8,117 results match your criteria Actinomycosis


Pulmonary Infection: Case Report and Review of the Literature.

Front Med (Lausanne) 2022 10;9:916817. Epub 2022 Jun 10.

Department of Pulmonary and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing, China.

Background: Pulmonary actinomycosis (PA), a chronic indolent infection, is a diagnostic challenge. is a relatively rare Actinomyces species isolated from various clinical samples.

Case Presentation: A 47-year-old patient presented with a 3-month history of mucopurulent expectoration and dyspnea and a 3-day history of fever up to 39. Read More

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Pericardial mass: A rare form of cardiac actinomycosis case report.

Ann Med Surg (Lond) 2022 Jun 24;78:103854. Epub 2022 May 24.

Department of Surgery, King Fahad Specialist Hospital, Dammam, 34423, Saudi Arabia.

Actinomycosis is a rare chronic infection caused by a group of anaerobic Gram-positive bacteria which inhabits commonly the oral cavity, colon, and genitourinary tract. Actinomycosis of the thorax is the third most common form. Pericardial actinomycosis is an extremely rare condition. Read More

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Actinomycosis in a mandibular necro-osteolytic lesion in a patient with multiple myeloma treated with bisphosphonates.

Curr Res Transl Med 2022 Jun 14;70(4):103359. Epub 2022 Jun 14.

Sorbonne University, Paris, France; Service d'Hématologie Clinique et Thérapie Cellulaire, Hôpital Saint-Antoine, AP-HP, Paris, France; INSERM, UMRs 938, Paris, France.

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Periapical Actinomycosis: A Rare Subdivision of Cervicofacial Actinomycosis, Review of the Literature, and a Case Report.

Case Rep Dent 2022 6;2022:7323268. Epub 2022 Jun 6.

Department of Oral and Maxillofacial Surgery, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

Background: Periapical actinomycosis, which is reckoned as a subgroup of cervicofacial actinomycosis, is an uncommon, more indolent, less invasive, and limited type of actinomycosis infection. However, it can be considerably underreported due to the low number of periapical surgical specimens that are submitted for histopathological analysis after excision of the lesion with the preliminary diagnosis of typical periapical infections. It is believed that during root canal treatment, the organisms are displaced from the oral cavity into the periapical regions as a result of failure to establish aseptic techniques which can further result in actinomycosis infections and, in rare instances, lead to more severe events and can even be life-threatening. Read More

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Esophageal Actinomycosis in an Immunocompetent Patient Mimicking Carcinoma: A Case Report.

JNMA J Nepal Med Assoc 2022 Jun 1;60(250):559-561. Epub 2022 Jun 1.

Department of Gastroenterology, Kathmandu Medical College Teaching Hospital, Sinamangal, Kathmandu, Nepal.

Esophageal actinomycosis is a rare occurrence that presents a diagnostic challenge due to its vague clinical picture. The common symptoms include dysphagia, odynophagia and epigastric pain. These symptoms, although alarming, are usually non-specific. Read More

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Is appendectomy always the adequate treatment? Clinical manifestations of isolated actinomycosis in appendix.

Turk J Surg 2021 Dec 31;37(4):403-407. Epub 2021 Dec 31.

Clinic of Radiology, University of Health Sciences, İstanbul Basaksehir Cam and Sakura City Hospital, İstanbul, Turkey.

Isolated appendiceal actinomycosis is a rare chronic progressive suppurative infection. Causative agent in humans is gram-positive saprophytic an- aerobic bacteria, Actinomyces Israelii. Herein, it was aimed to present a case of acute appendicitis that developed in a 54-year-old female due to isolated appendiceal actinomycosis. Read More

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December 2021

A Suspicious Hilar Mass Revealing an Uncommon Diagnosis of Pulmonary Actinomycosis in an Immunocompromised Young Female Patient: A Case Report and Literature Review.

Cureus 2022 Apr 28;14(4):e24549. Epub 2022 Apr 28.

Pulmonary and Critical Care, AMITA Health Saint Francis Hospital, Evanston, USA.

 Actinomycosis is a chronic inflammatory infectious disease that can affect various organ systems. Pulmonary actinomycosis is an exceptionally uncommon clinical occurrence that yet deserves special attention, as it closely mimics a broad spectrum of infectious and neoplastic lung pathologies. The non-specific nature of its clinical features and radiological appearances makes early diagnosis quite challenging. Read More

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A case of recurrent acute cholecystitis caused by Actinomyces odontolyticus, rare actinomycosis.

BMC Infect Dis 2022 Jun 4;22(1):518. Epub 2022 Jun 4.

Department of Clinical Laboratory Medicine, Shizuoka General Hospital, Kitaandou 4-27-1, Aoi-ku, Shizuoka, Japan.

