Classical granulomatous diseases in the twenty-first century, Asymptomatic leprosy infection among blood donors may predict disease development and suggest a potential mode of transmission, Probable zoonotic leprosy in the southern United States, The armadillo as an animal model and reservoir host for, Red squirrels in the British Isles are infected with leprosy bacilli, Feline leprosy: two different clinical syndromes, Evidence of zoonotic leprosy in Para, Brazilian Amazon, and risks associated with human contact or consumption of armadillos, Thorns in armadillo ears and noses and their role in the transmission of leprosy, Transfer of leprosy bacilli from patients to mouse foot pads by Aedes aegypti, Persistence and distribution of M. leprae in Aedes aegyptii and Culex fatigans experimentally fed on leprosy patients, Arthropod feeding experiment in lepromatous leprosy, The role of arthropods in the transmision of leprosy, Bayesian model, ecologial factors & transmission of leprosy in an endemic area of south India, Incidence of cutaneous tuberculosis in patients with organ tuberculosis, Cutaneous tuberculosis overview and current treatment strategies, Pathogenesis of cervical tuberculous lymphadenitis: pathways to anatomic localization, Cutaneous tuberculosis: diagnosis and treatment, Diagnostic value of an enzyme-linked immunospot assay for interferon-γ in cutaneous tuberculosis, Hazards of setting targets to eliminate disease: lessons from the leprosy elimination campaign, The missing millions: a threat to the elimination of leprosy, Leprosy and stigma in the context of international migration, Environmental nonhuman sources of leprosy, Socioeconomic, environmental, and behavioural risk factors for leprosy in Northeast Brazil: results of a case-control study, Inequality and leprosy in Northeast Brazil: an ecological study, New findings in the pathogenesis of leprosy and implications for the management of leprosy, Reprogramming adult Schwann cells to stem cell-like cells by leprosy bacilli promotes dissemination of infection, Delayed diagnosis, leprosy reactions, and nerve injury among individuals with Hansen’s disease seen at a United States clinic, Type I interferon suppresses type II interferon-triggered human antimycobacterial responses, Early diagnosis of neuropathy in leprosy—comparing diagnostic tests in a large prospective study (the INFIR cohort study), Five-year experience with type 1 and type 2 reactions in Hansen’s disease at a U.S. travel clinic, Clinical course of erythema nodosum leprosum: an 11-year cohort study in Hyderabad, India, Continuing challenge of infectious diseases in India, Developing strategies to block the transmission of leprosy, Leprosy: too complex a disease for a simple elimination paradigm, Spatial epidemiology and serologic cohorts increase the early detection of leprosy, WHO Surveillance Network of Antimicrobial Resistance in Leprosy, Antimicrobial resistance in leprosy: results of the first prospective open survey conducted by a WHO surveillance network for the period 2009-15, Diffuse leprosy of Lucio and Latapí: a histologic study, Case report: two cases of leprosy in siblings caused by, Draft genome sequence of new leprosy agent, Insight into the evolution and origin of leprosy bacilli from the genome sequence of, Antimycobacterial treatment for early, limited, Mycobacterial toxin induces analgesia in Buruli ulcer by targeting the angiotensin pathways, Nontuberculous mycobacteria infections in immunosuppressed hosts, Anonymous mycobacteria in pulmonary disease, Disseminated Mycobacterium mucogenicum infection in a patient with idiopathic CD4+ T lymphocytopenia manifesting as fever of unknown origin, Submission, Review, & Publication Processes, ORCID record for Andrés F. Henao-Martínez, DIAGNOSIS OF CUTANEOUS MYCOBACTERIAL INFECTIONS. The management of extensive scrofuloderma sometimes requires surgical intervention. Nontuberculous mycobacteria (NTM) infections still represent a large group of insidious diseases hard to deal with. | Diffuse Lepromatous Leprosy of Lucio and LatapíMycobacterium lepromatosis was the cause of leprosy in two patients of Mexican origin who died of diffuse lepromatous leprosy (DLL) (100). 2) (47, 69). M. kansasii infection manifests predominantly as pulmonary disease. A combined therapeutic approach, including surgical drainage, debridement and prolonged treatment with combined antimicrobial agents, has been used in some cases of atypical mycobacteria. 