2024年7月11日 · Adrenal adenomas (alternative plural: adenomata) are the most common adrenal lesion and are often found incidentally during abdominal imaging for other reasons. In all cases, but especially in the setting of known current or previous malignancy, adrenal adenomas need to be distinguished from adrenal metastases or other adrenal malignancies.

2021年11月15日 · dedicated adrenal CT is preferred to determine if a 1-4 cm mass with density >10 HU is a benign adenoma wherever possible, the stability of a lesion should be assessed with any modality that has imaged the adrenals in the past (e.g. chest CT, PET-CT, abdominal ultrasound, lumbar spine MRI)

2024年1月26日 · Despite its small size, the adrenal gland is affected by a relatively large number of neoplastic entities: adrenal adenoma. adrenal myelolipoma. adrenal cortical carcinoma. adrenal pheochromocytoma. adrenal neuroblastoma. adrenal sarcoma. adrenal metastases. See also. adrenal lesions: for a more general list of adrenal masses

2024年11月26日 · Adrenal lesions cover a broad spectrum from benign to neoplastic entities. Due to increased use of cross-sectional imaging they are frequently detected as incidental lesions (incidentalomas).

2022年2月13日 · Adrenal hemangiomas are rare benign tumors that are usually incidentally identified (one example of an adrenal incidentaloma). Its significance mainly relates to the difficulty in differentiation from other malignant lesions.

2024年3月8日 · Cystic adrenal neoplasms are uncommon and only account for a minority of cystic adrenal lesions 3. There may be several histological types: adrenal adenoma 1. adrenal cortical carcinoma 1,2. adrenal epithelioid angiosarcoma 2. pheochromocytoma 1. teratoma (pediatric population) 4. Differential diagnosis. Consider adrenal cysts such as: adrenal ...

2024年12月26日 · Adrenal washout can be calculated using the density value of an adrenal mass on non-enhanced, portal venous phase and 15-minute delayed CT scans (density measured in Hounsfield units (HU)). It is primarily used to diagnose adrenal adenoma .

2023年2月6日 · There are numerous fat-containing adrenal lesions, often benign and non-functional 1. Benign lesions containing fat: adrenal myelolipoma. lipid-rich adrenal adenoma. adrenal lipoma. adrenal teratoma. adrenal angiomyolipoma. adrenal hibernoma. Malignant lesions may also occasionally contain fat: adrenocortical carcinoma: rarely contains a fat ...

2024年10月22日 · Adrenal myelolipomas are rare, benign and usually asymptomatic tumors of the adrenal gland characterized by the predominance of mature adipocytes. On imaging, they usually present as large masses with a variable amount of fat-containing components.

2018年7月20日 · Adrenal calcification is best assessed on CT where it can be differentiated from a calcified adrenal mass or lesion. CT also allows simultaneous characterization of any underlying lesions with size, density, enhancement, and washout.