[Clinico-radiologic diagnosis of Meckel's diverticulum. Three cases]. / Diagnóstico clínico-radiológico del divertículo de Meckel. A propósito de tres casos.

Three patients in whom a radiological diagnosis of Meckel's diverticulum was made, are presented. The clinical features and the different diagnostic methods employed for diagnosis are discussed in the light of the radiological findings and a review of the literature.

[Bull's eye radiologic lesions in lymphoma of the stomach. Apropos of 2 cases]. / Lesiones radiológicas en ojo de buey en el linfoma gástrico. A propósito de dos casos.

We present two cases of gastric lymphoma with radiologic bull's eye lesions in the stomach. One of the patients also had an intestinal leiomyosarcoma that was resected surgically. We underline the rarity of the occurrence of this type of image as a gastrointestinal manifestation of lymphoma, as well as its scant specificity.

[Gastrointestinal involvement in Kaposi's sarcoma associated with AIDS. Radiologic findings]. / Afectación gastrointestinal en el sarcoma de Kaposi (SK) asociado al SIDA. Hallazgos radiológicos.

Two cases are presented of Kaposi's sarcoma (SK) associated with AIDS and gastrointestinal affectation. The visceral extension of Kaposi's sarcoma has been related to a poorer prognosis, and in some cases, it is responsible for the appearance of symptoms, particularly gastrointestinal hemorrhage. The radiological patterns of presentation of the gastrointestinal lesions of Kaposi's sarcoma are described, this being the most frequent location of the disease after the skin and lymph nodes.

[Annular carcinoma of the colon. Differential diagnosis with spasms or colonic sphincters]. / Carcinoma anular del colon. Diagnóstico diferencial con espamos o "esfínteres" colónicos.

A case is presented of annular carcinoma of the colon, which appeared with radiological features of regularity of the spasms or pseudosphincters of the colon. A review is made of the radiological differential criteria of both entities.

[Intraduodenal diverticula. Apropos of 6 cases]. / Divertículos intraduodenales. A propósito de seis observaciones.

We present the clinicoradiologic study of 6 cases of duodenal diverticulum. We review the embryological theories of its formation, the form of clinical presentation, endoscopy and radiology. Its eventual differential diagnosis and possible therapy are discussed. An exhaustive review is made of the literature.