Maxillary sinus actinomycosis: a diagnostic and therapeutic challenge.

The authors present a case of maxillary sinus actinomycosis in a young adult woman.This is a rare condition whose unspecific clinical presentation makes its diagnosis challenging. In this case, the diagnosis was given by the identification of Actinomyces colonies in samples of infected tissue.Treatment consisted of a combined medical and surgical approach. Endoscopic sinus surgery was performed to remove diseased mucosa and to aerate the involved sinuses, followed by long-term antibiotic therapy. No recurrence of the disease was observed during follow-up.

[Actinomycosis Empyema:Report of a Case].

A 73-year-old man was referred to our hospital with a right pleural effusion. Chest computed tomography( CT) showed multifocal pleural effusion, and chest drainage was performed. Actinomyces meyeri was detected in the pleural fluid culture. Despite antibiotic treatment, the patient's condition did not improve, and a curettage was performed for empyema. The chest tube was removed on postoperative day 7 and the patient was discharged home uneventfully on day 21. Intravenous antibiotics were given for 16 days, followed by oral antibiotics for 6 months. Actinomycosis empyema is a rare disease with no established duration of treatment, but a total of 6 to 12 months of treatment is generally recommended.

Mediastinal Mass, Cancer, or Infection, Atypical Paraesophageal Actinomycosis Infection, Clinical and Surgical Approach.

Actinomyces israelii (AI) is a Gram-positive, rod-shaped bacterium that lives commensally on and within humans as a typical colonizer within the gastrointestinal tract, including the mouth. As an opportunistic pathogen, infection often results from tissue injury or breach of the mucosal barrier (ie, during various dental or GI procedures, aspiration, or specific pathologies such as diverticulitis). Symptoms generally present slowly as a non-tender, indurated mass that evolves into multiple abscesses, fistulae, or draining sinus tracts without regard for anatomical barriers, including fascial planes or lymphatic drainage. However, it may also present as an acute suppurative infection with pain and rapid progression to abscess formation.

Pseudo tumor pelvic actinomycosis revealed by colonic obstruction with hydronephrosis: Can extensive surgery be avoided? A case report.

Pelvic actinomycosis with an intrauterine device accounts for approximately 3% of all actinomycoses. It is a chronic infectious disease characterized by infiltrative, suppurative, or granulomatous inflammation, sinus fistula formation, and extensive fibrosis, and caused by filamentous, gram-positive, anaerobic bacteria called Actinomyces israelii. The slow and silent progression favors pseudo tumor pelvic extension and exposes the patient to acute life-threatening complications, namely colonic occlusion with hydronephrosis. Preoperative diagnosis is often difficult due to the absence of specific symptomatology and pathognomonic radiological signs simulating pelvic cancer. We discuss the case of a 67-year-old woman who complained of pelvic pain, constipation, and weight loss for 4 months, and who presented to the emergency department with a picture of colonic obstruction and a biological inflammatory syndrome. The computed tomography scan revealed a suspicious heterogeneous pelvic mass infiltrating the uterus with an intrauterine device, the sigmoid with extensive upstream colonic distension, and right hydronephrosis. The patient underwent emergency surgery with segmental colonic resection and temporary colostomy, followed by antibiotic therapy. The favorable clinical and radiological evolution under prolonged antibiotic therapy with the almost total disappearance of the pelvic pseudo tumor infiltration confirms the diagnosis of pelvic actinomycosis and thus makes it possible to avoid an extensive and mutilating surgery with important morbidity.

Massive hemoptysis as a complication of pulmonary actinomycosis: a case report.

Massive hemoptysis is a rare life-threatening complication of pulmonary actinomycosis that should be treated promptly due to the risk of asphyxiation and hemodynamic instability. We present the case of a 57-year-old female who was presented to our center with massive hemoptysis. Thoracic computed tomography scan revealed a cavitated lesion with perilesional ground-glass opacity. Right lower lobectomy was then performed using uniportal video-assisted thoracic surgery, excising a 13 × 12 × 8 cm cavitated lung fragment. The pathology service reported the presence of microscopical evidence of filamentous gram positive bacterial colonies, showing compatible features of pulmonary actinomycosis. The patient was discharged with oral penicillin with an uneventful post-operative course.

