A Case of Mycobacterium genavense Infection that Manifested as an Erosive Lesion of Duodenum in a Patient with Advanced HIV Infection

Mycobacterium genavense는 최근에 알려진 미코박테륨으로서, 식욕 부진, 체중 감소, 설사, 림프절 병증 등 파종성 Myocobacterium avium-intracellulare complex 감염과 유사한 임상상을 보이며, 위장관 침범을 잘 하는 것으로 알려져 있으나 아직 국내에서 증례는 보고된 바가 없다. 저자들은 진행된 HIV 감염 환자에서 십이지장의 미란성 병변으로 발현한 Mycobacterium genavense 감염 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. 환자는 상복부 동통과 발열, 설사로 내원하였다. 십이지장의 미란성 병변에서 시행한 조직검사에서 항산균이 가득 차 있는 거품세포가 관찰되었으며, 이 검체에서 16S rRNA 유전자의 중합연쇄반응 검사를 시행하여 Mycobacterium genavense를 확인하였다.N

A case of Mycobacterium abscessus pneumonia in a patient with systemic lupus erythematosus

전신성 홍반성 낭창으로 3년 전부터 스테로이드를 복용 중이던 40세의 여자 환자가 발열과 기침을 주소로 내원하였다. 환자의 증상과 방사선학적 소견은 경험적인 항균제 투여에 반응이 없었으며 개흉 폐생검의 결과 항산균을 관찰할 수 있었고 객담 항산균 배양 검사에서는 신속 성장균을 발견하여 생화학적 검사와 분자 생물학적 검사로 Mycobacterium abscessus로 확인하였다. 감수성 검사 결과에 따라 imipenem과 amikacin을 정주 투여하여 환자의 증상과 방사선 소견을 모두 호전시킬 수 있었다. A 40-year-old female presented with fever and cough which had lasted for 3 months. Three years previously systemic lupus erythematosus had been diagnosed, and at that time 10mg of prednisone per day was prescribed. Crackles were heard at the base of the lung and her chest roentgenogram revealed diffuse infitrates in both lower lung fields. Despite of empirical antibiotics and antituberculous medication consisting of isoniczid, rifampicin and ethambutol, the patients condition deteriorated. We performed open lung biosy and numerous nodules with necrosis as well as acid fast bacilli were observed. After biochemical tests and sequencing, the organism was identified as Mycobacterium abscessus. The patient was treated with imipenem and amikacin ; patient's condition, as indicated by both symptoms and roentogenogram, subsequently improved.N

A Case of Diabetic Foot Infection due to Mycobacterium mageritense

Diabetic foot infection is one of the important complications in patients with advanced diabetes mellitus. Limb threatening infections such as osteomyelitis, abscess, and necrotizing fasciitis are frequently accompanied by the disease. Non-tuberculous mycobacterium (NTM) is a rare causative organism of diabetic foot infection. Thus, if one is not suspicious or meticulous, infection due to NTM will be easily overlooked and this will result in delayed diagnose and treat. Therefore, it is necessary to consider NTM as the causative organism if the wound does not respond to the conventional antibiotic treatment and the culture from the adequately obtained specimen reveals atypical acid-fast bacilli. We present a case of diabetic foot infection with osteomyelitis and abscess due to Mycobacterium mageritense, one of the rapid growing mycobacteria, that was successfully treated with surgical debridement and appropriate antibiotic treatment.N