Abscessed splenic hydatid cyst: sonographic and CT findings.

Splenic hydatid cyst abscess formation is extremely rare. We present a surgically proved case of abscessed hydatid cyst of the spleen with its appearance on sonography and computed tomography (CT). Although both imaging methods do not confirm a diagnosis of abscessed splenic hydatidosis, they are valuable examinations to support the diagnosis and define the extent of disease.

Evaluation of lymphocyte activation by flow cytometric determination of interleukin-2 (CD25) receptor.

Lymphocyte response to mitogens is a habitually-used test in the evaluation of the immune system. The usual method with [3H]thymidine yields results which are difficult to interpret. In our search for an alternative, we examined the feasibility of determining T lymphocyte activation by measuring interleukin-2 receptor (CD25) expression with flow cytometry.

Primary gallbladder carcinoma: imaging findings in 50 patients with pathologic correlation.

Different diagnostic imaging modalities [contrast cholangiography, ultrasonography, and computed tomography (CT)] in a large group of patients with proven gallbladder carcinoma are reviewed. Noninvasive cross-sectional imaging methods strongly correlated with the different gross pathologic types of gallbladder carcinoma. The most common observed type was a mass replacing the gallbladder (39%).

[Pleural effusion associated with primary lymphedema: a rare combination. Apropos of a case].

A case of exclusive association of pleural effusions and primary lymphedema, without ungual dystrophy is described. This isolated combination is an uncommon clinical condition with only 11 cases reported in the literature. The pathogenesis is characterized by aplasia-hypoplasia of the lymphatic vessels with consequent defective lymphatic drainage.

Peroneus longus tendon and peroneus brevis tendon dislocation. A case report.

Trauma that produces recurrent dislocation of the peroneal tendons often is mistaken for an ankle sprain, or occurs in conjunction with an inversion ankle sprain. Self-diagnosis and self-treatment may preclude accurate diagnosis and management. The authors present a case that illustrates this scenario and review anatomical considerations, the mechanism of the injury, and therapeutic options.

Hydatid disease of the spleen: imaging findings in nine patients.

Splenic involvement is uncommon in patients with hydatid disease. The radiologic and clinical findings in nine patients with splenic hydatidosis are described. The three men and six women were 41-76 years old (mean, 58 years).

Urticaria pigmentosa. Histaminuria and treatment.

We present the case of an adult patient with urticaria pigmentosa. The sudden presence of severe symptomatology (symptoms to mast cell mediators release), made us think of evaluating extracutaneous affection. Our results are consistent with recent reports in the medical literature.

Acoustic artifacts and reverberation shadows in gallbladder sonograms: their cause and clinical implications.

From among more than 7000 sonographic examinations of the gallbladder performed over a period of 2 years, different types of acoustic artifacts were observed in 42 patients. Artifacts originated in the gallbladder wall in 37 cases and within the lumen in 5 cases. Eighteen patients had symptoms related to the hepatobiliary area.

[Mesothelial cysts of the peritoneum in children].

The authors emphasize the existence of these cystic formations on the peritoneal surface. They point out that the exact diagnosis of the mesothelial cyst and the diagnostic workup with the cystic lymphangioma can only be done with an exhaustive histological examination.

Increased synthesis and production of prostaglandin E2 by monocytes from drug addicts with AIDS.

We analysed the production of prostaglandin E2 (PGE2) by monocytes in 11 drug addicts with AIDS and opportunistic infections and in 13 controls. In three patients and six controls we isolated the PGE2 fraction from culture supernatants of purified monocytes (greater than 95%) incubated in medium containing (3H) arachidonic acid, using silicic acid columns. In two of three patients PGE2-fraction values (21.

Inflammatory pseudotumor of the spleen: ultrasound and computed tomographic findings.

Inflammatory pseudotumor of the spleen is an extremely rare benign lesion characterized by a wide spectrum of nonspecific inflammatory and reparative changes. The ultrasound and computed tomographic (CT) findings of inflammatory pseudotumor affecting the spleen in an asymptomatic patient are reported. The CT scanning revealed a partially calcified mass showing a nonhomogeneous enhancement after contrast injection.

Eosinophilic cystitis: a therapeutic challenge.

Eosinophilic cystitis is a rare disease with only 42 cases reported since first described in 1960. We report a case in a twenty-four-year-old woman and present the different therapeutic alternatives. A review of all reported cases shows that except for children and male adults with benign prostatic hypertrophy, this is a chronic inflammatory process of unknown causation for which no specific therapy is available.

Antibiotic resistance and plasmid pattern of enterotoxigenic ST-a strains of Escherichia coli isolated in Puebla, México.

Antibiotic susceptibilities of 22 strains of Escherichia coli isolated from children from 0 to 3 years old at the University Hospital of Puebla were determined. Almost all strains were resistant to ampicillin, tetracycline, streptomycin, and kanamycin. Gel electrophoresis of DNA from 10 clinical strains of E.

The ten-year malpractice experience of a large urban EMS system.

Malpractice is a recognized and growing problem for physicians and hospitals, but it is difficult to ascertain the risk of malpractice in the prehospital arena. Dade County, Florida (greater Miami), with a population of 1.7 million, currently is served by 339 certified paramedics.

Tissue impedance and temperature measurements in relation to necrosis in experimental cryosurgery.

Tissue temperature and impedance were measured in dog skin during freezing in situ. The previously frozen skin was removed by punch biopsies 3 days later to permit microscopic evaluation of the extent of necrosis. The histologic observations were related to the temperature and impedance measurements in an effort to determine the usefulness of the monitoring techniques in clinical cryosurgery.

Heterotopic gastric mucosa: a case report.

A case of heterotopic gastric mucosa in discrete nodules of the duodenum is presented. Its radiographic and endoscopic appearance is described. The light and electron microscopic features are analyzed.

Effect of varying freezing and thawing rates in experimental cryosurgery.

Six different freezing/thawing programs, which varied freezing rate, duration of freezing, and thawing rates, were used to investigate the effect of these factors on cell destruction in dog skin. The range of tissue temperatures produced was from -15 to -50 degrees C. The extent of destruction was evaluated by skin biopsies 3 days after cold injury.

Uptake of technetium-99m methylene diphosphonate by fractured and osteoporotic bone after a pulse dose of vitamin D3.

The effect of a pulse dose of Vitamin D3 on uptake of [99mTc]MDP by fractured and osteoporotic bone, respectively, was compared with D3's effect on uptake by normal bone in rats. At 4, 7, and 14 days, respectively, after femoral fracture, basal uptake was significantly (p less than 0.005) increased at the fracture site by 336.