UNLABELLED Synchronous occurrence of benign and malignant kidney tumours is very rare. We present the case of a 63-year-old female patient who underwent a bilateral partial nephrectomy after being diagnosed with bilateral kidney tumours by ultrasonography and a computed tomography scan. Histopathological analysis of the left kidney tumour mass revealed a chromophobe renal cell carcinoma. In the...

We have read with interest the article of Ding et al. (1), entitled “Comparison of biexponential and monoexponential model of diffusion-weighted imaging for distinguishing between common renal cell carcinoma and fat poor angiomyolipoma”, which was published in the Nov-Dec. 2016 issue of the journal. The study provides useful information. However, we would like to add a few comments. Angiomyolip...

Introduction Angiomyolipoma (hamartoma) of the kidney is a rare finding. Hajdu and Foote (1969) recorded an incidence of 0.31% in 8501 post-mortem cases. McCullough, Scott and Seybold (1971), Becker et al. (1973), Honey and Honey (1977) consider that 50-80% of renal hamartomas appear in patients with tuberose sclerosis. Angiomyolipomas without tuberose sclerosis are usually solitary and unilate...

A case of a 27 year-old patient who presented after medical management of a missed miscarriage with an acute abdomen is described. She was found to have a haemorrhagic angiomyolipoma, which was successfully treated radiologically. This case highlights the need to consider this differential in the presentation of acute abdomen in the context of a recent or concurrent pregnancy. It is the first c...

The authors report a case of a 41-year-old woman who was admitted to the emergency department of our hospital because of acute right flank pain. Laboratory investigations and cultures were negative. A transabdominal ultrasonography revealed a large mass of the upper pole of the right kidney as an incidental finding.

Renal angiomyolipoma is a rare tumor that can be either sporadic or found together with tuberous sclerosis or pulmonary lymphangioleiomyomatosis. These tumors are hormone sensitive and therefore tend to grow during pregnancy and their main complication is the risk of rupture. Optimal management is still controversial because there are very few cases reported in the literature. We expect that th...

Twenty separate infarction procedures with absolute ethanol were performed on eighteen renal tumors in seventeen patients at Department of Radiology, Seoul National University Hospital since 1982. Fifteen were hypernephroma cases and two were angiomyolipoma cases. The indications for renal infarction were the preoperative interruption of renal arterial flow in eight cases of hypernephroma, and ...

Lymphangioleiomyomatosis (LAM) is a rare multisystem disease leading to cystic destruction of the lung parenchyma and is associated with abnormal smooth muscle proliferation affecting airways, lymphatics, and blood vessels. LAM occurs sporadically or in association with the tuberous sclerosis complex (TSC). Recent evidence demonstrates the role of aberrant β-catenin signaling in TSC. To further...

A 22-year-old female presented with back pain and was discovered to have a right-sided abdominal mass. Computed tomography (CT) scan revealed a 9 cm enhancing right upper pole renal mass with suspicion for tumor thrombus into the right renal vein and possibly the inferior vena cava (IVC). Magnetic resonance imaging (MRI) confirmed tumor thrombus into the inferior vena cava approximately 3 cm be...

Epithelioid angiomyolipoma (EAML) is a rare renal mesenchymal tumor with malignant potential and is frequently associated with tuberous sclerosis complex (TSC). As metastasis of the tumor cells occur early, EAML is considered a potentially malignant tumor type and intrigues further research on it. Under the microscope, we could find the tumor was composed of atypical polygonal cells sheet mixed...