We describe the case of a 76-year-old immunocompetent man suspected to have lung cancer in the right upper lobe on the basis of radiographic and clinical findings. The tumour could not be confirmed histologically by transbronchial biopsy. In the fluorodeoxyglucose positron emission tomography (FDG-PET) we found a significantly elevated standard uptake value (SUV) of 13.4. The patient underwent thoracotomy with excision of the tumour, the histological diagnosis was chronic pneumonia. Tissue culture revealed Nocardia spp. Using 16-rDNA-gene sequence analysis the species was identified as Nocardia abscessus. The patient was treated with trimethoprim-sulfamethoxazol regarding the susceptibility profile and improved remarkably both clinically and radiographically.
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http://dx.doi.org/10.1055/s-2006-954990 | DOI Listing |
GMS Hyg Infect Control
December 2024
Department of ENT, Sree Balaji Medical college Chromepet, Chennai, Tamil Nadu, India.
Actinomycosis is an endogenous bacterial infection caused by . This bacterium reside on the mucosa of oral cavity, tonsils, and genitourinary tract. Any insult such as trauma, surgery, or foreign body disrupts the mucosal barrier and gives entry to the underlying tissue to cause disease.
View Article and Find Full Text PDFActa Dermatovenerol Croat
November 2024
Khalid Al Aboud King Faisal Hospital P.O Box 5440, Makkah, Saudi Arabia;
parts of the world (1,2). CL is characterized by significant clinical variability. An ulcerated nodule on the exposed parts of the body (corresponding to the parasite inoculation site by the vector insect) is the classic presentation.
View Article and Find Full Text PDFJ Comp Pathol
January 2025
Histologia i Anatomia Patològica, Facultat de Veterinària (UAB), 08193 Bellaterra (Barcelona), Spain.
Nocardia spp are ubiquitous, gram-positive, variably acid-fast, branching and beaded filamentous, facultative intracellular bacteria that are resistant to phagocytosis and can cause localized or systemic disease in a variety of mammals, including humans, as well as in birds, fish and reptiles. Seventeen pet domestic ferrets (Mustela putorius furo) were diagnosed with nocardiosis by several methods including cytological evaluation, histopathology, Ziehl-Neelsen staining and polymerase chain reaction (PCR). All except two ferrets were 2 years old or older at the time of clinical presentation.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Department of Oncology, General Hospital of Western Theatre Command, No. 270, Tianhui Road, Rongdu Avenue, Jinniu District, Chengdu, Sichuan, 610000, People's Republic of China.
Background: Nocardia are widely present in nature and considered opportunistic pathogens. They can result in hematogenous spread infection through the ruptured skin or respiratory tract when the host's immune system is compromised. Currently, 119 species of Nocardia have been identified, with 54 capable of causing infections in humans.
View Article and Find Full Text PDFRespir Med
December 2024
Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shimbashi, Minato-ku, Tokyo, 105-8471, Japan. Electronic address:
Background: Pulmonary nocardiosis is a rare opportunistic infection, with approximately 15 % of patients being immunocompetent. The isolation rate of Nocardia spp. has recently increased, indicating rising clinical concern.
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