La hemoptisis masiva es una complicación poco frecuente de la actinomicosis pulmonar que pone en peligro la vida del paciente y que debe ser tratada con prontitud debido al riesgo de asfixia e inestabilidad hemodinámica. Presentamos una mujer de 57 años que acudió a nuestro centro con hemoptisis masiva. La tomografía reveló una cavitación con opacidad perilesional en vidrio deslustrado. Realizamos lobectomía mediante cirugía uniportal, extirpando un fragmento de lesión. Patología informó de la presencia de colonias bacterianas filamentosas grampositivas, mostrando características compatibles con actinomicosis pulmonar. El paciente fue dado de alta con penicilina oral, con un curso postoperatorio sin incidentes.

Actinomycosis of the ventral tongue with successful laser ablation therapy: A case report.

BACKGROUND: We present a first case report of an Actinomycosis lesion of the ventral tongue. Actinomycosis of the tongue is an uncommon finding. CASE DESCRIPTION: The 64-year-old female patient presented with a leukoplakic ventral tongue lesion. The diagnosis Actinomycosis was confirmed by histopathologic evaluation. The lesion was successfully treated with antibiotics and laser ablation therapy. PRACTICAL IMPLICATIONS: Diagnostic and therapeutic concerns are discussed. Clinicians are alerted to considering Actinomycosis within the differential diagnosis of leukoplakic tongue lesions.

[The role of piezosurgery in the treatment of a rare case of superinfected cemento-osseous dysplasia caused by actinomyces: a case report]. / L´intérêt de la piézochirurgie dans le traitement d'une dysplasie cémento-osseuse surinfectée par actinomycose: à propos d'un cas.

Cemento-osseous dysplasia is a benign fibro-osseous lesion affecting the alveolar bone. It is classified into three forms: periapical, focal or florid dysplasia. It is often asymptomatic and fortuitously discovered during a routine radiological examination. However, it may become symptomatic after superinfection, after patient's exposure to oral bacterial flora. We here report a case of florid cemento-osseous dysplasia associated with actinomycosis of bone in a 53-year-old Tunisian woman. This superinfection has been rarely reported in the literature; Boolean Searching on PubMed for the keywords "cemento-osseous dysplasia AND actinomyces" displays a single article (Smith et al. 2011). The treatment of actinomycosis infection often requires long-term antibiotic therapy, sometimes associated with surgical debridement, as in the case of this patient who underwent piezosurgery to treat dysplasia and necrotic bone.

Actinomicosis ósea del antepié izquierdo. Presentación de un caso / Bone actinomycosis of the left forefoot. Presentation of a case

RESUMEN Se presentó el caso de una actinomicosis ósea, que se manifestó como una lesión de la piel en la zona correspondiente al segundo metatarsiano izquierdo. Por el antecedente de ser la paciente operada de un tumor de células gigantes, se pensó en una recidiva tumoral. Fue intervenida quirúrgicamente y se realizó exéresis del segundo metatarsiano y de la piel afectada. La biopsia informó actinomicosis. Se trató a la paciente con amoxicilina; evolucionando satisfactoriamente, y dando seguimiento en consulta (AU).

ABSTRACT The authors presented the case of a bone actinomycosis expressed as a skin lesion in the area of the second left metatarsals. Due to the antecedent of having undergone a surgery of a giant cell tumor, a tumor recurrence was thought. Surgical intervention was performed and the excision of the second metatarsals and affected skin was performed. The biopsy reported Actinomycosis. The patient was treated with amoxicillin. She had a satisfactory evolution and is still followed up in consultation (AU).

