Coexistence of 2 contiguous but histologically different tumors within same adrenal gland
Not composite tumor (i.e., tumor with intermixed, differing cell types)
IMAGING
General Features
CT Findings
MR Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
DIAGNOSTIC CHECKLIST
Consider
Selected References
Zhou C et al: Functional adrenal collision tumor in a patient with Cushing's syndrome. Case Rep Endocrinol. 2020:7415762, 2020
Akkuş G et al: Diagnostic efficacy of 18F-FDG PET/CT in patients with adrenal incidentaloma. Endocr Connect. 8(7):838-45, 2019
Cicero G et al: Collision and composition tumors: rare conditions to remember in differential diagnosis of adrenal glands lesions. Quant Imaging Med Surg. 9(11):1902-3, 2019
Foresti M et al: Adrenal adenoma-hemangioma collision tumor: description of two cases. J Radiol Case Rep. 13(6):1-12, 2019
Pakalniskis MG et al: Adrenal collision tumour comprised of adrenocortical carcinoma and myelolipoma in a patient with congenital adrenal hyperplasia. J Med Imaging Radiat Oncol. 64(1):67-8, 2019
Khorsand A et al: Adrenal collision tumor composed of pheochromocytoma and diffuse large B-cell lymphoma: a case report. Int J Hematol Oncol Stem Cell Res. 12(4):249-52, 2018
Sung CT et al: Collision and composite tumors; radiologic and pathologic correlation. Abdom Radiol (NY). 42(12):2909-26, 2017
Diolombi ML et al: Diagnostic dilemmas in enlarged and diffusely hemorrhagic adrenal glands. Hum Pathol. 53:63-72, 2016
Lee HS et al: Adrenal collision tumor: coexistence of pigmented adrenal cortical oncocytoma and ganglioneuroma. Case Rep Surg. 2016:5790645, 2016
Piotrowski Z et al: Renal cell carcinoma and an incidental adrenal lesion: adrenal collision tumors. Urology. 85(3):e17-8, 2015
Shida Y et al: Composite pheochromocytoma of the adrenal gland: a case series. BMC Res Notes. 8:257, 2015
Untch BR et al: Imaging and management of a small cell lung cancer metastasis/adrenal adenoma collision tumor: a case report and review of the literature. World J Surg Oncol. 12:45, 2014
Katabathina VS et al: Adrenal collision tumors and their mimics: multimodality imaging findings. Cancer Imaging. 13(4):602-10, 2013
Anderson SB et al: Adrenal collision tumor diagnosed by F-18 fluorodeoxyglucose PET/CT. Clin Nucl Med. 35(6):414-7, 2010
Blake MA et al: Collision adrenal tumors on PET/CT. AJR Am J Roentgenol. 183(3):864-5, 2004
Related Anatomy
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Diagnostic Checklist
TERMINOLOGY
Abbreviations
Adrenal collision tumor (ACT)
Definitions
Coexistence of 2 contiguous but histologically different tumors within same adrenal gland
Not composite tumor (i.e., tumor with intermixed, differing cell types)
IMAGING
General Features
CT Findings
MR Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
DIAGNOSTIC CHECKLIST
Consider
Selected References
Zhou C et al: Functional adrenal collision tumor in a patient with Cushing's syndrome. Case Rep Endocrinol. 2020:7415762, 2020
Akkuş G et al: Diagnostic efficacy of 18F-FDG PET/CT in patients with adrenal incidentaloma. Endocr Connect. 8(7):838-45, 2019
Cicero G et al: Collision and composition tumors: rare conditions to remember in differential diagnosis of adrenal glands lesions. Quant Imaging Med Surg. 9(11):1902-3, 2019
Foresti M et al: Adrenal adenoma-hemangioma collision tumor: description of two cases. J Radiol Case Rep. 13(6):1-12, 2019
Pakalniskis MG et al: Adrenal collision tumour comprised of adrenocortical carcinoma and myelolipoma in a patient with congenital adrenal hyperplasia. J Med Imaging Radiat Oncol. 64(1):67-8, 2019
Khorsand A et al: Adrenal collision tumor composed of pheochromocytoma and diffuse large B-cell lymphoma: a case report. Int J Hematol Oncol Stem Cell Res. 12(4):249-52, 2018
Sung CT et al: Collision and composite tumors; radiologic and pathologic correlation. Abdom Radiol (NY). 42(12):2909-26, 2017
Diolombi ML et al: Diagnostic dilemmas in enlarged and diffusely hemorrhagic adrenal glands. Hum Pathol. 53:63-72, 2016
Lee HS et al: Adrenal collision tumor: coexistence of pigmented adrenal cortical oncocytoma and ganglioneuroma. Case Rep Surg. 2016:5790645, 2016
Piotrowski Z et al: Renal cell carcinoma and an incidental adrenal lesion: adrenal collision tumors. Urology. 85(3):e17-8, 2015
Shida Y et al: Composite pheochromocytoma of the adrenal gland: a case series. BMC Res Notes. 8:257, 2015
Untch BR et al: Imaging and management of a small cell lung cancer metastasis/adrenal adenoma collision tumor: a case report and review of the literature. World J Surg Oncol. 12:45, 2014
Katabathina VS et al: Adrenal collision tumors and their mimics: multimodality imaging findings. Cancer Imaging. 13(4):602-10, 2013
Anderson SB et al: Adrenal collision tumor diagnosed by F-18 fluorodeoxyglucose PET/CT. Clin Nucl Med. 35(6):414-7, 2010
Blake MA et al: Collision adrenal tumors on PET/CT. AJR Am J Roentgenol. 183(3):864-5, 2004
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