[Acquired hemophilia as the initial manifestation of colorectal cancer's recurrence].

We report the case of an 86-year-old man presenting with a spontaneous hematoma in the left iliac muscle and previous diagnosis of colon cancer in 1998 (stage pT3N0M0) treated with transverse colectomy and considered in complete remission. After a complete study, it was possible to identify the presence of Factor VIII inhibitors antibodies that confirmed the presence of acquired hemophilia. During hospitalization the patient presented a lower gastrointestinal bleeding leading to the diagnosis of recurrence of a previously treated colorectal adenocarcinoma. He responded to initial therapy with systemic corticoids and anti-inhibitory coagulant complex which includes activated VII Factor [FEIBA].