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Laser assisted in situ keratomileusis (LASIK) surgery is the leading and most performed refractive surgery nowadays. A possible complication of LASIK surgery is infectious keratitis which can lead to disastrous corneal damage and result in permanent loss of vision. LASIK procedures have become increasingly accessible, and the demand for refractive surgery has risen among patients, challenging the medical field to improve the prevention of post-operative infections. Nevertheless, a wide range of pathogens have been described as responsible for post-LASIK keratitis. However, non-tuberculous mycobacterial keratitis remains an infrequent occurrence and is poorly described in the literature. To the best of our knowledge, this is the first ever reported case of post-LASIK keratitis caused by Mycobacterium wolinskyi. We describe the clinical and microbial characteristics, leading to its challenging treatment choice.

( ), which is a rare rapidly growing mycobacterium (RGM), and the infections it causes are predominantly linked to surgery or invasive procedures. We detailed a case of refractory surgical site infection (SSI) caused by . The causative pathogen was identified by metagenomic next-generation sequencing (mNGS) analysis, 16S rRNA and   gene sequencing. What renders this case particularly remarkable is the complexity introduced by a series of antibiotic-induced adverse effects, which seem to be deeply intertwined with the patient's underlying metabolic syndrome. With the meticulous pharmaceutical guidance provided by the clinical pharmacist, the patient experienced a substantial improvement in his knee joint infection.

Background Catheter-related bloodstream infection (CRBSI), caused by rapidly growing mycobacteria (RGM), is a rare infectious complication in hematopoietic stem cell transplant (HSCT) recipients and can often be misdiagnosed as Gram-positive rod (GPR) bacteremia. Case presentation We present a case of CRBSI caused by Mycobacterium wolinskyi , a rare RGM, in a 44-year-old female patient who received an umbilical cord blood transplant. Conclusions Rapidly growing mycobacteria can stain as GPRs and may grow in routine blood culture media after 3–4 days of incubation. These features are not widely known to clinicians, and acid-fast staining is therefore recommended when unidentifiable GPRs are detected in blood cultures, especially in immunocompromised patients, such as those with hematologic malignancies or intravascular devices.

Mycobacterium wolinskyi is a rapid-growth non-tuberculous mycobacterium. Twenty-one cases of M. wolinskyi infection have been described so far, more than half as cardiovascular or postoperative cardiothoracic infections. We report the case of a patient with a cardiovascular implantable electronic device infected by M. wolinskyi, successfully treated with device removal and antimicrobials.

Background Mycobacteirum wolinskyi is a member of the Mycobacterium smegmatis group, which is less frequently found in clinical settings than other nontuberculous mycobacterium (NTM) species. However, its clinical significance has recently increased in opportunistic infections. This case is the first report of facial skin and soft tissue infection by M. wolinskyi complicating cosmetic procedures. Case presentation A 56-year-old Asian female patient with a history of receiving multiple facial cosmetic procedures over the preceding 2 years was admitted to our institution with swelling, local pain, and erythema on the right cheek. Mycobacteirum fortuitum complex isolated from a pus culture was identified as M. wolinskyi by rpoB sequencing. Metallic foreign bodies and abscess were detected by radiologic imaging. The pus was incised and drained. Treatment comprised clarithromycin (500 mg every 12 h), amikacin (200 mg every 8 h), and ciprofloxacin (400 mg every 6 h). Conclusion We report the first case of facial skin and soft tissue infection with M. wolinskyi after multiple cosmetic procedures of filler injection and laser lipolysis. Increased occurrence of NTM infection in nosocomial settings suggests the importance of appropriate treatment including culturing and rpoB gene sequencing when patients who have undergone cosmetic procedures display symptoms and signs of soft tissue infection indicative of NTM infection.

We report the case of acute peritonitis caused by a rapidly growing mycobacterium in a chronic peritoneal dialysis patient, whose renal failure had been caused by diabetic glomerulosclerosis. The organism cultured from the peritoneal dialysis fluid was Mycobacterium wolinskyi . Peritonitis caused by M. wolinskyi in a chronic peritoneal dialysis patient has never been reported before.

Background. Surgical wound infections caused by rapidly growing mycobacteria developed in 15 women after insertion of breast implants from August to November 2003 at a single medical center. Methods. A case-control study was conducted that included the identified patients, as well as women who underwent breast operations at the same center who did not develop infections. The study was accompanied by an extensive environmental investigation. Isolates were identified by standard bacteriological methods and by comparison of their 16S rRNA, HSP65, RPOB, SODA, and RECA gene sequences. Isolates were compared by random amplified polymorphic DNA analysis and by pulsed-field gel electrophoresis. Results. The risk factors for infection included surgery performed by 1 specific surgeon (odds ratio, 21.3; 95% confidence interval, 3.64–125.6). Identical strains of mycobacteria were isolated from the infected wounds of the patients; from the eyebrows, hair, face, nose, ears, and groin of this particular surgeon; and from this surgeon's outdoor whirlpool. The isolates exhibited a biochemical profile overlapping that of Mycobacterium wolinskyi, but their sequences of 16S rRNA and HSP65, RPOB, SODA,and RECA genes differed. We propose the name \"Mycobacterium jacuzzii\" for this new species. DNA fingerprints of cultured isolates from the surgical wounds, areas of the surgeon's body that grow hair, and the surgeon's whirlpool were identical. When the surgeon discontinued his use of the whirlpool and began cleaning the hairy areas of his body with a shampoo containing triclosan, the outbreak ended. Conclusions. This outbreak brings to light the possibility of the colonization of human skin and human-to-human transmission of environmental mycobacteria during surgery that involves implant insertion.

Mycobacterium wolinskyi is a rapidly growing mycobacterium, first described in 1999 as a member of the group Mycobacterium smegmatis (Mycobacterium smegmatis, Mycobacterium wolinskyi and Mycobacterium goodii). Only 19 case reports all over the world have been described on literature, none of them in Brazil. On this report, it is described one case of infection after a mammoplasty procedure performed in a private health service in the county of Recife, Pernambuco, Brazil, in 2009. The mycobacteria specie was identified using biochemical tests and sequencing the specific gene rpoB. To treat the infection by Mycobacterium wolinskyi it was necessary to combine antibiotics for a long period of time associated with surgical procedures of the breast abscesses.