Backgrounds: Actinomyces species are gram-positive, obligate anaerobic rods and are rare causes of cholecystitis. Because Actinomyces species are anaerobic bacteria, it is difficult for Actinomyces to survive in bile apart from A. naeslundii. Read More

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Actinomycosis and osteonecrosis of the jaw: Every why hides a why.

J Stomatol Oral Maxillofac Surg 2022 May 28. Epub 2022 May 28.

Department of oral and maxillo-facial surgery, Cliniques Universitaires Saint-Luc, Universite Catholique de Louvain, 10, avenue Hippocrate, 1200 Brussels, Belgium; Institut Roi Albert II, Cancérologie et Hématologie, Cliniques Universitaires Saint-Luc, Universite Catholique de Louvain, 10, avenue Hippocrate, 1200 Brussels, Belgium.

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"The President's Syndrome": The Diagnosis and Treatment of Gerald Ford's Lingual Actinomycosis.

Am Surg 2022 May 27:31348221084953. Epub 2022 May 27.

Departments of Head and Neck Surgery and Communication Sciences (Lee) and Surgery (Pappas), 12277Duke University School of Medicine, Durham, NC, USA.

Gerald R. Ford was the 38 president of the United States. He was appointed as vice president by Richard Nixon in 1974 upon the resignation of Spiro T. Read More

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Rhinocerebral Mucormycosis Associated With Anterior Skull Base Actinomyces Osteomyelitis in a Pediatric Patient With Type 1 Diabetes.

Cureus 2022 Apr 20;14(4):e24311. Epub 2022 Apr 20.

Department of Otolaryngology-Head and Neck Surgery, Medical College of Wisconsin, Milwaukee, USA.

Rhino-orbital-cerebral mucormycosis (ROCM) is a fulminant, often fatal, angioinvasive fungal infection commonly transmitted through inhalation of fungal spores and traumatic inoculation. While the literature has documented rare cases of infection in immunocompetent patients, the vast majority of case fatalities are noted in immunosuppressed populations. Common predisposing factors to infection include immunosuppressive therapies, hematologic malignancies, and most notably, uncontrolled diabetes. Read More

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Esophageal actinomycosis simulating circumferential neoplasia.

Gastroenterol Hepatol 2022 May 20. Epub 2022 May 20.

Servicio de Aparato Digestivo, Hospital Universitario de Navarra, Pamplona, Navarra, España.

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Colonic Actinomycosis Presenting One Year After Partial Sigmoid Colectomy.

Cureus 2022 Apr 8;14(4):e23954. Epub 2022 Apr 8.

Pathology and Laboratory Medicine, Trinitas Regional Medical Center/RWJBarnabas Health, Elizabeth, USA.

Actinomycetes are commensal inhabitants of the oral cavity and gastrointestinal tract that can acquire pathogenicity through invasion of injured mucosa. Appendix and ileocecal regions are the most common sites involved in abdominal actinomycosis. We report a case of unusual site actinomycosis, in the recto-sigmoid colon, presenting with abdominal pain and diarrhea after one year of partial sigmoid colectomy. Read More

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Urachal Actinomycosis Presenting with Recurrent Urinary Tract Infections in a Middle-aged Woman: A Rare Case Report.

J Coll Physicians Surg Pak 2022 May;32(5):668-670

Department of Pathology, Hisar Intercontinental Hospital, Istanbul, Turkey.

The urachal cyst, a remnant of allantois sac during embryogenesis, is a rare condition in adulthood. Urachus is an embryologic remnant degenerating after birth. Abberrant obliteration of the urachus causes urachal abnormalities. Read More

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Pulmonary invasive mucinous adenocarcinoma mimicking pulmonary actinomycosis.

BMC Pulm Med 2022 May 6;22(1):181. Epub 2022 May 6.

Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China.

Background: Primary pulmonary invasive mucinous adenocarcinoma is a rare and distinct subtype of lung adenocarcinoma.

Case Presentation: A 72-year-old woman presented with productive cough for two months and fever for six days. Chest computed tomography (CT) showed a mass in the left lower lobe. Read More

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Prediction models for early diagnosis of actinomycotic osteomyelitis of the jaw using machine learning techniques: a preliminary study.

BMC Oral Health 2022 05 6;22(1):164. Epub 2022 May 6.

Department of Oral and Maxillofacial Surgery, Chungbuk National University Hospital, 776, 1Sunhwan-ro, Seowon-gu, Cheongju, Chungbuk, 28644, South Korea.

Background: This study aimed to develop and validate five machine learning models designed to predict actinomycotic osteomyelitis of the jaw. Furthermore, this study determined the relative importance of the predictive variables for actinomycotic osteomyelitis of the jaw, which are crucial for clinical decision-making.

