Risk of Ankylosing Spondylitis in Patients With Endometriosis: A Population-Based Retrospective Cohort Study.

Objectives: Previous research has shown a possible relationship between endometriosis and autoimmune diseases. However, the relationship between endometriosis and ankylosing spondylitis (AS) is lacking. Therefore, we intended to find possible associations between endometriosis and AS using ICD-9 coding data in a population-based retrospective cohort study in Taiwan.

Intravenous leiomyomatosis of the uterus: A clinicopathological analysis of nine cases and literature review.

Objective: Intravenous/intravascular leiomyomatosis is characterized by intravenous proliferation of a histologically benign smooth muscle cell tumor mass that is non-tissue-invasive. Although benign, intravenous leiomyomatosis may cause remarkable systematic complications, presents significant diagnostic difficulties, and also is characterized by a relatively increased possibility of recurrence. We determine patients' characteristics, and recurrence and treatment of intravenous leiomyomatosis.