Abstract #127 Co-Secreting Adrenal Incidentaloma: a Rare Case of Pheochromocytoma with Acth-Independent Cushing’s Syndrome

Abstract Purpose Adrenal incidentaloma (AI) and adrenal masses in cases of subclinical Cushing’s syndrome (SCS) initially require follow-up imaging. In this study we used endoscopic ultrasound (EUS) as a method for high-resolution imaging. The aim was to evaluate the growth rate of AI and SCS by EUS. Materials and Methods This retrospective analysis included 93 out of 229 patients with AI or SCS who were investigated longitudinally by EUS in our university hospital between 1997 and 2013. The longitudinal follow-up required at least two investigations by EUS and evaluation of endocrine function. Plasma renin, serum aldosterone, 24 h urinary catecholamines and 2 mg dexamethasone suppression test were performed. EUS was performed at baseline and during follow-up. Each time, the maximum diameter was measured. Three groups were defined: non-functioning adenomas (NFA), non-functioning nodular hyperplasias (NFH) and SCS. Results 86 patients had non-functioning masses [NFM] (59 NFA, 48 NFH) and 7 patients had SCS (10 masses). At baseline the mean diameter was 19.4 (± 9.3) mm (NFM) and 19.6 (± 9.2) mm (SCS). The mean follow-up period was 31.6 ± 28.7 months. The estimated mean growth rates per year were low: They were 0.35 mm/yr [NFA], 0.02 mm/yr [NFH] and 0.53 mm/yr [SCS]. Furthermore, there was no malignant progression of any mass. Conclusion The growth rate as determined by EUS was low for all tumor entities observed in this study. There was no difference in tumor growth between the groups.

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An Uncommon Presentation of Adrenal Cyst with Subclinical Cushing’s Syndrome: A Diagnosis Dilemma

Case Reports in Endocrinology ◽

10.1155/2021/6662492 ◽

2021 ◽

Vol 2021 ◽

pp. 1-6

Author(s):

A. Tahri ◽

W. Abdellaoui ◽

S. Benyakhlef ◽

K. Boujtat ◽

I. Mahroug ◽

...

Keyword(s):

Cushing’S Syndrome ◽

Adrenal Incidentaloma ◽

Cushing's Syndrome ◽

Adrenocortical Adenoma ◽

Subclinical Cushing’S Syndrome ◽

Unique Case ◽

Partial Adrenalectomy ◽

Adrenal Cyst ◽

Uncommon Presentation ◽

Tomography Scan

Adrenal cysts are a rare entity that is usually nonfunctional and asymptomatic. Their association with adrenal neoplasms was rarely described in the literature. We report a unique case of a 40 -year-old woman who was referred for evaluation of a left adrenal incidentaloma with subclinical Cushing’s syndrome. The tumor was suspicious for malignancy regarding computed tomography scan (CT scan) features. Therefore, a laparoscopic left partial adrenalectomy was performed. Pathology examination showed multilocular spaces lined by endothelial cells which are compatible with endothelial adrenal cyst, associated to an adrenocortical adenoma. We further discuss the management of adrenal cyst with review of the literature.

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SUN-169 A Rare Case of Adrenocortical Carcinoma Presenting as Hyperaldosteronism Combined with Cushing’s Syndrome

Journal of the Endocrine Society ◽

10.1210/jendso/bvaa046.1512 ◽

2020 ◽

Vol 4 (Supplement_1) ◽

Author(s):

Emma Punni ◽

Jonea Lim

Keyword(s):

Adrenal Gland ◽

Cushing’S Syndrome ◽

Adrenocortical Carcinoma ◽

Rare Case ◽

Plasma Catecholamines ◽

Cushing's Syndrome ◽

Adrenal Crisis ◽

Pathology Report ◽

Dheas Level ◽

The Right

Abstract Introduction: Adrenocortical carcinoma (ACC) is a rare malignancy with poor prognosis. Most ACC cases are hormonally functional. Commonly produced hormones are cortisol, followed by adrenal androgens. Aldosterone secretion is quite rare (< 2%) (1). Co-secretion of multiple hormones is further rare. Case Presentation: A 59 year old female presented with progressive worsening hypertension. Initial biochemical evaluation confirmed primary hyperaldosteronism. Her potassium was low at 2.9 mEq/L (N: 3.5-5.3 meq/L). Aldosterone level was elevated at 23 ng/dL (N: < or = 28 ng/mL), renin value was 0.90 ng/mL/h (N: 0.25-5.82 ng/mL/h). Aldosterone Renin Ratio was 25. CT abdomen with and without contrast showed 2 lesions within the right adrenal gland. The larger nodule was 3.7 x 2.7 x 4.9 cm with an absolute washout of 61%. A smaller nodule was 2.3x1.8 cm with an absolute washout of approximately 64%. Left adrenal gland was unremarkable. Further biochemical workup showed plasma catecholamines and metanephrines were normal. A random cortisol value was 22.8 mcg/dL (N: 3.0-16.0 mcg/dL) with a low ACTH level of 3.3 pg/mL (N: 7.2 - 63.3 pg/mL). Given suspicion for adrenal Cushing’s syndrome, we further obtained a 24 hour free urinary cortisol which was elevated at 84.1 mcg/24 h (N: 4-50 mcg/24 h). 8 am Cortisol after an overnight 1 mg Dexamethasone failed to suppress at 17.5 mcg/dL (n<1.8 mcg/dL). DHEAS level was low at 14.1 ug/dL (N: 29.4-220.5 ug/dL). The patient eventually underwent a right adrenalectomy. Post-operatively, her cortisol was suppressed at 1.9 mcg/dL (8 am ref range: 4-22 mcg/dL), and Hydrocortisone replacement dose was initiated. Surgical pathology report was consistent with adrenocortical carcinoma. The patient continues to follow-up with the endocrinology and oncology department for treatment. Conclusion: This case is particularly interesting given the co-secretion of both aldosterone and cortisol by an adrenocortical carcinoma which has been reported in only a few cases in literature. The case highlights the importance of completing a comprehensive biochemical workup pre-operatively in patients with suspicious adrenal mass. There should especially be a low threshold for initiating workup for cortisol hypersecretion as early intervention can help avoid an adrenal crisis in the post-operative period for such patients. A low DHEAS level should raise suspicion for cortisol hypersecretion in a patient with adrenal lesions. As ACTH is the primary stimulant of DHEA, the suppression of ACTH secretion in the setting of adrenal Cushing’s syndrome can contribute to a low DHEAS level. Reference 1.Else, T et al. Adrenocortical Carcinoma. Endocr Rev. 2014; 35(2):282-326.

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