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Biomedical subjects

S Córdoba

Publications and source records attributed to S Córdoba.

At least 19 recordsLinked to original sources
PubMed2006

[Atypical presentation of syringocystoadenoma papilliferum].

Syringocystoadenoma papilliferum is benign adnexal tumor derived from the sweat glands that is located in the head and neck in 70-80% of patients, and commonly presents as a papule or a solitary nodule. We report a case of syringocystoadenoma papilliferum with an atypical presentation given its location in the thigh and the peculiar histologic features, unrepresentative of this entity.

Adenoma, Sweat Gland↗
PubMed2004

Atypical pityriasis rosea and Hodgkin's disease.

Pityriasis rosea (PR)-like eruptions have been associated with several neoplasms and drugs. These eruptions may be atypical. To date, the association of Hodgkin's disease with PR-like eruptions has rarely been reported. We report a 37-year-old patient with clinical lesions of PR-like, systemic symptoms and lymphadenopathies, who was subsequently diagnosed with Hodgkin's disease.

Adult↗
PubMed2002

Photodynamic photorejuvenation.

BACKGROUND: The visible signs of photodamage are characterized by wrinkling, coarse skin texture, pigmentation alterations, telangiectases, and in some case actinic keratosis (AKs). Intense pulsed light (IPL) photorejuvenation has been shown to improve each of the different components of photodamaged skin except AKs. OBJECTIVE: To present photodynamic therapy with topical 5-aminolevulinic acid (ALA-PDT) using IPL as a light source for treatment of AK in patients having IPL photorejuvenation. METHODS: Seventeen patients with varying degrees of photodamage and AKs (total of 38 AKs) were treated with two treatments with a 1-month interval of ALA-PDT using IPL as a light source. RESULTS: Thirty-three of 38 AKs disappeared with two ALA-PDT treatments using IPL. The follow-up period was 3 months. The technique was very well tolerated. Erythema and crusting took 1 week to resolve in the AK area. The cosmetic results were excellent in all patients without pigmentary alterations or scarring. CONCLUSION: This study describes a new application of IPL technology. Patients who are candidates for photorejuvenation procedures presenting with AKs can now have AKs treated as part of the photorejuvenation process rather than necessitating separate topical therapy with 5-fluorouracil (5-FU) or cryotherapy. In addition, many patients with AKs may benefit from the combination treatment with 5-ALA and IPL.

Administration, Topical↗
PubMed2002

Photodynamic therapy with 5-aminolevulinic acid for recalcitrant familial benign pemphigus (Hailey-Hailey disease).

Familial benign pemphigus is a chronic, recurrent, autosomal dominant blistering disease that may significantly affect quality of life. Surgical methods are often needed to control flares in difficult cases. We describe the use of photodynamic therapy (PDT) with topical 5-aminolevulinic acid (ALA) followed by irradiation with incoherent light (ALA-PDT) in 2 patients with chronic, recalcitrant familial benign pemphigus.

Aminolevulinic Acid↗
PubMed2001

Water-induced pruritus in haematologically controlled polycythaemia vera: response to phototherapy.

BACKGROUND: Water-induced pruritus is characterized by the development of intense and widespread itching after contact with water at any temperature and without observable skin lesions. Around 40-52% of patients with polycythaemia vera (PV) have water-induced pruritus, and more than 20% of the patients continue with symptoms despite an adequate control of the underlying disease. The aetiology is unknown and treatment is often unsuccessful. We report a patient with a haematologically controlled polycythaemia vera and water-induced pruritus that responded to phototherapy. METHODS: An 83-year-old woman with haematologically controlled PV referred with intense water-induced pruritus without cutaneous lesions. Topical emollients and oral antihistamines were unsatisfactory and so phototherapy treatment (90% UVA/10% UVB) three times a week was commenced. RESULTS: Improvement was visible after 1 month and at the end of 3 months the pruritus had disappeared and treatment was stopped. CONCLUSION: It is considered that the successful treatment in this patient is due to the UVB radiation.

Aged↗
PubMed2000

Giant cell lichenoid dermatitis within herpes zoster scars in a bone marrow recipient.

Cutaneous lesions arising in herpes zoster (HZ) scars are rare. We report a 34-year-old woman with acute lymphoblastic leukemia underwent allogenic bone marrow transplant (BMT). Ten days after the BMT, she developed clusters of vesicles over the right neck, scapula, shoulder and chest. She was treated with intravenous acyclovir and foscarnet. One month after the vesiculous episode of HZ she showed 5 mm to 2 cm clustered flat violaceous lichenoid papules and confluent plaques within the HZ scars. Histopathologic examination revealed a inflammatory infiltrate present in the papillary dermis with granulomatous aggregated formed by histiocytes, multinucleated giant cells and lymphocytes. She was treated with topic steroids with significant improvement. Pathologic findings are similar to those of an unusual lichenoid reaction named "giant cell lichenoid dermatitis". We present the first reported case of giant cell lichenoid dermatitis at the sites of HZ scars.

Acyclovir↗
PubMed2000

Timed-kill curves for Cryptococcus neoformans isolated from patients with AIDS.

Infection with Cryptococcus neoformans is an increasing problem in immunocompromised patients, particularly those with acquired immune deficiency syndrome (AIDS). Amphotericin B and fluconazole are currently acceptable therapies for cryptococcal meningitis; however, their effects remain suboptimal and recurrence or treatment failure is still a problem. Antifungal susceptibility testing may be an important tool for guiding therapy, but for C. neoformans, a reliable method is still not available. This retrospective study evaluated minimal inhibitory concentration (MIC) for amphotericin B and fluconazole, and minimal fungicidal concentration (MFC) and timed-kill curves for amphotericin B against 16 clinical isolates of C. neoformans obtained from AIDS patients with cryptococcal meningitis. No correlation between clinical outcome and MIC was observed for amphotericin B. In selected cases, the MFC seemed to be a better predictor of outcome than MIC. In this study, amphotericin B timed-kill curves appeared to show a correlation with clinical outcome of the 16 patients with AIDS-associated cryptococcal meningitis. These in vitro tests must be further evaluated in prospective studies to confirm their potential usefulness for guiding cryptococcal meningitis therapy.

AIDS-Related Opportunistic Infections↗
PubMed2000

In vitro susceptibility studies of Cryptococcus neoformans isolated from patients with no clinical response to amphotericin B therapy.

The in vitro activities of three antifungal drugs alone and in combination were evaluated against five isolates of Cryptococcus neoformans using time-kill curves (TKC). The isolates were from AIDS patients who had either died or had failed to show a clinical response during amphotericin B (AMB) treatment. AMB, fluconazole (FCZ) and flucytosine (5FC), and combinations of the drugs (AMB plus 5FC, AMB plus rifampicin (RIF) and FCZ plus 5FC), were evaluated. With all five isolates AMB did not show fungicidal activity; instead, a persistent or tolerant effect was observed. Combinations of AMB plus 5FC and AMB plus RIF showed a clear synergic effect, except for one isolate tested with AMB plus RIF. In contrast, the FCZ plus 5FC combination did not inhibit growth of any isolate.

Acquired Immunodeficiency Syndrome↗
PubMed1999

Acute arsenic poisoning: clinical and histopathological features.

We report a woman with acute arsenic poisoning, who developed an erythroderma with vesicles and pustules after the ingestion of 8-16 g of sodium arsenite. Simultaneously, she presented a herpes simplex virus infection. Skin biopsies showed unique features which included multiple small pigment granules inside and outside the histiocytes. In our opinion, these findings are consistent with acute arsenic poisoning, and constitute the first histological description of this entity in skin.

Acute Disease↗