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Adrenal Lesions in Patients With (Attenuated) Familial Adenomatous Polyposis and MUTYH-Associated Polyposis.
Diseases of the Colon and Rectum 2017 October
BACKGROUND: The reported proportion of patients with familial adenomatous polyposis who have adrenal lesions varies between 7% and 13% compared with 4% in the general population; the prevalence of adrenal lesions in patients with attenuated familial adenomatous polyposis and MUTYH-associated polyposis is unknown. Data on the clinical relevance and clinical course are limited.
OBJECTIVE: We aimed to report on the frequency, characteristics, and progression of adrenal lesions in polyposis patients.
DESIGN: This was a historical cohort study.
SETTINGS: The study was performed at the Academic Medical Center, Amsterdam.
PATIENTS: All of the patients with familial adenomatous polyposis, attenuated familial adenomatous polyposis, and MUTYH-associated polyposis were included. Medical charts and imaging reports were analyzed for data on adrenal lesions. A radiologist reassessed all of the images. Patients had not routinely been screened for adrenal lesions.
MAIN OUTCOME MEASURES: The frequency, characteristics, and progression of adrenal lesions in patients with polyposis who underwent abdominal imaging were assessed. Findings were compared with a reference.
RESULTS: A total of 39 adrenal lesions were identified in 23 (26%) of 90 patients with familial adenomatous polyposis, 2 (18%) of 11 with attenuated familial adenomatous polyposis, and 5 (24%) of 21 with MUTYH-associated polyposis. Mean age at time of detection was 50.7 years (range, 17.1-83.3 y). Median lesion size at baseline was 1.4 cm (range, 1.0-5.0 cm) versus 1.7 cm (range, 1.0-5.7 cm) after a median of 3.5 years (range, 1.0-11.4 y). Two patients were diagnosed with a hyperfunctioning lesion, and 4 underwent adrenalectomy: 3 lesions appeared benign, and 1 was oncocytic of uncertain malignant potential. The OR for detecting at least 1 lesion in a patient with polyposis versus reference was 6.2 (95% CI, 3.2-12.3), with no significant differences in ORs among the 3 syndromes.
LIMITATIONS: The study was limited by its retrospective design.
CONCLUSIONS: Adrenal lesions are frequent in patients with polyposis who undergo abdominal imaging. They appear to follow a benign and slowly progressive course and are mostly nonhyperfunctioning. See Abstract Video at https://links.lww.com/DCR/A323.
OBJECTIVE: We aimed to report on the frequency, characteristics, and progression of adrenal lesions in polyposis patients.
DESIGN: This was a historical cohort study.
SETTINGS: The study was performed at the Academic Medical Center, Amsterdam.
PATIENTS: All of the patients with familial adenomatous polyposis, attenuated familial adenomatous polyposis, and MUTYH-associated polyposis were included. Medical charts and imaging reports were analyzed for data on adrenal lesions. A radiologist reassessed all of the images. Patients had not routinely been screened for adrenal lesions.
MAIN OUTCOME MEASURES: The frequency, characteristics, and progression of adrenal lesions in patients with polyposis who underwent abdominal imaging were assessed. Findings were compared with a reference.
RESULTS: A total of 39 adrenal lesions were identified in 23 (26%) of 90 patients with familial adenomatous polyposis, 2 (18%) of 11 with attenuated familial adenomatous polyposis, and 5 (24%) of 21 with MUTYH-associated polyposis. Mean age at time of detection was 50.7 years (range, 17.1-83.3 y). Median lesion size at baseline was 1.4 cm (range, 1.0-5.0 cm) versus 1.7 cm (range, 1.0-5.7 cm) after a median of 3.5 years (range, 1.0-11.4 y). Two patients were diagnosed with a hyperfunctioning lesion, and 4 underwent adrenalectomy: 3 lesions appeared benign, and 1 was oncocytic of uncertain malignant potential. The OR for detecting at least 1 lesion in a patient with polyposis versus reference was 6.2 (95% CI, 3.2-12.3), with no significant differences in ORs among the 3 syndromes.
LIMITATIONS: The study was limited by its retrospective design.
CONCLUSIONS: Adrenal lesions are frequent in patients with polyposis who undergo abdominal imaging. They appear to follow a benign and slowly progressive course and are mostly nonhyperfunctioning. See Abstract Video at https://links.lww.com/DCR/A323.
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