Table 3 Evaluation of patients who had non-diagnostic radial-EBUS guided bronchoscopy

Malignant

n = 26

 Final method of diagnosis

  Percutaneous lung biopsy

12

  Surgical lung biopsy

9

  Radiologic progression of pulmonary metastases

2

  Transbronchial needle aspiration of associated lymph node metastases

1

  Repeat bronchoscopic biopsy with radial EBUS guidance

1

  Response to chemotherapy

1

Benign

n = 11

 Tuberculosis

  Final method of diagnosis

   Responded to anti-tuberculous therapy

3

   Percutaneous lung biopsy

1

   Surgical lung biopsy

1

 Infection

  Final method of diagnosis

   Responded to anti-microbial therapy

3

 Organising pneumonia

  Final method of diagnosis

   Repeat bronchoscopic biopsy with radial EBUS

2

   By different bronchoscopist

 Scarring

  Final method of diagnosis

   Interval stability on repeat imaging (up to 1 year)

1