Actinomicosis en el hueso temporal. Reporte de un caso pediátrico / Actinomycosis in temporal bone. A pediatric case report

La actinomicosis es una infección causada por un bacilo anaerobio Gram-positivo, filamentoso, ramificado, no esporulado. Integra la flora habitual de la orofaringe y coloniza transitoriamente el tracto gastrointestinal, genital femenino y el árbol bronquial. Es poco frecuente en el hueso temporal. Por su semejanza a un hongo, es difícil su reconocimiento, lo que hace necesaria la sospecha clínica para obtener los cultivos apropiados en condiciones anaeróbicas en forma prolongada. Los hallazgos microscópicos típicos incluyen necrosis con gránulos de azufre amarillento y la presencia de filamentos que se asemejan a infecciones fúngicas. El tratamiento requiere de elevadas y prolongadas dosis de antibiótico con penicilina o amoxicilina, entre 6 y 12 meses. La duración de la terapia antimicrobiana podría ser reducida en pacientes que han sido operados quirúrgicamente. Se presenta, a continuación, un caso clínico de actinomicosis en el hueso temporal en un paciente pediátrico que requirió tratamiento quirúrgico para su resolución.

Actinomycosis is an infection caused by a Gram-positive, filamentous anaerobic bacillus. Mainly belonging to the human commensal flora of the oropharynx, it normally colonizes the human digestive and genital tracts and the bronchial tree. It is slightly frequent in the temporal bone. Bacterial cultures and pathology are the cornerstone of diagnosis, but particular conditions are required in order to get the correct diagnosis. Prolonged bacterial cultures in anaerobic conditions are necessary to identify the bacterium and typical microscopic findings include necrosis with yellowish sulfur granules and filamentous Gram-positive fungal-like pathogens. Patients with actinomycosis require prolonged (6- to 12-month) high doses of penicillin G or amoxicillin, but the duration of antimicrobial therapy could probably be shortened in patients in whom optimal surgical resection of infected tissues has been performed. A pediatric patient with actinomycosis in temporal bone who needed surgery resolution is reported.

Mesenteric actinomycosis / Mesenterialis actinomycosis.

Összefoglaló. Egy 46 éves nobeteg esetét ismertetjük, akinél láz és görcsös hasi fájdalom miatt kezdodött kivizsgálás. A hasi ultrahangvizsgálat során a colon transversum területén megvastagodott falú konglomerátum volt látható. A kolonoszkópia során organikus eltérés nem igazolódott. A hasi komputertomográfiás vizsgálat retroperitonealis térfoglalást írt le, ezért onkológiai bizottság javaslata alapján mutét mellett döntöttünk. Egy hónappal a panaszok jelentkezése után megtörtént a mutét, melynek során úgy tunt, hogy egy megközelítoleg 5 × 8 centiméteres, a vékonybélbol kiinduló, a colon ascendenst és a sigmabelet is érinto, daganatnak imponáló terimét találtunk. Jobb oldali hemicolectomiát végeztünk, és reszekáltuk a sigmabélfal részletét. A szövettani vizsgálat malignitást nem igazolt, hanem a bélfallal összefüggést nem mutató, mesenterialis actinomycosist írt le. A hasi, mesenterialis actinomycosis ritka kórkép, mégis fontos, hogy gondoljunk rá mint differenciáldiagnosztikai lehetoségre, így a beteg a leheto leghamarabb megkaphatja a megfelelo kezelést. Esettanulmányunk bemutatásával a kórkép ismeretének fontosságára szeretnénk felhívni a figyelmet. Orv Hetil. 2021; 162(3): 116-119. Summary. We present the case of a 46-year-old female, who presented with fever and abdominal pain. Abdominal ultrasound revealed a thickened-walled conglomerate near the transvers colon. Colonoscopy did not show any organic abnormality. Abdominal computed tomography described a retroperitoneal mass, so we decided on surgery based on the multidisciplinary team decision. One month after the onset of symptoms, laparotomy was performed, and it seemed that we found an approximately 5 × 8 centimetre tumour attached to the small intestine involving the ascending and sigmoid colon. We performed right hemicolectomy and sigmoid colon wall resection. Histology result showed mesenteric actinomycosis with no connection to the intestinal wall, no malignancy was revealed. Although the abdominal, mesenteric actinomycosis is a rare disease, it is important to think of it as a differential diagnostic option, so the patient can get proper treatment and cured sooner. Our aim with presenting this case report is to highlight the significance of this disease. Orv Hetil. 2021; 162(3): 116-119.

