Actinomycosis of the Appendix Mimicking Cecal Tumor Treated by Single-Port Laparoscopic Approach

Cho, In Soo; Bae, Sung Uk; Jung, Hye Ra; Park, Kyung Sik; Jeong, Woon Kyung; Baek, Seong Kyu

doi:10.3393/ac.2019.08.10.1

Cited by 5 publications

(4 citation statements)

References 13 publications

(15 reference statements)

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“…Other symptoms of PBCM include abdominal distension, pelvic pain, palpable mass, weight loss, nausea, vomiting, constipation, signs of intestinal obstruction, and urinary retention [12] . In our case, the patient had a right lower quadrant pain in the abdomen which resembled the symptoms of acute appendicitis [13] . Physical examination may help to discover PBCM but does not aid in distinguishing PBCM from other diseases.…”

Section: Discussionmentioning

confidence: 56%

Benign multicystic mesothelioma of appendiceal origin treated by hyperthermic intraperitoneal chemotherapy: A case report

Lee

Nahm

Kang

et al. 2022

International Journal of Surgery Case Reports

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Section: Discussionmentioning

confidence: 56%

Benign multicystic mesothelioma of appendiceal origin treated by hyperthermic intraperitoneal chemotherapy: A case report

Lee

Nahm

Kang

et al. 2022

International Journal of Surgery Case Reports

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“…Even in the case of significant mucosal abnormalities, biopsy results are often nonspecific, showing chronic inflammation. 7 Many cases of abdominal actinomycosis will require a surgical approach for definitive diagnosis. 4 The diagnosis is made preoperatively in only 17%-20% of cases.…”

Section: Discussionmentioning

confidence: 99%

Abdominal Actinomycosis Abscess Presenting as an Isolated Gastrointestinal Pseudotumor

2021

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Actinomyces is a gram-positive anaerobic bacterium that is ubiquitous in nature. It typically presents as respiratory, cervicofacial, or abdominopelvic abscesses. We present a 66-year-old man with a progressive enlarging abdominal wall nodule concerning for malignancy. The patient had a negative workup, including an ultrasound-guided fine-needle aspiration and colonoscopy, with biopsy for a possible extension to the colonic wall. Diagnosis of an Actinomyces abscess was obtained through surgical resection with right hemicolectomy. He was successfully treated with a prolonged course of intravenous antibiotics. This is a rare case of an isolated abdominal wall Actinomyces abscess mimicking a gastrointestinal malignancy.

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“…Actinomycosis is a rare, chronic, and progressive disease that is most frequently brought on by the anaerobic gram-positive bacterium Actinomyces Israelii with an estimated prevalence of about one case per 40−119 000 1 – 3 . It is frequently characterized by the development of many abscesses, fistulae, draining sinuses, extensive granulation, and inflammatory pseudotumors.…”

Section: Introductionmentioning

confidence: 99%

Appendiceal actinomycosis mimicking malignant tumor: a rare case report

Khabyeh-Hasbani,

Zino,

Dima

et al. 2024

Annals of Medicine &Amp; Surgery

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Introduction: Actinomycosis is an uncommon bacterial infection caused by Actinomyces bacteria that typically progresses slowly and leads to the formation of masses. Although it commonly affects the cervicofacial area, about 20% of cases occur in the abdominopelvic region. Because the disease can be mistaken for a tumor due to its infiltrative mass-like nature on imaging, over 90% of cases are only diagnosed following surgery and histological confirmation. This report describes a case of an appendicular mass, initially suspected to be a malignant tumor, but eventually diagnosed as appendiceal actinomycosis. Presentation of Case: Upon initial presentation, a 53-year-old woman with type II diabetes mellitus and no prior surgical history, displayed abnormal appendiceal uptake during a PET-CT scan conducted for a suspected spinal tumor. Colonoscopy did not indicate any notable observations, and the patient chose to defer immediate action. Several months later, a CT scan revealed an increased mass-like appearance of the appendix compared to the previous PET-CT scan. After multidisciplinary discussions, a right laparoscopic hemicolectomy was recommended due to suspected malignancy. However, histological staining on microscopy confirmed actinomycosis originating from the appendix. Discussion: Chronic appendicitis with radiologic features similar to appendiceal carcinoma, or abdominal masses located in the ileocecal area, in patients with or without a previous surgical history should raise suspicion of actinomycosis. Conclusion: Appendiceal actinomycosis should be considered in the differential diagnosis in the etiology of chronic appendicitis mimicking appendiceal carcinoma. Awareness and accurate diagnosis of appendiceal actinomycosis can prevent unnecessary extended surgery as was performed in this case.

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Actinomycosis of the Appendix Mimicking Cecal Tumor Treated by Single-Port Laparoscopic Approach

Cited by 5 publications

References 13 publications

Benign multicystic mesothelioma of appendiceal origin treated by hyperthermic intraperitoneal chemotherapy: A case report

Benign multicystic mesothelioma of appendiceal origin treated by hyperthermic intraperitoneal chemotherapy: A case report

Abdominal Actinomycosis Abscess Presenting as an Isolated Gastrointestinal Pseudotumor

Appendiceal actinomycosis mimicking malignant tumor: a rare case report

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