Abdominal Actinomycosis

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Z Benari - One of the best experts on this subject based on the ideXlab platform.

  • Abdominal Actinomycosis masquerading as colon cancer in a liver transplant recipient
    Transplant Infectious Disease, 2012
    Co-Authors: I Laish, O Benjaminov, S Morgenstern, F Greif, Z Benari
    Abstract:

    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.

P J Kingma - One of the best experts on this subject based on the ideXlab platform.

D R Jeyarajah - One of the best experts on this subject based on the ideXlab platform.

  • rare presentation of Actinomycosis as an Abdominal mass report of a case
    Diseases of The Colon & Rectum, 2000
    Co-Authors: P Meyer, Ohwofiemu E Nwariaku, Robert N Mcclelland, D Gibbons, Fredrick S Leach, Arthur I Sagalowsky, Clifford Simmang, D R Jeyarajah
    Abstract:

    PURPOSE: The purpose of this article was to report an unusual presentation of Abdominal Actinomycosis masquerading as a tumor. METHODS: The patient was a 54-year-old male who presented with vague Abdominal discomfort and a palpable left lower quadrant mass defined on CT scan. Multiple intraoperative core biopsies were nondiagnostic, and he underwent en bloc resection of the mass and adjacent organs for a presumed tumor. RESULTS: Examination of tissue from deep within the excised specimen revealed sulfur granules diagnostic for Actinomycosis. CONCLUSION: Abdominal Actinomycosis is an extremely rare infection that can mimic multiple disease processes and requires accurate diagnosis for successful therapy. This novel presentation and a review of the literature are reported.

Eun Jung Kong - One of the best experts on this subject based on the ideXlab platform.

  • primary hepatic Actinomycosis mimicking hepatic malignancy with metastatic lymph nodes by f 18 fdg pet ct
    Nuclear Medicine and Molecular Imaging, 2016
    Co-Authors: Eun Jung Kong
    Abstract:

    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.

Kyung Sub Shinn - One of the best experts on this subject based on the ideXlab platform.

  • Abdominal Actinomycosis ct findings in 10 patients
    American Journal of Roentgenology, 1993
    Co-Authors: Hong Jae Lee, Hyun Soo Kim, Young Ha Park, Soon Joo Cha, Kyung Sub Shinn
    Abstract:

    The purpose of this study was to analyze the CT findings in 10 patients with Abdominal Actinomycosis to determine the appearance of lesions and the pattern of spread of the disease.We retrospectively reviewed the CT findings in 10 patients with pathologically proved Actinomycosis. Involved areas were the pelvis (n = 4), greater omentum (n = 3), liver (n = 2), and kidney (n = 1). Contrast-enhanced (oral and IV) CT scans were available in all patients. Unenhanced CT scans were also available in six patients.CT scans showed mostly solid masses with focal areas of diminished attenuation in seven patients and mostly cystic masses with thickened walls in three. CT findings confirmed the infiltrative nature of the disease, showing its tendency to invade across tissue planes and boundaries. Dense inhomogeneous contrast enhancement in the walls or solid components of masses was seen in eight patients. Minimal lymphadenopathy was seen in only two patients.Although nonspecific, Actinomycosis should be included in th...