TY - JOUR
T1 - Presentation and outcomes of adrenal ganglioneuromas
T2 - A cohort study and a systematic review of literature
AU - Dages, Kelley N.
AU - Kohlenberg, Jacob D.
AU - Young, William F.
AU - Murad, Mohammad Hassan
AU - Prokop, Larry
AU - Rivera, Michael
AU - Dy, Benzon
AU - Foster, Trenton
AU - Lyden, Melanie
AU - McKenzie, Travis
AU - Thompson, Geoffrey
AU - Bancos, Irina
N1 - Publisher Copyright:
© 2021 John Wiley & Sons Ltd
PY - 2021/7
Y1 - 2021/7
N2 - Objective: To describe the presentation and outcomes of patients with adrenal ganglioneuromas (AGNs). Design: Single-centre retrospective cohort study (1 January 1995 to 31 December 2019) and systematic review of literature (1 January 1980 to 19 November 2019). Patients: Diagnosed with histologically confirmed AGN. Measurements: Baseline clinical, imaging and biochemical characteristics, recurrence rates and mortality. Subgroup analysis was performed on tumours with histologic elements of ganglioneuroma and pheochromocytoma (ie composite tumours). Results: The cohort study included 45 patients with AGN, 20 (44%) of which had composite tumours. Compared to pure AGN, patients with composite tumour were older (median age, 62.5 vs. 35 years, p <.001), had smaller tumours (median size, 3.9 vs. 5.7 cm, p =.016) and were discovered incidentally less frequently (65% vs. 84%, p =.009). No recurrences or ganglioneuroma-specific mortality occurred during follow-up (range, 0–266 months). The systematic review included 14 additional studies and 421 patients. The mean age of diagnosis was 39 years, and 47% were women. AGNs were discovered incidentally in 72% of patients, were predominantly unilateral (99%) and had a mean diameter of 5.8 cm and an unenhanced computed tomography (CT) attenuation of −118 to 49 Hounsfield units (HU). On imaging, 69% of AGNs were homogenous, 41% demonstrated calcifications, and 40% were lobulated. Conclusions: AGNs are rare benign tumours that present with variable imaging features including large size, unenhanced CT attenuation >20 HU, calcifications and lobulated shape. Imaging characteristics can assist in establishing a diagnosis and avoiding an unnecessary adrenalectomy. The association of pheochromocytomas with AGNs is frequent. Diagnosis should include biochemical testing.
AB - Objective: To describe the presentation and outcomes of patients with adrenal ganglioneuromas (AGNs). Design: Single-centre retrospective cohort study (1 January 1995 to 31 December 2019) and systematic review of literature (1 January 1980 to 19 November 2019). Patients: Diagnosed with histologically confirmed AGN. Measurements: Baseline clinical, imaging and biochemical characteristics, recurrence rates and mortality. Subgroup analysis was performed on tumours with histologic elements of ganglioneuroma and pheochromocytoma (ie composite tumours). Results: The cohort study included 45 patients with AGN, 20 (44%) of which had composite tumours. Compared to pure AGN, patients with composite tumour were older (median age, 62.5 vs. 35 years, p <.001), had smaller tumours (median size, 3.9 vs. 5.7 cm, p =.016) and were discovered incidentally less frequently (65% vs. 84%, p =.009). No recurrences or ganglioneuroma-specific mortality occurred during follow-up (range, 0–266 months). The systematic review included 14 additional studies and 421 patients. The mean age of diagnosis was 39 years, and 47% were women. AGNs were discovered incidentally in 72% of patients, were predominantly unilateral (99%) and had a mean diameter of 5.8 cm and an unenhanced computed tomography (CT) attenuation of −118 to 49 Hounsfield units (HU). On imaging, 69% of AGNs were homogenous, 41% demonstrated calcifications, and 40% were lobulated. Conclusions: AGNs are rare benign tumours that present with variable imaging features including large size, unenhanced CT attenuation >20 HU, calcifications and lobulated shape. Imaging characteristics can assist in establishing a diagnosis and avoiding an unnecessary adrenalectomy. The association of pheochromocytomas with AGNs is frequent. Diagnosis should include biochemical testing.
KW - adrenal imaging
KW - adrenal mass
KW - adrenalectomy
KW - composite tumour
KW - pheochromocytoma
UR - http://www.scopus.com/inward/record.url?scp=85102846729&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85102846729&partnerID=8YFLogxK
U2 - 10.1111/cen.14460
DO - 10.1111/cen.14460
M3 - Article
C2 - 33721367
AN - SCOPUS:85102846729
SN - 0300-0664
VL - 95
SP - 47
EP - 57
JO - Clinical Endocrinology
JF - Clinical Endocrinology
IS - 1
ER -