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Biomedical subjects

F Pombo

Publications and source records attributed to F Pombo.

At least 37 records · Page 2Linked to original sources
PubMed1994

[Malignant pancreatic oncocytoma].

A pancreatic oncocytoma in a 77 year old man is described. A CT scan showed liver metastases three years earlier. The patient died from complications after surgery for a perforated duodenal ulcer, and at autopsy a primary tumor in the tail of the pancreas and several liver metastases were found. The morphologic and biologic features of this unusual tumor are discussed.

Adenoma, Oxyphilic↗
PubMed1993

Chylous ascites associated with acute pancreatitis in a patient undergoing continuous ambulatory peritoneal dialysis.

We report on a case of chylous ascites associated with acute pancreatitis secondary to gallbladder stone disease, in a patient undergoing continuous ambulatory peritoneal dialysis. The initial clinical presentation was one of bacterial peritonitis, with later appearance of chylous peritoneal drainage. Diagnosis was suggested by abdominal computed tomography and confirmed by surgical exploration. We discuss the main diagnostic keys of peritoneal dialysis-associated pancreatitis and the possible etiologic role of this entity in chylous ascites of these patients.

Acute Disease↗
PubMed1993

Percutaneous catheter drainage of tuberculous psoas abscesses.

Six patients with 7 tuberculous psoas or ilio-psoas abscesses were treated by CT-guided catheter drainage and chemotherapy. The abscesses (5 unilateral and 1 bilateral) were completely drained using a posterior or lateral approach. The abscess volume was 70 to 700 ml (mean 300 ml) and the duration of drainage 5 to 11 days (mean 7 days). Immediate local symptomatic improvement was achieved in all patients, and there were no procedural complications. CT follow-up at 3 to 9 months showed normalization in 5 patients, 2 of whom are still on medical therapy. One patient, who did not take the medication regularly, had a recurrent abscess requiring new catheter drainage after which the fluid collection disappeared. Percutaneous drainage represents an efficient and attractive alternative to surgical drainage as a supplement to medical therapy in the management of patients with large tuberculous psoas abscesses.

Adult↗
PubMed1992

Patterns of contrast enhancement of tuberculous lymph nodes demonstrated by computed tomography.

The purpose of this study was to evaluate the contrast-enhanced CT characteristics of pathologic thoraco-abdominal lymph nodes in 38 patients infected with Mycobacterium tuberculosis (30 without AIDS and eight with AIDS). Unenhanced scans of chest, abdomen and pelvis were also done in all cases. The CT attenuation values and the enhancement characteristics of the largest node or group of lymph nodes were evaluated in a dynamic sequence over a period of 10 min. On unenhanced CT the nodes were of low attenuation (less than 30 HU) in 18 cases and of soft tissue attenuation (greater than 35 HU) in 20 cases. Four post-contrast patterns of enhancement were found: (i) peripheral rim enhancement (n = 22); (ii) inhomogeneous enhancement (n = 8); (iii) homogeneous enhancement (n = 6); and (iv) homogeneous nonenhancing nodes (n = 2). Increase of attenuation and obliteration of perinodal fat was found in 13 cases, most of them with the peripheral rim enhancement pattern. Seven cases had a combination of enhancing patterns in the same nodal group. The central enhancement was usually moderate (mean, 30 HU) but was marked (greater than 60 HU) in three patients with the homogeneous enhancement pattern. Neither the nodal attenuation values nor the patterns of enhancement are characteristic of tuberculosis, however adenopathy showing peripheral rim-enhancement with relative low attenuation centres can suggest a diagnosis of tuberculosis in the appropriate clinical setting.

Adolescent↗
PubMed1992

[Bilateral adrenal hemorrhage secondary to heparin treatment: a case report].

Bilateral suprarenal haemorrhage (BSH) has not been often described as a cause of chronic suprarenal insufficiency. The diagnosis before death is difficult and it was rare until the CAT scan became a routine diagnostic tool. Of 25 cases reported since 1981, 23 were diagnosed by CAT scan. We report a case of a patient that developed bilateral suprarenal haemorrhage (BSH) during heparin therapy for pulmonary embolism. The early clinical picture resembled a septic shock, and the diagnosis of Addison disease was made later. We reviewed the medical literature and we emphasized the clinical problems in which we should suspect the diagnosis of BSH, where early therapy with steroids may be critical to save the patient's life.

Adrenal Gland Diseases↗
PubMed1991

Haemoperitoneum secondary to spontaneous rupture of hepatocellular carcinoma: CT diagnosis.

In Western countries, haemoperitoneum following rupture of hepatocellular carcinoma (HCC) is unusual. Three patients are presented in whom massive intraperitoneal haemorrhage secondary to spontaneous rupture of HCC was diagnosed by computed tomography (CT). CT demonstrated a peripheral hepatic tumour and free intraperitoneal fluid with areas of high-attenuation, representing acute blood-clot, close to the tumour in every case. In our opinion, CT is a valuable imaging modality in the diagnosis of ruptured HCC.

Aged↗
PubMed1990

Periportal-peripancreatic tuberculous adenitis. US and CT findings.

We present ultrasound (US) and computed tomography (CT) findings in 7 patients with periportal and peripancreatic tuberculous adenitis. In US scans, hypoechoic adenopathies were found in 6 patients while in the other one a hypoechoic, poorly marginated mass was seen. CT studies showed hypodense (25-35 HU) enlarged lymph nodes with immediate postcontrast peripheral rim enhancement in 3 patients. An infiltrating inhomogeneous mass was present in other patient and soft tissue density lobulated masses were found in delayed postcontrast scans of 2 patients. The US findings are of no help in distinguishing tuberculosis from other causes of adenitis. The CT appearance has been variable and only the hypodense nodes with peripheral enhancement in postcontrast scans are suggestive of this entity.

Adult↗
PubMed1983

Multiple hereditary gastrointestinal atresias: study of a family.

Two siblings with multiple gastrointestinal atresias, from stomach to rectum, are reported. The pathological findings obtained from surgical material and complete autopsies are stressed. This syndrome, first described in 1973, presents a unique combination of clinical, radiologic and pathologic findings and is probably secondary to a malformative process taking place early in intrauterine life and effecting the whole gastrointestinal tract.

Abnormalities, Multiple↗