A Case Report of Pelvic Actinomycosis and a Literature Review.

BACKGROUND The aim of this study was to report the clinical diagnosis and treatment of a case of pelvic actinomycosis in our hospital and provide a review of recent literature. CASE REPORT The patient was a 54-year-old woman who was admitted to our hospital due to "bilateral lower abdominal tenderness accompanied with anorexia and vomiting for 3 months". After admission, a variety of imaging examinations found pelvic space-occupying lesions, which were considered as malignant. She underwent surgery and pelvic actinomycosis was diagnosed by postoperative pathology. Postoperatively, she was treated with a high-dose sufficient course of penicillin (20 million U, iv gtt) for 14 days and she is currently under close follow-up for 1 year, with no recurrent symptoms. CONCLUSIONS Pelvic actinomycosis is rare and often forms mass invasion into the tissue structure around the pelvic cavity, which is easily misdiagnosed as ovarian malignant tumor. The criterion standard for diagnosing an infection is culture, with histopathology aiding the diagnosis.

Nasal Septum Actinomycosis Mimicking Mucocele.

Actinomycosis commonly occurs in the cervicofacial region, but rarely in the paranasal sinus. The authors report an unusual case of nasal septum actinomycosis that was mistaken for a mucocele. The patient was treated accordingly using antibiotic therapy after endoscopic sinus surgery was performed. It is noteworthy that actinomycosis of the nasal septum could appear as a mucocele without central calcification or bony destruction in imaging studies.

Surgical endodontics for management of progressive actinomycosis.

Actinomycosis is caused by gram-positive, branching, filamentous, anaerobic bacteria of the genus Actinomyces. This case report describes treatment of a 35-year-old woman who had a progressive apical lesion after nonsurgical endodontic retreatment of her maxillary left lateral incisor. The area had localized soft tissue swelling, and the tooth was sensitive to percussion. Radiographic evaluation showed a large apical lesion with a clear margin. After treatment options, including extraction, were discussed, the patient chose to preserve the tooth through endodontic surgery. Root-end resection, canal preparation, and filling with calcium-enriched mixture cement were performed. Histopathologic examination of surgical specimens revealed a radicular cyst associated with actinomycosis. At an 18-month follow-up, the patient was symptom free and bone healing was almost completed. Periradicular actinomycosis is one of the most common reasons for the failure of nonsurgical endodontic treatment and retreatment. If a tooth is nonresponsive to nonsurgical endodontic treatments, apical actinomycotic infection should be suspected and a surgical approach should be planned to obtain a successful outcome.

Renal actinomycosis with retroperitoneal abscess in a cirrhotic patient: A case report (CARE-complaint).

RATIONALE: Renal actinomycosis is a rare clinical infection, subacute to chronic presentation caused by the Actinomyces bacteria. Actinomyces israelii is diagnosed in the overpowering majority of reported cases. Abdominopelvic manifestation forms 10% to 20% of all actinomycosis, and may be misdiagnosed as either a malignancy or chronic inflammation due to the lower correct preoperative diagnostic rate (<10%). PATIENT CONCERNS: A 38-year-old man with alcoholic liver cirrhosis experienced right flank pain, abdominal pain, and fever for 3 days. Leukocytosis, acute kidney injury, and impaired liver function were found. A computed tomographic scan demonstrated multiple renal cystic lesions, along with fluid accumulation at the right subphrenic and retroperitoneal spaces. DIAGNOSES: Renal actinomycosis was confirmed via cultures of both the abscess and nephrectomy specimen which grew A israelii and the pathological findings of multiple renal abscesses of actinomycosis with the characteristics of sulfur granules. INTERVENTIONS: A nephrectomy was performed for an inadequate percutaneous drainage of renal abscess. OUTCOMES: A full course of antibiotics with intravenous penicillin G (3 million units every 4 hours) was prescribed for 2 weeks, followed by oral penicillin V given at a dose of 2 grams per day for 6 months at our out-patient facility. LESSONS: A precise diagnosis of primary renal actinomycosis depends on any histopathological findings and/or cultures of specimens. A high dose of intravenous penicillin G is the first choice, followed by oral penicillin V, with the duration of each being dependent upon the individual condition.

