{'fraction_non_alphanumeric': 0.01652892561983471, 'fraction_numerical': 0.011363636363636364, 'mean_word_length': 5.46, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Retroperitoneal Hematoma Presenting as an Adnexal Mass After Femoral Catheterization

BACKGROUND: One complication of femoral artery catheterization is postprocedure pelvic hematoma. These hematomas can be difficult to differentiate from adnexal masses. CASES: Two women who had undergone femoral artery catheterization presented with pelvic pain within 3 months of the procedure. Imaging studies revealed a nonspecific adnexal mass, and CA 125 levels were normal. Both women underwent exploratory laparotomy for an adnexal mass and were found to have an organized retroperitoneal hematoma. CONCLUSION: An organizing or well-formed retroperitoneal hematoma should be added to the differential diagnosis in a patient with a poorly defined adnexal mass who has had a recent femoral artery catheterization. In patients with a mass less than 10 cm and normal CA 125 (less than 35 units/mL), continued close observation or magnetic resonance imaging scan may be considered.