Mesenchymal hamartoma of the liver.

The case of a 19 yr-old female with abdominal pain, jaundice, and hepatomegaly is reported. A large mass replacing the left hepatic lobe, detected by scintigraphic and angiographic studies and also by means of ultrasound and transhepatic radio-opaque filling, proved to be cystic. A left hepatic lobectomy was performed. Pathologic examination revealed a mesenchymal hamartoma, a rather rare event in view of the patient's age. Prompt recovery followed surgery, and the patient is well and symptomless 1 yr after operation.

[Angiographic aspects of tumors of the islet of the pancreas]. / Aspectos angiográficos de los tumores de los islotes del páncreas.

Four patients with islet cell tumours were explored with selective angiography. The radiological findings of 3 insulinomas and 1 nonfunctioning tumor are described. The typical hypervascular pattern of parenchimatose phase was found in all. The three insulinomas were successfully treated surgically. The nonfunctioning tumor was not removed due to the pathologists original impression that it was a maligant tumor involving the portal vein. Angiographic pattern, etiology, differential diagnosis and causes of errors are discussed. The method is diagnostically useful and offers important precperative information thus reducing operating time and minimizing the magnitude of the surgery.

[Selective abdominal arteriography in the diagnosis of amebic liver abscess]. / La arteriografía selectiva abdominal en el diagnóstico del absceso hepático amibiano

Angiographic findings in 8 patients with final diagnosis of amebic hepatic abscess are presented. Avascular areas were found in 8 patients, arterial desplacement in 6, arterial stretching in 6, increased hepatic artery caliber in 2 and hypervascular periabscess zones in 3. Specificity of these findings is discussed.