Primary actinomycosis of the breast in postmenopausal women.

INTRODUCTION: Actinomycosis is a chronic infection caused by actinomyces species characterized by an abscess formation, tissue fibrosis, and draining sinuses. Primary actinomycosis of the breast is rare. PATIENTS AND METHODS: In this paper we present a 64-year-old postmenopausal woman. For the diagnosis of primary actinomycosis of the breast, mammography, ultrasonography, MRI, and histopathologic examinations are required. Microbiological culture and histopathology are of the most importance during the process of diagnosis. In our case, at the intersection of the sternum and the lower inner quadrant of the right breast, there was a 1 cm wide fistula opening, and an abscess. A. israelii has been isolated from the microbiological culture taken from the lesion RESULTS: An optimal surgical resection of infected tissues has been performed as the treatment with the wound left open for tertiary healing The patient was given sulbactam 4*1 gr/day intravenously for 4 weeks post-op.. Recurrence was not detected during the yearly follow up procedures CONCLUSIONS: Actinomycosis should be considered when differentially diagnosing clinical instances of suppurative or granulomatous infections of the breast and mass regions that can't be ruled out as malignancies. Early diagnosis will save the patient from unnecessary surgical operations and ineffective antibiotic treatments. KEY WORDS: Actinomycosis, Breast abscess, Breast diseases.

Actinomicosis de pared abdominal con infiltración hepática simulando una neoplasia maligna: reporte de un caso / Abdominal wall actinomycosis with hepatic infiltration mimicking a malignant neoplasm: case report

La infección por Actinomices (actinomicosis), es una entidad poco frecuente y que puede crear dificultades diagnósticas y terapéuticas; principalmente cuando por su presentación se asemeja a neoplasias malignas. El objetivo de este estudio fue reportar un caso de actinomicosis de pared abdominal con infiltración hepática y revisar la evidencia existente. Se trata de una paciente sexo femenino, de 33 años de edad, sin antecedentes quirúrgicos ni de utilización de dispositivos intra-uterinos. Consultó por dolor abdominal y masa palpable a nivel epigástrico. Se estudió con imágenes, las que permitieron verificar una masa de pared abdominal con trayecto fistuloso al hígado. Se realizó una exéresis amplia de la lesión antes descrita. Una vez extirpado el espécimen, se fue a estudio histopatológico, que reveló gránulos de azufre consistentes con actinomices. La paciente evolució de forma satisfactoria, sin inconvenientes. Presentamos un caso poco común de actinomicosis de pared abdominal con infiltración hepática. Cuando se encuentra una gran masa intraperitoneal, la actinomicosis debe incluirse en el proceso de diagnóstico diferencial.

Actinomyces infection (actinomycosis) may create diagnostic conflicts and be confused with malignant neoplasms, especially in the abdomen. The objective of this study was to report a case of abdominal wall actinomycosis with hepatic infiltration, and review the existing evidence. Female patient, 33 years of age, with no surgical history or use of intra-uterine devices. She consulted for abdominal pain and palpable mass at the epigastrium. It was studied with images, which allowed verifying an abdominal wall mass with hepatic fistulae. A broad extirpation of the lesion was performed. The histological study revealed sulfur granules consistent with actinomyces. The patient has evolved satisfactorily, without problems; and is currently in treatment with amoxicillin. We present an unusual case of abdominal wall actinomycosis with hepatic infiltration that resulted in a difficult diagnosis. When a large intraperitoneal mass is found, actinomycosis needs to be included as a differential diagnoses.