You may wonder what a foot is doing in a chest blog. The answer is obvious: because the foot belongs to a chest radiologist. These radiographs are of my own foot, where I noticed a painless swelling in the 4th right toe, present for about one year. Check the images below, leave me your thoughts and diagnosis in the comments, and come back on Friday for the answer.
1. Type 1 chondrosarcoma
2. Pigmented villonodular synovitis
4. None of the above