Methods: A total of 222 patients with osteomyelitis of the jaw were analyzed, and Actinomyces were identified in 70 cases (31. Read More

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Pulmonary actinomycosis and polymicrobial empyema in a patient with ABPA and bronchocoele.

Respirol Case Rep 2022 Jun 1;10(6):e0954. Epub 2022 May 1.

Monash Lung and Sleep Monash Medical Centre Clayton Victoria Australia.

We present a 43-year-old woman, with a history of allergic bronchopulmonary aspergillosis and a chronic bronchocoele, who was admitted to hospital with an infection of the bronchocoele, progressing to a pulmonary abscess and polymicrobial empyema, following dental extraction and regular probiotic ingestion. Interval chest imaging following this procedure demonstrated worsening right upper lobe opacities and a right-sided pleural effusion. Bronchoscopies identified copious mucoid secretions and an infected bronchocoele with a right upper lobe airways impaction. Read More

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Laryngeal Actinomycosis -A Case of 36 Year Old Female at Hawassa University Comprehensive Specialized Hospital in Hawassa, Sidama, Ethiopia, Ethiopian Patient.

Int Med Case Rep J 2022 24;15:213-218. Epub 2022 Apr 24.

Department of Pediatrics and Child Health, Hawassa University Comprehensive Specialized Hospital, Hawassa, Sidama, Ethiopia.

Background: Actinomycosis is a granulomatous infection produced by filamentous, gram-positive anaerobic bacteria. Due to its rarity, ambiguous symptoms, and resemblance to more frequent disorders, including cancer, Crohn's disease, and tuberculosis, it is a challenging disease to identify preoperatively.

Case Presentation: Our case was a case of a 36-year-old woman from the Oromia region's West Arsi zone, who presented with a 6-month history of snoring, dysphonia, and cough, as well as significant but unquantified weight loss, fatigue, and low-grade and intermittent fever, for which she had visited various health facilities with no noticeable improvements in her symptoms. Read More

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A rare cause of acute abdominal pain: Actinomyces infection of colon mimicking a malignant neoplasm due to intrauterine device.

Ulus Travma Acil Cerrahi Derg 2022 Apr;28(4):537-540

Department of General Surgery, İstanbul University İstanbul Faculty of Medicine, İstanbul-Turkey.

Actinomycosis is a rare, chronic granulomatous disease that is challenging to diagnose because the clinical symptoms and signs are nonspecific. Usage of intrauterine device (IUD) or being immunocompromised is facilitating factors. Clinical and radiological findings can mimic malignant neoplasm, inflammatory bowel disorder, or acute diverticulitis. Read More

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Let's talk about sex characteristics-As a risk factor for invasive fungal diseases.

Mycoses 2022 Jun 25;65(6):599-612. Epub 2022 May 25.

Durham County Department of Public Health, Durham, North Carolina, USA.

Biological sex, which comprises differences in host sex hormone homeostasis and immune responses, can have a substantial impact on the epidemiology of infectious diseases. Comprehensive data on sex distributions in invasive fungal diseases (IFDs) are lacking. In this review, we performed a literature search of in vitro/animal studies, clinical studies, systematic reviews and meta-analyses of invasive fungal infections. Read More

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Intestinal barrier dysfunction mediates Whipple's disease immune reconstitution inflammatory syndrome (IRIS).

Immun Inflamm Dis 2022 May;10(5):e622

Medical Department I, Gastroenterology, Infectious Diseases and Rheumatology, Charité-University Medicine, Berlin, Germany.

Background & Aims: Classical Whipple's disease (CWD) affects the gastrointestinal tract and causes chronic diarrhea, malabsorption, and barrier dysfunction with microbial translocation (MT). Immune reconstitution inflammatory syndrome (IRIS) is a serious complication during antimicrobial treatment of CWD. The pathomechanisms of IRIS have not been identified and mucosal barrier integrity has not been studied in patients with IRIS CWD. Read More

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More Than Meets the Eye: Abdominopelvic Actinomycosis.

J Gastrointest Surg 2022 Apr 26. Epub 2022 Apr 26.

Department of Gastroenterology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.

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Actinomyces Acute Rhinosinusitis Complicated by Subperiosteal Abscess in an Immunocompromised 12-Year-Old: Case Report and Literature Review.

Case Rep Otolaryngol 2022 11;2022:7058653. Epub 2022 Apr 11.

Department of Otolaryngology Head and Neck Surgery, University of Rochester Medical Center, Rochester, NY, USA.

Objective: To describe a rare case of pediatric actinomycotic rhinosinusitis with orbital subperiosteal abscess and review the current literature to assess methods of diagnosis, treatment modalities, and outcomes with appropriate treatment.

