Adrenal hematoma after nephrectomy

Complications after Nephron-sparing Interventions for Renal Tumors: Imaging Findings and Management

The two primary nephron-sparing interventions for treating renal masses such as renal cell carcinoma are surgical partial nephrectomy (PN) and image-guided percutaneous thermal ablation. Nephron-sparing surgery, such as PN, has been the standard of care for treating many localized renal masses. Although uncommon, complications resulting from PN can range from asymptomatic and mild to symptomatic and life-threatening. These complications include vascular injuries such as hematoma, pseudoaneurysm, arteriovenous fistula, and/or renal ischemia; injury to the collecting system causing urinary leak; infection; and tumor recurrence. The incidence of complications after any nephron-sparing surgery depends on many factors, such as the proximity of the tumor to blood vessels or the collecting system, the skill or experience of the surgeon, and patient-specific factors. More recently, image-guided percutaneous renal ablation has emerged as a safe and effective treatment option for small renal tumors, with comparable oncologic outcomes to those of PN and a low incidence of major complications. Radiologists must be familiar with the imaging findings encountered after these surgical and image-guided procedures, especially those indicative of complications. The authors review cross-sectional imaging characteristics of complications after PN and image-guided thermal ablation of kidney tumors and highlight the respective management strategies, ranging from clinical observation to interventions such as angioembolization or repeat surgery. Work of the U.S. Government published under an exclusive license with the RSNA. Online supplemental material and the slide presentation from the RSNA Annual Meeting are available for this article. Quiz questions for this article are available in the Online Learning Center. See the invited commentary by Chung and Raman in this issue.

Acute non-traumatic adrenal haemorrhage-management, pathology and clinical outcomes

Background

Acute adrenal haemorrhage is a rare medical emergency. The aim of the series was to study the clinical presentation and management of patients presenting with acute non-traumatic adrenal haemorrhage.

Methods

The records of patients presenting with an acute abdomen secondary to adrenal haemorrhage and treated in a tertiary endocrine surgical unit over a period of 6 years were reviewed.

Results

Of the 11 included patients, there were 4 males and 7 females; the median [range] age at presentation was 58 [27-89] years. All were initially managed conservatively for bleeding, except one who underwent angioembolisation to ensure hemodynamic stability. Two patients underwent percutaneous drainage of persistent collection and suspected sepsis. Biochemical workup showed hyper function with metanephrine excess in 1 patient. Adrenalectomy was performed in 5 patients after a median [range] of 10 [7-11] weeks. Histology showed benign pathology in 2 patients, malignant in 2 patients and necrotic tumour in 1 patient. Two patients died of disseminated metastatic disease at 5 and 2 months after presentation with bleeding. Conservative management in the other 3 patients was successful at a median follow up of 26 [6-66] months.

Conclusions

Acute adrenal haemorrhage is usually associated with an underlying pathology; which may be benign or malignant; functional or non-functional. Initial conservative management is preferred as it allows determination of functional status and elective surgery, if necessary.