Celia Requena

Instituto Valenciano de Oncologia, Valencia, Valencia, Spain

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Publications (48)129.5 Total impact

  • Article: Temporal Artery Involvement as the Presenting Sign of Thromboangiitis Obliterans.
    Journal of clinical rheumatology: practical reports on rheumatic & musculoskeletal diseases 03/2013; · 1.19 Impact Factor
  • Article: Auricular erythromelalgia: Report of a rare case.
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    ABSTRACT: Erythromelalgia is a rare disorder characterized by 3 major symptoms: warmth, redness, and burning pain. It involves the feet and, to a lesser extent, the hands, head, and ears. We report the case of a 27-year-old man presenting with a 15-year history of episodes with edema, local hyperthermia, and burning pain of both ears.
    Dermatology online journal 01/2013; 19(2):16.
  • Article: Malignant Chondroid Syringoma of the Face With Bone Invasion.
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    ABSTRACT: Malignant chondroid syringoma is a very rare type of malignant sweat gland tumor. Diagnosis is based on pathologic features but is complicated by the low frequency of this tumor. The authors report a new case of malignant chondroid syringoma, initially misdiagnosed as basal cell carcinoma, that exhibited very aggressive local behavior and was located on the face, a rare site for this tumor. The authors describe its histopathologic appearance and highlight the importance of including adenoid cystic carcinoma in the differential diagnosis.
    The American Journal of dermatopathology 10/2012; · 1.30 Impact Factor
  • Article: Subacute cutaneous lupus erythematosus after treatment with capecitabine.
    The Journal of Dermatology 09/2012; · 1.49 Impact Factor
  • Article: An unusual presentation of penile metastasis from prostatic adenocarcinoma.
    International journal of dermatology 09/2012; 51(9):1133-4. · 1.18 Impact Factor
  • Article: Acneiform eruptions induced by epidermal growth factor receptor inhibitors: treatment with oral isotretinoin.
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    ABSTRACT: The most common cutaneous side effects to epidermal growth factor receptor (EGFR) inhibitors are follicular or acneiform eruptions, nail disorders, xerosis, and desquamation. Although topical and oral antibiotics with or without topical corticosteroids usually are safe and effective treatment options for acneiform eruptions due to EGFR inhibitors, they are not always successful in refractory cases. We report 3 cases of severe acneiform eruptions induced by EGFR inhibitors that were successfully treated with oral isotretinoin. Complete response was observed in all 3 patients. We recommend oral isotretinoin for the management of acneiform reactions to EGFR inhibitors when the lesions persist or worsen despite antibiotic treatment.
    Cutis; cutaneous medicine for the practitioner 08/2012; 90(2):77-80. · 0.81 Impact Factor
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    Article: Variants at chromosome 20 (ASIP locus) and melanoma risk.
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    ABSTRACT: Agouti signaling protein (ASIP) locus on chromosome 20q11 is implicated, as shown by genome-wide association studies, in phenotype variation and melanoma risk. We genotyped 837 melanoma cases and 1,154 controls for 21 single nucleotide polymorphisms (SNPs) informative for 495 polymorphisms at the locus. Our data showed an increased risk of melanoma (odds ratio [OR] 1.27, 95% confidence interval [95% CI] 1.03-1.57) in carriers of the rs4911414 variant, located 120 kb upstream of ASIP. The main effect of rs4911414, as reported previously, was in tandem with a 10 kb adjacent polymorphism rs1015362; two constituted risk-associated haplotype/diplotype. Except for rs1015363, none of the 12 tagging SNPs, genotyped to cover 239.9 kb region with polymorphisms linked to rs4911414 and rs1015362, were associated with melanoma. Our data confirmed a previous association of melanoma risk (OR 1.82, 95% CI 1.37-2.41) with rs4911442, located in intron 5 of the nuclear receptor coactivator 6 (NCOA6) gene. The rs910871, one of the six variants, genotyped to cover NCOA6, showed an association with melanoma risk (OR 1.33, 95% CI 1.04-1.70). Both, rs4911442 and rs910871 were in moderate linkage with a, previously reported, risk-associated rs910873 polymorphism. A haplotype from the variants within NCOA6 showed an association with risk of melanoma (OR 1.49, 95% CI 1.17-1.88). Interaction between risk-associated polymorphisms and previously genotyped melanocortin receptor 1 (MC1R) variants, in our study, was not statistically significant. Nevertheless, the carriers of the variant alleles over the background of MC1R variants were at a higher risk than the carriers not enriched for MC1R variants. Our data confirmed the association of different variants at chromosome 20q11 with melanoma risk. What's new? People with freckles and moles tend to have a higher risk of skin cancer. Variation in the ASIP gene, which participates in pigment production, has been associated with melanoma risk in previous reports. In this study, Maccioni et al. compared genotypes of people with and without melanoma, looking for a genetic variant that associated with cancer risk. They found an increased risk of melanoma for carriers of a polymorphism upstream of ASIP, as well as a polymorphism within an intron region of a gene, NCOA6, which lies downstream of ASIP and encodes a protein that regulates transcription and may be involved in a tumor suppressor pathway.
