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Biomedical subjects

F Burgos

Publications and source records attributed to F Burgos.

At least 37 records · Page 2Linked to original sources
PubMed1996

Kaposi's sarcoma with an intense parasitization by Leishmania.

Visceral leishmaniasis has been reported as a complication in patients infected with human immunodeficiency virus (HIV) who live in areas where leishmaniasis is endemic or in patients who have traveled to these areas. Kaposi's sarcoma has been found frequently in patients with acquired immunodeficiency syndrome (AIDS). We report a HIV-infected patient having visceral leishmaniasis associated with Kaposi's sarcoma in which a biopsy specimen obtained from a pigmented cutaneous lesion revealed the coexistence of a Kaposi's sarcoma pattern with Leishmania parasitic colonization.

AIDS-Related Opportunistic Infections↗
PubMed1995

Fine-needle aspiration cytology of superficial angiomyxoma (myxoid perifollicular fibroma): report of a case.

A case of superficial angiomyxoma arising in the areola of a 49-yr-old woman is presented, including both fine-needle aspiration cytology (FNAC) and histological study. The aspirate yielded a rich myxoid background with isolated fusiform cells, showing oval, monomorphic nuclei with minimal atypia. Sometimes these cells were arranged in small fragments without any specific pattern. The absence of mitotic figures, atypia, or cutaneous and breast epithelium suggested a benign myxoid stromal neoplasm. The final diagnosis was established on the excised mass by histopathologic study. The report of this entity in FNAC and the differential diagnosis with other myxoid lesions are discussed, and the feasibility of its cytological diagnosis by FNAC, helped by appropriate clinical information.

Adult↗
PubMed1994

[Arterial puncture in Spain. A follow-up of the SEPAR 1987 guideline. Sociedad Española de Neumología y Cirugía Torácica].

This study sought to evaluate the procedures used for measuring arterial gases in our hospitals and determine the level of compliance with the 1987 SEPAR guidelines. Questionnaires covering the obtention, transport, storage and analysis of samples, as well as familiarity with the guidelines were distributed to 150 pneumology, internal medicine, intensive care and emergency services; 78 centers responded (71% from pneumology departments). General information obtained was as follows: arterial puncture is carried out by nurses without anesthesia and using syringes for gases; the radial artery is used; with post-puncture pressure provided by the patient; the sample is analyzed within 15 minutes and cold storage is used. The department's own automatic analyzer is used. Buffered gases and solutions are used for calibration and quality control measures are rare. Some aspects of the guidelines are unfamiliar. We believe that an effort should be made to extend application of the guidelines in order to improve arterial blood gas analysis.

Arteries↗
PubMed1993

[Cytomegalovirus gastritis in AIDS: several clues for the diagnosis].

We report a case of a patient with AIDS, CMV gastritis and esophageal candidiasis that presented as epigastric pain resistant to H2-receptor antagonists, and fever. Of interest in this case is the presence of cytomegalic inclusion bodies together with oedema and inflamatory infiltrate on the biopsy specimen of gastric mucosa, whereas on endoscopic examination only mild congestion and thickening of cardial folds were present. A response with Ganciclovir was obtained. We stress the importance of histologic examination for inclusion bodies of endoscopically obtained biopsies as a quick diagnostic procedure. The treatment of the acute phase with Foscarnet and Ganciclovir is discussed.

Acquired Immunodeficiency Syndrome↗
PubMed1992

Intolerance to piroxicam in patients with adverse reactions to nonsteroidal antiinflammatory drugs.