7) (24, 42, 117). Similarly, phylogeographic studies of the tuberculous bacilli have shown that the dominant clone of smooth tubercle bacilli (Mycobacterium canettii) emerged in eastern Africa and later diversified into the Mycobacterium tuberculosis complex during the worldwide spread of TB by waves of human migration (5, 11). M. ulcerans is a slowly growing environmental mycobacterium causing infection that is considered to have an incubation period of 5 to 8 weeks, but this may be as long as six months in areas of endemicity (31, 109). Rapidly Growing MycobacteriaCutaneous NTM infections are transmitted via direct inoculation through skin barrier breaks, which may occur during trauma, surgical procedures, plastic surgery (including liposuction), injections, tattoos, acupuncture, and body piercings (Table 4) (1, 24, 42, 117). Mycobacterium haemophilumM. Microorganisms. Furthermore, M. leprae and M. haemophilum are phylogenetically related and also share ancestry with other mycobacterial species, such as M. marinum and M. ulcerans (35, 36, 119). Enferm Infecc Microbiol Clin. He has a Scopus H index of 17. Currently, the NTM group is also divided into two major subgroups defined by their ability to grow on solid culture media: (i) rapidly growing mycobacteria (RGM) and (ii) slowly growing mycobacteria (SGM) (Fig. The correct identification of the specific RGM infecting the skin will enhance … Leprosy is a mycobacterial infection caused by Mycobacterium leprae that tends to be chronic and to compromise human societies by producing peripheral nerve damage, limb loss, blindness, and disfiguring skin lesions (4, 72, 74). The most common cutaneous forms of acquisition of NTM involve direct inoculation via trauma (33), postsurgical infections (42), or iatrogenic acquisition with indwelling medical devices, plastic surgery, cosmetic procedures, or prosthetic implants (24, 42). Ecological data suggest that environmental factors, such as trauma or skin breaks during soil and water exposures, insect vectors, free-living amoebas, and animal reservoirs (e.g., armadillos, squirrels, felines, or other animals), influence leprosy transmission (39, 47, 49–63). Treatment of cutaneous TB follows the same recommendations as for other forms of TB, with multidrug therapy (MDT) and ideally adjusted by culture and susceptibility data (47, 67, 69). Clinical spectrum of leprosy and leprosy reactions (reversal reactions and erythema nodosum leprosum). People with chronic infections … There is some evidence of potential human-to-human transmission of Mycobacterium abscessus subsp. Further clinical and epidemiological research that advances our understanding of mycobacterial pathogens that infect the skin and soft tissues may improve our ability to prevent these infections and optimize their medical management. The ability to culture M. tuberculosis facilitates the diagnosis of the cutaneous disease, in contrast to M. leprae (47). 2020 Dec 18;16(12):e1009107. That is a blessing and a curse. Cutaneous involvement of M. kansasii is usually present in immunocompromised hosts and sometimes with concomitant pulmonary disease or disseminated disease (24, 37). 2020 Jul 27;9(8):450. doi: 10.3390/antibiotics9080450. BU is considered a neglected tropical disease (NTD) because most cases occur among impoverished populations, often causing an important disability burden (2, 15, 31, 32, 109). Infection caused by M. lepromatosis is responsible for this unique clinicopathological presentation, which is known as Lucio’s phenomenon (101, 102, 104, 106–108). One of the most common is Mycobacterium avium, which can cause symptoms similar to tuberculosis, such as cough, fever, fatigue, and weight loss. This form of cutaneous tuberculosis is also associated with infection caused by Mycobacterium bovis or bacillus Calmette-Guérin. Mycobacterial species are present in the environment in water and soil niches that are shared with humans (19, 21, 22). This form is also known as tuberculosis colliquative cutis. Nevertheless, since 2005, the number of reported new cases has remained consistently stable despite continued use of multidrug therapy (4, 93, 95). This form of cutaneous tuberculosis is also associated with infection caused by Mycobacterium bovis or bacillus Calmette-Guérin. 18. The precise mode of transmission remains to be elucidated, but M. ulcerans living in contaminated water can enter the host through insect bites, puncturing injuries, or skin trauma (31, 33). Infections due to NTM can produce pulmonary or extrapulmonary disease in immunocompromised hosts (1, 24, 42). Mycobacterial Species as Human PathogensThe genus Mycobacterium is part of the order Actinomycetales and the phylum Actinobacteria and belongs to a variety of environmental habitats, including natural waters, soils, and drinking water distribution systems (1, 20–23). He is a member of the Committee on Tropical Medicine, Zoonoses and Travel Medicine of ACIN. The clinical spectrum of cutaneous disease caused by M. marinum includes a solitary papule or nodule that may ulcerate