Respiratory infection
What key finding discarded the tuberculosis diagnosis?
negative IGRA
What was the final diagnosis?
MAC Lung Disease and resulting primary Addison's disease
(and the previously diagnosed type 1 diabetes)
What was the classification of Addison's disease seen in our patient?
Primary
What finding confirmed the MAC diagnosis?
Tissue biopsy showing MAC organisms (granulomas with acid-fast bacilli)
For how long had the patient been having fever before coming to the hospital?
4 weeks
What hormone is the one responsible for the electrolyte imbalance?
Aldosterone
Which of the diseases in differential diagnosis were supported by the finding of miliary pattern on the chest Xray?
All three of them (tuberculosis, histoplasmosis, MAC)
What previously diagnosed illness did the patient have that made her more susceptible to infection?
type 1 diabetes
What hormone alteration caused the hyperpigmentation?
Increased ACTH