A 64 years old female patient has had seropositive rheumatoid arthritis (RA) for 30 years. She had been coughing up purulent, offensive sputum for the preceding five days and was feeling very lethargic and feverish with symptoms of a chest infection. She had treated with antibiotics three times in the past three months, for another chest infection, for cellulitis and for a UTI.
What will be the probable diagnosis? Source: GP Online. *This case is from Docplexus Editorial Team for educative purposes only.
