.
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Pulmonary Actinomycosis mimicking a lung metastasis from esophageal cancer; a case report
BMC Pulmonary Medicine, 2018Co-Authors: Munemasa Nagao, Akihisa Fukuda, Takeshi Matsumura, Toshiyuki Kimura, Hiroshi SenoAbstract:Background Actinomycosis is a rare bacterial infection caused by Actinomyces . The symptom of Actinomycosis is nonspecific and radiological images present as a slow-progressive mass lesion similarly to malignancies. Thus, it is difficult to distinguish pulmonary Actinomycosis from malignancies. Case presentation A 74-year-old male who had esophageal cancer and a pulmonary mass that was positive for ^18F–fluorodeoxyglucose positron emission tomography/computed tomography was initially diagnosed with esophageal cancer with a lung metastasis because he was asymptomatic. However, aspiration of pleural effusion revealed that the pulmonary lesion was Actinomycosis. Conclusion We present a case of pulmonary Actinomycosis mimicking a lung metastasis from esophageal cancer. Diagnosis of asymptomatic pulmonary Actinomycosis is difficult, and needle aspiration could be useful for a definitive diagnosis of pulmonary Actinomycosis.
O N Sivrikoz - One of the best experts on this subject based on the ideXlab platform.
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primary abdominal wall Actinomycosis
Hernia, 2015Co-Authors: B Karaca, H Tarakci, E Tumer, S Calik, N Sen, O N SivrikozAbstract:Actinomycosis is a progressive, chronic, granulomatous and suppurative disease caused by different types of actinomyces. Instead of chronic suppurative disease, sinus formation can also be seen. Cervicofascial, abdominal and thoracal involvement can occur. Abdominal wall Actinomycosis is an infrequent clinical form. Isolated anterior wall Actinomycosis is a very rare form of the disease. This is an interventional case report. A 62-year-old female patient with abdominal mass was referred to hospital. She had diabetes mellitus. On the examination she had abdominal tenderness. The computerized tomography revealed an irregular density sized 6.5 × 5 × 3.5 cm in the umbilical area. Surgical debridement and incisional biopsy performed. The diagnosis is confirmed by histopathological examination. The patient received parenteral crystalline penicillin treatment and recovered. Physicians should consider abdominal wall Actinomycosis in the cases of abdominal masses especially in immunosuppressive patients.
Z Benari - One of the best experts on this subject based on the ideXlab platform.
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abdominal Actinomycosis masquerading as colon cancer in a liver transplant recipient
Transplant Infectious Disease, 2012Co-Authors: I Laish, O Benjaminov, S Morgenstern, F Greif, Z BenariAbstract:Infections in transplant recipients are associated with high morbidity and mortality, making their early recognition and treatment particularly important. Abdominal Actinomycosis is a rare clinical entity and difficult to diagnose because of its various and nonspecific features. We describe a 57-year-old patient who presented with abdominal Actinomycosis simulating colon cancer 6 years after liver transplantation. The main symptom was abdominal pain. Abdominal computed tomography and colonoscopy revealed an intraluminal 4.5 cm mass in the right colon, raising suspicions of a colonic malignancy and leading to surgical intervention. The postoperative pathologic study showed sulfur granules in the resected specimen compatible with abdominal Actinomycosis. No signs of recurrence were seen throughout the 6-month follow-up. The literature on Actinomycosis infections in immune-compromised hosts is reviewed. This presentation of Actinomycosis in a liver transplant recipient has not been described previously, to our knowledge.