To evaluate the tolerance to piroxicam in patients with urticaria induced by analgesic and/or nonsteroidal antiinflammatory drugs (NSAIDs), we carried out a 2-year study in an outpatient clinic. All the patients referred to the clinic for study entered a protocol for evaluation of intolerance to one or more drugs. If patients were allergic to at least two different NSAIDs they were allocated to group A, but if patients were allergic to only one they were considered as having selective intolerance (group B). Either piroxicam or placebo was administered under controlled conditions to both groups. In group A, five out of 18 patients had a positive response to piroxicam. In group B, in all the 25 cases studied a good tolerance to piroxicam was shown. These results indicate that in the group with intolerance to NSAIDs piroxicam induced a positive reaction in 27% of the cases, and that this drug should be administered with caution and with a previous controlled challenge in this type of patient. Piroxicam was well tolerated in the group with selective intolerance, indicating that mechanisms other than interference with the prostaglandin synthesis and release of inflammatory mediators participate in allergic reactions to NSAIDs.

Acetaminophen↗
PubMed1991

Colovesical fistula secondary to vesical gangrene in a diabetic patient.

We present a case of colovesical fistula secondary to vesical gangrene. Precipitating factors were diabetes and vesical distension caused by the obstruction of an indwelling catheter. This complication is an exceptional outcome in gangrenous cystitis and it requires emergency surgical treatment.

Aged↗
PubMed1991

[Colonic tuberculosis. Endoscopic diagnosis].

We present a patient with acute and severe abdominal pain, fever and mild tenderness elicited on deep palpation in the right lower quadrant. X-ray films of the chest and abdomen were normal. The ultrasonographic study, barium enema examination and colonoscopic study avoided a diagnostic laparotomy. A purified protein skin test (PPD) and the cultures on Lowestein medium were negative. The final diagnosis was ulcero-hipertrophic tuberculosis of the ascending colon, and was confirmed by the finding of positive acid fast facilli and granulomas with Langerhans cells in the colonic biopsy material. The colonic lesions disapplared at the end of the antituberculous treatment.

Aged↗
PubMed1990

Carcinosarcoma of the spermatic cord.

The first case of carcinosarcoma in the spermatic cord is reported in a 40-year-old man. The tumor was a 2.5 X 2 cm pseudoencapsulated formation located in the connective tissue of the spermatic cord among the blood vessels. Light microscopy examination of the neoplasm revealed two different histological patterns: epithelial and sarcomatous. Mitoses and atypias were infrequent in both types of areas. The epithelial cells formed papillary and gland-like structures stained with PAS, Hale and mucicarmine stains, and showed positive reaction for immunohistochemical demonstration of both keratin and epithelial membrane antigen. The lumen content of the gland-like structures reacted positively for the carcinoembryonic antigen. Electron microscopy revealed that the epithelial cells were joined by junctional complexes and displayed numerous short microvilli. The sarcomatous areas consisted of spindle cells embedded in a ground substance that occasionally presented myxoid changes. Mast cells and focal calcifications were seen. Sarcomatous cells showed positive reaction for vimentin but not for the other histochemical and immunohistochemical techniques mentioned above. The ultrastructure of sarcomatous cells was similar to that of epithelial cells except for the occurrence of small desmosomes instead of junctional complexes. The differential diagnosis with adenomatoid tumor and malignant mixed mesothelioma is discussed.

Adult↗
PubMed1990

Single-breath carbon monoxide diffusing capacity prediction equations from a Mediterranean population.

Because of unanswered questions about prediction equations for the single-breath carbon monoxide diffusing capacity (DLCO) and as part of a larger collaborative project, standardized DLCO measurements were carried out in a selected sample of 361 healthy nonsmoking volunteers (194 men and 167 women) living in the Barcelona metropolitan area (Spain). Except for the test FIO2 (0.18), the study essentially followed the American Thoracic Society (ATS) and European Community for Coal and Steel (ECCS) recommendations for standardizing the methodology of measuring DLCO. Prediction equations for ages 20 through 70 were calculated separately for both sexes. Simple linear equations using age, height, and body weight as independent variables predicted the DLCO indices (DLCO, VA, and DL/VA) as well as more complex equations. In addition, a complete analysis of the residuals (predicted measured values) showed that the assumptions of the multiple regression analysis (independence, homoscedasticity and Gaussian distribution of residuals) were fulfilled using simple linear equations. Correction for the instrumental and anatomic dead spaces decreased the DLCO an average of 4.7%. The standard error of estimates was lower than those reported from other series in the literature. The predicted values from this study were lower than those reported by some investigators and were in reasonable agreement with other studies. A portion but not all of the differences could be explained on the basis of recognized differences in testing methodology. The results of this study may be of value to clinical laboratories seeking predictive equations for DLCO most appropriate for their testing methodology and patient population, and may assist in the resolution of some controversies regarding differences among predictive equations for DLCO.