    International Journal of Cancer 05/2012; · 5.44 Impact Factor
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    Article: Characterization of nonacral melanoma patients without typical risk factors.
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    ABSTRACT: A divergent pathway model to cutaneous melanoma is commonly accepted: sun sensitivity/chronic sun exposure and melanocytic instability. Although this dual model explains the development of most melanomas, clinical experience suggests other possible routes. The aim of this study was to explore the characteristics of patients who do not fit with these two pathways. We selected 818 patients with nonacral cutaneous melanoma and defined three groups: nevus-prone individuals, sun-sensitive individuals, and non-nevus-prone and non-sun-sensitive individuals. This group included patients without identifiable melanoma risk factors and comprised 52 patients (5.5% of the overall nonacral melanoma population). These patients were more frequently women, were more likely to present melanoma at a very young age (13.5% before 25 years), to have less frequent personal history of melanoma and remnants of pre-existing nevi, and to present tumors on the trunk and legs. We have identified a group of patients with fewer risk factors for melanoma that needs further studies to increase our understanding of melanoma development.
    Melanoma research 04/2012; 22(4):316-9. · 2.06 Impact Factor
  • Article: Fluorescence in situ hybridization for the differential diagnosis between Spitz naevus and spitzoid melanoma.
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    ABSTRACT: Requena C, Rubio L, Traves V, Sanmartín O, Nagore E, Llombart B, Serra C, Fernández-Serra A, Botella R & Guillén C (2012) Histopathology Fluorescence in situ hybridization for the differential diagnosis between Spitz naevus and spitzoid melanoma Aims:  The differential diagnosis between Spitz naevus and spitzoid melanoma can be extremely difficult, or even impossible. In recent years, many attempts have been made to find specific histopathological or immunohistochemical markers, although none has proved successful. Because the prognosis and treatment of each are very different, it is important to distinguish between these entities. We evaluated the ability of the fluorescence in situ hybridization (FISH) assay-designed to detect the copy number of the RREB1 (6p25), MYB (6q23) and CCND1 (11q13) genes and of centromere 6 (Cep 6)-in order to distinguish between Spitz naevus and spitzoid melanoma. Methods and results:  We evaluated 12 spitzoid melanomas and six Spitz naevi from our records. The diagnosis of both conditions was based on previously described histopathological criteria. We obtained valuable results for FISH in eight spitzoid melanomas and five Spitz naevi. Chromosomal aberrations were detected in seven of the eight spitzoid melanomas (FISH-positive) and in none of the five Spitz naevi. The FISH-negative spitzoid melanoma was the least typical in its group. Conclusions:  FISH was able to distinguish between Spitz naevus and spitzoid melanoma, with a sensitivity of 87.5% and a specificity of 100%. Our findings suggest that FISH could prove a useful tool in the differential diagnosis between these entities.
    Histopathology 04/2012; · 3.08 Impact Factor
  • Article: Facial extensive recurrent basal cell carcinoma: successful treatment with photodynamic therapy and imiquimod 5% cream.
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    ABSTRACT: Management of facial extensive recurrent basal cell carcinoma can be a challenge for dermatologists. Although the preferred technique is usually Mohs surgery, sometimes the patient's condition or predicted aggressive surgery make other options advisable. We describe a case of a giant recurrent basal cell carcinoma in the face of an old woman successfully treated by combined therapy with MAL-photodynamic therapy and topical 5%. The patient remains well and with no sign of the tumor, with very good cosmetic result two years after treatment. Management of extensive facial basal cell carcinoma with combined therapies, as photodynamic therapy followed by topical imiquimod, can be an option for selected cases such as ours.
    International journal of dermatology 04/2012; 51(4):451-4. · 1.18 Impact Factor
  • Article: The Use of a Biosynthetic Skin Substitute in Slow Mohs Micrographic Surgery.
