title: Actinotignum schaalii subcutaneous abscesses in a patient with hidradenitis suppurativa: Case report and literature review.
abstract: Actinotignum schaalii (formerly Actinobaculum schaalii) is a Gram-positive, facultative anaerobic rod that is typically involved in urinary tract infections in elderly patients or those with underlying urological pathologies. In contrast, abscess formation caused by A. schaalii is very rare. We present a case of multiple abscesses in the perineal area in a young patient with hidradenitis suppurativa associated with A. schaalii and Prevotella melaninogenica and review the relevant literature on the topic.
authors.affiliation: Department of Clinical Microbiology, Parasitology, Zoonoses and Geographical Medicine, University Hospital of Heraklion, Crete, Greece. Electronic address: sofiamaraki@in.gr.
authors.forename: Sofia
authors.initials: S
authors.lastname: Maraki
authors.affiliation: Department of Dermatology, University Hospital of Heraklion, Heraklion, Crete, Greece.
authors.forename: George
authors.initials: G
authors.lastname: Evangelou
authors.affiliation: Department of Clinical Microbiology, Parasitology, Zoonoses and Geographical Medicine, University Hospital of Heraklion, Crete, Greece.
authors.forename: Dimitra
authors.initials: D
authors.lastname: Stafylaki
authors.affiliation: Laboratory of Clinical Bacteriology and Molecular Microbiology, School of Medicine, University of Crete, Heraklion, Crete, Greece.
authors.forename: Efstathia
authors.initials: E
authors.lastname: Scoulica
mesh_terms: D000038:Abscess / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D000191:Actinomycetaceae / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D000328:Adult; D001424:Bacterial Infections / Q000175:diagnosis* / Q000382:microbiology; D016866:Bacteroidaceae Infections / Q000150:complications* / Q000382:microbiology; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D017497:Hidradenitis Suppurativa / Q000150:complications* / Q000382:microbiology; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D010802:Phylogeny; D001443:Prevotella melaninogenica / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D017422:Sequence Analysis, DNA
chemical_list: D004275:DNA, Ribosomal
keywords: Abscesses; Actinobaculum schaalii; Actinotignum schaalii; Antimicrobial susceptibility; Emerging pathogen; Hidradenitis suppurativa; Microbiological diagnosis