[Spontaneous hemorrhage and arterial hypertension as complication of Adrenal Pseudocyst. Report of a case]. / Hemorragia espontánea e hipertensión arterial como complicaciones de un pseudoquiste suprarrenal. Presentación de un caso.

Adrenal Pseudocyst are uncommon and asymptomatic tumors. We report an unusual case who had previous high blood pressure and acute hemorrhage presented with abdominal pain and shock. Diagnosis was made with ultrasonography and computed tomography revealed the presence of large retroperitoneal hematoma around the superior pole of the left kidney. Urgent surgery was made with a complete excision of a 10 cm. tumor with preservation of adrenal tissue and the left kidney. Histopathological diagnosis was: Adrenal Pseudocyst. Blood pressure normalized after surgery.

[Primary renal lymphoma]. / Linfoma renal primario.

OBJECTIVE: To describe a case of primary renal lymphoma. MATERIAL AND METHODS: We presents a patient with a right renal mass which histological analysis revealed a non-Hodgkin Lymphoma. RESULTS: A 78-year-old male patient with right flank pain mass was referred to our Service. He was diagnosed of renal mass by imaging studies. Inmunohistochemical investigations revealed a B-cell-type lymphoma. He received combination chemotherapy with CHOP. CONCLUSIONS: Primary renal lymphoma is a rare disease whose existence has been questioned, because the kidney does not normally contain lymphoid tissue. Its clinical presentation is like any other renal tumor and its definitive diagnosis is by histology. Elective treatment is chemotherapy (CHOP).

[Intrascrotal metastasis in a renal cell carcinoma]. / Metástasis intraescrotal de un carcinoma renal.

The present article reports a case of intrascrotal metastasis of renal adenocarcinoma. This is an unusual case. A 66-year-old male patient undewent right radical nephrectomy and cavotomy for renal cell carcinoma with renal vein infiltration and thrombus in cava. Six months later the patient present with a nodulous enlargement intrascrotal and roots of penis. And he died 15 moths after nephrectomy. Usually intrascrotal metastases are a late event in the course after detection of a renal carcinoma.

[Intra-sinusal renal angiomyolipoma. Differential diagnosis from renal artery aneurysm]. / Angiomiolipoma renal intrasinusal. Diagnóstico diferencial con el aneurisma de arteria renal.

We report a case of atypical renal angiomyolipoma (AML) because of its clinic presentation like colic renal pain, its uncommon intrasinusal location, its low fatty content, and especially because of the diagnostic doubt with a renal artery aneurysm that could not be resolved before the surgery in spite of making Doppler ultrasound, renal one sided arteriography, computed tomography (CT) and magnetic resonance imaging (MRI). We gave up doing a percutaneous needle biopsy because of the location, the association with hematoma and the possibility of a vascular origin. It has been said that diagnostic images, mainly ultrasound and CT, have a high capacity to get a renal AML diagnosis before the surgery. However when there is an atypical characteristics association like we have talked about, dismissing other pathologies is necessary. We believe AML must be considered one of these because of its difficult differential diagnosis.