case_images: PMC3336232_01
case_images: Axial high-resolution CT scan showing the retroauricular fistula (white arrow), sclerotic mastoid and granulation tissue in the middle ear area (black arrow).
case_images: CRIM.ID2011-932608.001.jpg
case_images: PMC3336232_01_CRIM.ID2011-932608.001.jpg
case_images: fig1
case_images: CT scan of temporal bones showed the signs of the previous surgery, as well as inflammatory tissue in the right external auditory canal, the middle ear and mastoid (Figure 1). 
case_images: Granulomatous inflammation, Langhans cells, and caseation necrosis (100x).
case_images: CRIM.ID2011-932608.002.jpg
case_images: PMC3336232_01_CRIM.ID2011-932608.002.jpg
case_images: fig2
case_images: TBC, allowed to exclude a secondary TBC form. The histological examination of the granulation tissue showed caseous necrosis and specific granulation with epithelioid cells and Langhans type giant cells (Figure 2). 