ALK and inflammatory myofibroblastic tumor: ALK overexpression was detected in 58 of 62 (93.5%) patients.[3,4,6–8,10,12,13,20,24–27] ALK expression in female genital tract IMT appears to be frequent, especially when compared with other anatomic sites but ALK negative IMT may occur in the female genital tract as well,[6] particularly in adults.[8] As expected, given their myofibroblastic differentiation, IMT in our patient was positive for actin, IMTs are generally positive for smooth muscle markers such as actin (in 43/48, 89.6% patients), desmin (48/58, 87.7% patients), and vimentin (5/6, 83.3% patients) (Table 1  ).