Tan PSC, Perera R. A rare case of lymphadenitis and pulmonary disease caused by
Mycobacterium paraffinicum.
Respirol Case Rep 2019;
7:e00414. [PMID:
30906560 PMCID:
PMC6412971 DOI:
10.1002/rcr2.414]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/03/2019] [Accepted: 02/18/2019] [Indexed: 11/06/2022] Open
Abstract
With over 150 species, non-tuberculous mycobacteria are increasingly recognized to be important human pathogens that pose diagnostic and management challenges. We report a rare case of cervical lymphadenitis and pulmonary disease caused by Mycobacterium paraffinicum in a 64-year-old man who presented with three-month history of increasing right-sided painless neck lump. His medical history included rheumatoid arthritis, which was managed with leflunomide and methotrexate. Computed tomography scans of his neck and thorax revealed a right lower neck and supraclavicular fossa cystic mass with peripheral enhancement and bilateral multiple small pulmonary nodules. M. paraffinicum was cultured from a fine-needle aspiration of the mass. Two out of three sputa were acid-fast bacilli smear positive but cultures did not yield any viable organism. He developed spontaneous discharge of purulent material via a sinus, which drained over two months and recovered with a completely healed sinus without any further treatment.
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