and then spreads in a sporotrichoid pattern (lymphangitic spread) (Fig. He is the Director of the Tick-Borne Disease Center at Stony Brook. He has published more than 50 articles in journals indexed in ScienceCitationIndex, Medline, and Scopus (including Lancet Infectious Diseases). Molecular assays are useful in some cases. The most common one causes tuberculosis. In 1947, Mycobacterium ulcerans was identified as the cause of Buruli ulcer (BU) (2, 3, 31, 32, 109–111). Leprosy occupies a prominent position among infectious diseases due to its high frequency of disability and associated stigma (75–78). In England, Ireland, and Scotland, red squirrels may be infected and develop leprosy-like lesions due to M. lepromatosis (53). Humans encounter mycobacterial species due to their ubiquity in different environmental niches. Modes of acquisition, history of previous sensitization to Mycobacterium tuberculosis, and clinical features of the cutaneous presentations of tuberculosis. Dr. Franco-Paredes has participated in multiple projects in global health, focusing mainly on leprosy and Chagas disease. Molecular detection methods and phenolic glycolipid 1 (PGL-1) serological data in combination with spatial epidemiology increase detection of leprosy cases (98). Created 2008. The Ridley-Jopling staging system divides leprosy into tuberculoid, borderline (borderline tuberculoid, borderline borderline, and borderline lepromatous), and lepromatous forms (Fig. Reconstructive surgery may be indicated for severe forms of cutaneous TB such as lupus vulgaris (69, 71). This infection may present as a localized or disseminated disease in immunocompromised hosts, including those with HIV infection/AIDS, transplant recipients, and those receiving biological agents such as anti-TNF-α agents (119). In some of the British Isles, red squirrels may develop leprosy-like lesions due to either M. leprae or Mycobacterium lepromatosis (53). Free-living amoebas, including Acanthamoeba or Vermamoeba, may act as reservoirs of M. leprae and NTM (38–41). Histologically, intraneural or perineural granulomas may assist the pathologist in distinguishing leprosy from cutaneous tuberculosis (47). M. leprae is a noncultivable obligate intracellular pathogen with a slow division time that targets peripheral nerves by predominantly infecting Schwann cells and histiocytes and keratinocytes in the skin (72, 74, 78–90). Like disease caused by M. marinum or M. ulcerans, the cutaneous disease caused by M. haemophilum may present after salt water injuries (24, 36). The differential diagnosis of cutaneous TB includes other granulomatous conditions, including sarcoidosis, leprosy, leishmaniasis, fungal conditions (blastomycosis and chromoblastomycosis), Majocchi’s granuloma, halogenoderma, squamous cell carcinomas, orf disease (parapox virus), and syphilis (24, 47). Among patients with advanced immunosuppression, Mycobacterium kansasii, the Mycobacterium avium-intracellulare complex, and Mycobacterium haemophilum may cause cutaneous or disseminated disease. Buruli ulcer; Mycobacterium; Mycobacterium kansasii; Mycobacterium marinum; Mycobacterium ulcerans; cutaneous; leprosy; mycobacteria; nontuberculous mycobacteria; tuberculosis. We do not retain these email addresses. Sometimes it may start as a collection of reddish papules that coalesce to form plaques with serpiginous or verrucous borders with central clearing and atrophy. Cutaneous mycobacterial infections may cause a wide range of clinical manifestations, which are divided into four main disease categories: (i) cutaneous manifestations of Mycobacterium tuberculosis infection, (ii) Buruli ulcer caused by Mycobacterium ulcerans and other related slowly growing mycobacteria, (iii) leprosy caused by Mycobacterium leprae and Mycobacterium lepromatosis, and (iv) cutaneous infections caused by rapidly growing mycobacteria. Visceral tuberculosis (pulmonary or extrapulmonary) is rarely associated with concomitant cutaneous involvement (68). In a period of approximately 4 weeks, the nodule, plaque, or edematous area evolves into an ulcer with undermined borders. Recognise possible cutaneous myobacterial infections; Introduction. We report here 5 patients with cutaneous and/or soft tissue infection … He has been the director of the travel clinic at University of Colorado Hospital since 2016. Early diagnosis and treatment are crucial to minimize morbidity and prevent long-term disability (2, 3, 109). Primary-inoculation TB occurs after exogenous inoculation in individuals not previously sensitized to M. tuberculosis, and it represents a phenomenon analogous to the Ghon complex in the lung (47, 69). Copyright © 2018 American Society for Microbiology. Mycobacterium lepromatosis, a mycobacterial species related to