Multiple Cavitary Pulmonary Nodules Caused by Mycobacterium intracellulare / 가정의학회지

Nontuberculous mycobacteria (NTM) have been increasingly recognized as an important cause of chronic pulmonary infections. The Mycobacterium avium complex (MAC), which is composed of two species, Mycobacterium avium and Mycobacterium intracelluare, is the most commonly encountered pathogen associated with NTM lung disease. MAC pulmonary infection typically presents in a fibrocavitary form or a nodular bronchiectatic form. However, there have been atypical presentations of MAC pulmonary infections, including solitary pulmonary nodules (SPN). There have been several previous reports of SPN due to MAC infection in the United States, Japan, and Korea. In 2009, Sekine and colleagues reported a case of MAC pulmonary infection presenting with multiple nodules. To date, however, there have been no cases of NTM lung infection with multiple cavitary pulmonary nodules, and neither a fibrotic change nor nodular bronchiectasis. The present case showed a multiple cavitating nodular lung infection due to MAC, which is very rare and different from the typical presentation of MAC pulmonary infections. We also showed that percutaneous transthoracic needle aspiration can be a useful diagnostic tool to evaluate a case of multiple cavitary nodules.

Mujer con artritis reumatoidea, nódulos pulmonares cavitarios y úlcera de piel / A woman with rheumatoid arthritis,cavitary pulmonary nodules and skin ulcer

Rheumatoid arthritis (RA) more often affect women, but extra-articular manifestations ­ cardiac, cutaneous, gastrointestinal, nervous, ocular, pulmonary and renal, are predominant in men [1­7]. These changes are found in approximately 40-50% of active chronic disease [1, 5, 6, 8]. Skin nodules occur in up to 20% of cases, mainly if rheumatoid factor is positive [1-3, 5], and are related to small vessel vasculitis, similarly to digital changes and ulcers of extremities. Pulmonary nodules are associated with positive rheumatoid factor and anti-cyclic citrulinated peptide antibody; and can evolve with necrosis and central cavitations [1-3, 5-7]. The woman herein reported had longstanding seropositive RA with cavitary pulmonary nodules and indolent cutaneous ulcer in the left elbow

La artritis reumatoide (AR) afecta con mayor frecuencia a las mujeres, pero es extraarticular. manifestaciones cardíacas, cutáneas, gastrointestinales, nerviosas, oculares, Pulmonar y renal, son predominantes en los hombres [1­7]. Estos cambios se encuentran en aproximadamente el 40-50% de las enfermedades crónicas activas [1, 5, 6, 8]. Los nódulos cutáneos se producen en hasta el 20% de los casos, principalmente si el factor reumatoide es positivo [1-3, 5], y están relacionados con vasculitis de pequeños vasos, de forma similar a la digital Cambios y úlceras de extremidades. Los nódulos pulmonares están asociados. con factor reumatoide positivo y péptido citrulinado anticíclico anticuerpo; y puede evolucionar con necrosis y cavitaciones centrales [1-3, 5-7]. La mujer aquí reportada tenía una AR seropositiva de larga data con Nódulos pulmonares cavitarios y úlcera cutánea indolente en el codo izquierdo.