NTM-SPN is often indistinguishable from malignancy. Although surgical resection is sometimes chosen for the diagnosis and treatment, the mass in this case shrank spontaneously. Careful observation is required to avoid unnecessary interventions.
Keywords: Mycobacterium avium; calcification; mass; nontuberculous mycobacteria; solitary pulmonary nodule.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.