M. leprae, is linked to diffuse lepromatous leprosy of Lucio and Latapí. Patients with M chelonae or M abscessus were older … (Lon), F.F.T.M R.C.P.S. Infection caused by Mycobacterium fortuitum associated with mesotherapy. Risk factors for acquiring major nontuberculous mycobacterial infections of the skin and soft tissues and medical and surgical recommendation. Among patients with advanced immunosuppression, Mycobacterium kansasii, the Mycobacterium avium-intracellulare complex, and Mycobacterium haemophilum may cause cutaneous or disseminated disease. Many of these patients presented with surgical wound infections (41, 116, 125). These organisms (called nontuberculous mycobacteria) are commonly present in soil and water and are much less virulent in humans than is Mycobacterium tuberculosis.Infections with these organisms have been called atypical, environmental, and nontuberculous mycobacterial infections. Hematogenous metastatic tuberculous abscesses occur among immunocompromised individuals and may present with single or multiple subcutaneous nodules that may potentially evolve into ulcers or draining sinuses without regional adenopathy (47, 69). 8). Mycolactone toxin induces an inflammatory response by targeting the IL-1β pathway: Mechanistic insight into Buruli ulcer pathophysiology. There is also some evidence suggesting that M. lepromatosis may be associated with severe leprosy reactions, but this association requires further confirmation (103, 107). In children, this infection usually presents as cervical lymphadenitis (35, 36). Mycobacterium kansasii leading to a sporotrichoid nodular lymphangitis of the right arm. Phylogenetic reconstructions of genomic sequences suggest that Mycobacterium marinum, Mycobacterium leprae, Mycobacterium ulcerans, and M. tuberculosis evolved from a common environmental ancestor (2, 15, 16, 19). The most frequent sites of involvement include the fingers and dorsum of the hands, followed by ankles or buttocks (Fig. This infection may occur among immunocompetent and immunocompromised hosts, including those with HIV infection/AIDS or with renal transplantation. Characteristic sporotrichoid nodular lymphangitic spread of Mycobacterium marinum. NOTE: We request your email address only to inform the recipient that it was you who recommended this article, and that it is not junk mail. An 11-year-old male demonstrating a destructive panniculitis causing ulceration with undermined borders, characteristic of Buruli ulcer. Early identification of new cases likely prevents further transmission, but, importantly, it may also reduce the risk of neurological dysfunction and disability associated with leprosy (96–98). Among the rapidly growing mycobacteria, it is the most common cause of lung disease (117). Some lesions may mimic scrofuloderma. Patients with M. haemophilum may also experience immune reconstitution events analogous to leprosy reactions or to paradoxical immune reactions seen after initiating antimycobacterial therapy in patients with M. tuberculosis infection (35, 36, 119). Susceptibility testing for M. leprae involves assessments of specific genetic markers of antimycobacterial resistance (99). The diagnosis of mycobacterial infections of the skin and soft tissues requires a low threshold of clinical suspicion given the broad spectrum of potential clinical presentations. Skin biopsies of cutaneous lesions to identify acid-fast staining bacilli and cultures represent the cornerstone of diagnosis. Identification of mycobacterial DNA in cutaneous lesions of sarcoidosis. from Universidad Peruana Cayetano Heredia in Lima, Peru, in 2003. These organisms are characterized by their staining and are identified as acid fast bacilli. Recent advances in leprosy and Buruli ulcer (Mycobacterium ulcerans infection). These events include waves of human expeditionary, military, or commercial migrations (8). Tuberculids are cutaneous disorders that represent hypersensitivity reactions to mycobacterial antigens. The number of new cases will reach the 4 million mark by 2020 (since 2000) (76). Clinically, BU affects predominantly the lower extremities (>55%) and less often the upper extremities or other body parts (31, 109, 111, 112) The toxin (polyketide), mycolactone secreted by M. ulcerans causes tissue destruction (111, 113), local immunosuppression through the inhibition of protein translocation into the endoplasmic reticulum of cytokines of the innate immune system, membrane receptors, adhesion molecules, and T-cell-dependent cytokines (114). Category III is when there is evidence of severe disease with dissemination, osteitis, osteomyelitis, or joint involvement (31, 109). Forms in immunocompromised hosts ( 120 ), M.D., M.P.H., is to. 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