Adolescent↗
PubMed1990

[Kaposi's sarcoma in kidney transplant treated with cyclosporin and azathioprine].

We report on a renal transplant patient who had developed Kaposi's sarcoma with cutaneous involvement 20 days after transplantation. The patient had a functioning renal graft and was on immunosuppressive therapy consisting of prednisone, azathioprine and cyclosporine. Azathioprine and cyclosporine were discontinued and chemotherapy was instituted with vinblastine first and methotrexate later; however, Kaposi's tumor did not respond to the foregoing therapeutic regimen. Thirty-two months following transplantation, the kidney graft presented acute interstitial rejection that warranted graft removal. The patient is currently receiving treatment for Kaposi's sarcoma but tumor regression has not been achieved. We discuss the atypical course of this case in comparison with those reported elsewhere.

Azathioprine↗
PubMed1981

Pulmonary involvement in primary biliary cirrhosis.

The association of pulmonary fibrosis and primary biliary cirrhosis (PBC) remains controversial. To determine the frequency of pulmonary fibrosis in PBC, a carefully selected series of 14 PBC patients, seven patients with Sicca complex, and 14 control subjects have been studied. Seven of the 14 patients with PBC had Sjögren's syndrome, four of whom had some clinical evidence of pulmonary disease. Evaluation of ventilatory capacity, gas transfer factor, arterial blood gases, and lung mechanics were performed. Gas transfer was reduced in patients with PBC associated with Sjögen's syndrome and in patients with the Sicca complex. These results suggest that the respiratory, clinical, ad functional abnormalities found in PBC are related to the presence of an associated Sjögen's syndrome.

Adult↗
PubMedDate not supplied

Fine needle aspiration of breast myofibroblastoma. A case report.

BACKGROUND: The use of fine needle aspiration cytology (FNAC) for the diagnosis of breast diseases in men has received little attention. We report the cytologic and histologic findings of myofibroblastoma of the breast in a 52-year-old man. CASE: Smears disclosed irregular and cohesive sheets of cells, with ill-defined cytoplasm and oval nuclei containing single nucleoli. The nuclear membrane was frequently grooved, and occasional intranuclear cytoplasmic inclusions (pseudoinclusions) were also found. The background was clean and contained scarce collagenous stroma and fragments of myxoid material. To the best of our knowledge, there have been only seven previous reports of breast myofibroblastoma in which the cytologic features are well documented, and none of them mention the presence of pseudoinclusions. CONCLUSION: FNAC could suggest the diagnosis of this distinctly uncommon tumor if evaluated together with the clinical and radiologic findings.

Biopsy, Needle↗
PubMedDate not supplied

[Vesical actinomycosis: rare tumor of the urachus].

A female patient of child-bearing age using an intrauterine device (IUD) consulted our department for a hypogastric mass which turned out to be actinomycosis of the bladder. Antibiotic treatment resolved the infection and removal of the inflammatory mass was unwarranted since infected fistulous tracts had been observed. There appears to be a causal relationship with IUDs, as in genital actinomycosis. Due to the increasing use of contraceptive devices, we are likely to find this type of infection, which might be difficult to distinguish from malignant disease, increasingly frequent in urologic practice.

Actinomycosis↗