Methods: A case report and a review of the literature.

Results: A 12-year-old patient with Crohn's disease on infliximab presented with rhinosinusitis with orbital subperiosteal abscess formation. Read More

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Clinical and radiological characteristics of pulmonary actinomycosis mimicking lung malignancy.

Rev Assoc Med Bras (1992) 2022 Mar;68(3):372-376

Health Sciences University Atatürk Chest Diseases and Thoracic Surgery Education and Research Hospital, Department of Nuclear Medicine - Ankara, Turkey.

Introduction: Pulmonary actinomycosis, clinically and radiologically, mimics abscess, tuberculosis, and lung malignancy, resulting in misdiagnosis or delay in diagnosis. In this study, we analyzed the clinicoradiological features of pulmonary actinomycosis, the presence of any differences between clinical prediagnosis and radiological diagnosis, and whether imaging modalities help distinguish pulmonary actinomycosis from lung cancer.

Methods: A total of 22 patients who had a histopathological diagnosis of actinomycosis in a tertiary health center participated in this study. Read More

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A Rare case of central nervous system actinomycosis presenting with moyamoya syndrome.

CNS Neurosci Ther 2022 Jul 11;28(7):1139-1142. Epub 2022 Apr 11.

Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.

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Paranasal sinus actinomycosis treated with a combination of surgery and long-term low-dose macrolide.

Ear Nose Throat J 2022 Apr 9:1455613221092208. Epub 2022 Apr 9.

Department of Otolaryngology, Head and Neck Surgery, 73819Tohoku University Hospital, Japan.

Actinomycosis is a bacterial infection caused by actinomyces. Although almost 50% of cases are related to the head and neck region, those in the nose and paranasal sinuses (PNS) are rare. Actinomycosis of the PNS is presumed to be typically caused by dental caries, dental manipulation, and maxillofacial trauma, which facilitate the penetration of oral pathogens into the sinus, and should thus be treated by the combination of surgical removal and potent antibiotics for at least two months. Read More

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Infective endocarditis by species: a systematic review.

J Chemother 2022 Apr 6:1-8. Epub 2022 Apr 6.

Department of Internal Medicine & Infectious Diseases, University Hospital of Heraklion, Heraklion, Greece.

Actinomycosis, is a slowly progressive infection that may mimic malignancy due to the invasiveness of tissues and the ability to form sinus tracts. Infective Endocarditis (IE) is a rare disease with significant morbidity and mortality. Interestingly, even though there are scarce data of IE by spp. Read More

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Disseminated cutaneous Actinomyces bovis infection in an immunocompromised host: case report and review of the literature.

BMC Infect Dis 2022 Mar 29;22(1):310. Epub 2022 Mar 29.

Infectious Diseases Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.

Background: Actinomycosis is an uncommon endogenous bacterial infection caused by Actinomyces species, characterized by the development of abscesses, tissue fibrosis, and fistulisation. It remains a diagnostic challenge, due to its similarities with diverse aetiologies' presentation, such as neoplasms, tuberculosis, or fungal infections. Actinomyces bovis is a microorganism rarely reported as a cause of human disease. Read More

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Abdominopelvic actinomycosis: An unexpected diagnosis in an elderly female with a destructive-appearing soft tissue mass.

IDCases 2022 19;28:e01479. Epub 2022 Mar 19.

Department of Internal Medicine, AMITA Health St. Francis Hospital, 355 Ridge Avenue, Evanston, IL 60202, USA.

We present the case of an elderly female who underwent a workup for acute blood loss anemia that incidentally led to the discovery of abdominopelvic actinomycosis. While esophagogastroduodenoscopy and colonoscopy were unremarkable, CT abdomen/pelvis displayed a soft tissue mass in the left sacral ala and presacral area that appeared suspicious for malignancy. MRI pelvis revealed a presacral abscess, and an IR-guided biopsy cemented the diagnosis. Read More

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Abdominopelvic Actinomycosis-The Diagnostic and Therapeutic Challenge of the Most Misdiagnosed Disease.

Life (Basel) 2022 Mar 17;12(3). Epub 2022 Mar 17.

Department of Surgery, St. Spiridon Emergency University Hospital, Grigore T. Popa University of Medicine and Pharmacy, 16 University Street, 700115 Iassy, Romania.

Abdominopelvic actinomycosis is a rare chronic or subacute bacterial infection caused by , a Gram-positive anaerobic bacterium that normally colonizes the digestive and genital tracts, clinically presented as an inflammatory mass or abscess formation.

Methods: We reviewed the medical records of the patients from our clinic with abdominopelvic actinomycosis who underwent surgery between 2002 and 2022. In this period, 28 cases (9 men and 19 women) were treated. Read More

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