    Dermatologic Surgery 01/2012; · 1.80 Impact Factor
  • Article: Characteristics of spitzoid melanoma and clues for differential diagnosis with spitz nevus.
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    ABSTRACT: The different features of spitzoid melanoma are not well characterized in the literature, and the lesion often has to be described in comparison with Spitz nevus. We evaluated the histopathological appearance of spitzoid melanoma by reviewing all spitzoid melanomas treated at our hospital and all referrals from 1998 to 2010. The final study sample comprised 18 cases, 11 from our institution and 7 referrals from other centers. We recorded clinical parameters (eg, age, sex, site, time between onset and excision, recurrence, and death) and a series of histopathological parameters (eg, size, ulceration, symmetry, Clark level, Breslow thickness, cell density, atypia, mitosis). Clinical and histopathological criteria were not available for the 7 referrals. Mean age was 35.2 years (15-56), and 8 patients were women. Mean size of the lesions was 7.27 mm (Clark III/IV and Breslow 2.51 mm), and these were found on the limbs and trunk. Cell density was high in 10 cases and atypia present in 9 (marked in 1). Mitoses were observed in 8 cases (atypical in 4, clusters in 4). Maturation was absent in 9 cases and zonation in 8. Our analysis revealed 5 previously undefined subtypes of spitzoid melanoma (genuine (7 cases), uniform (5 cases), packed (5 cases), polypoid (3 cases) and pigmented (2 cases)]. Four cases showed 2 patterns at the same time. The most useful parameters for the differential diagnosis were cell density, mitosis, zonation, infiltration pattern, and consumption of the epidermis. Assignation of a spitzoid melanoma to 1 of more of our 5 subtypes can enable a more confident diagnosis to be made.
    The American Journal of dermatopathology 01/2012; 34(5):478-86. · 1.30 Impact Factor
  • Article: A randomized pilot comparative study of topical methyl aminolevulinate photodynamic therapy versus imiquimod 5% versus sequential application of both therapies in immunocompetent patients with actinic keratosis: clinical and histologic outcomes.
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    ABSTRACT: Photodynamic therapy (PDT) and imiquimod are the treatments of choice for actinic keratosis (AK). As they have different mechanisms of action, it seems reasonable to assume that applying both treatments sequentially would be efficacious. We sought to determine which of these therapeutic modalities provides a better clinical and histologic response in patients with AK and whether sequential use of both was more efficacious than each separately. Patients were randomly assigned to one treatment group: group 1, PDT only; group 2, imiquimod only; or group 3, sequential use of PDT and imiquimod. The primary outcome measure was complete clinical response. Partial clinical response was defined as a reduction of more than 75% in the initial number of lesions. A complete clinicopathologic response was defined as lack of evidence of AK in the biopsy specimen. In all, 105 patients completed the study (group 1, 40 patients; group 2, 33 patients; group 3, 32 patients). Sequential application of PDT and imiquimod was more efficacious in all the outcome measures. More patients were satisfied with PDT than with the other two modalities (P = .003). No significant differences were observed among the 3 modalities and tolerance to treatment. Only one cycle of imiquimod was administered. The follow-up period was brief. Sequential application of PDT and imiquimod provides a significantly better clinical and histologic response in the treatment of AK than PDT or imiquimod monotherapy. It also produces less intense local reactions and better tolerance and satisfaction than imiquimod monotherapy.
    Journal of the American Academy of Dermatology 01/2012; 66(4):e131-7. · 3.99 Impact Factor
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    Article: Influence of genetic variants in type I interferon genes on melanoma survival and therapy.
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    ABSTRACT: Melanoma is an immunogenic tumor; however, the efficacy of immune-therapy shows large inter-individual variation with possible influence of background genetic variation. In this study we report the influence of genetic polymorphisms in the type I interferon gene cluster on chromosome 9p22 on melanoma survival. We genotyped 625 melanoma patients recruited in an oncology center in Germany for 44 polymorphisms located on chromosome 9p22 that were informative for 299 polymorphisms and spanned 15 type I interferon genes. Our results showed associations between time to metastasis/survival and two linked (r(2) = 0.76) polymorphisms, rs10964859 (C>G) and rs10964862 (C>A). The rs10964859 polymorphism was located at 3'UTR and rs10964862 was 9.40 Kb towards 5'UTR of IFNW1 gene. The carriers of the variant alleles of the rs10964859 and rs10964862 polymorphisms were associated with a reduced disease-free survival. The validation of data in an independent group of 710 patients from Spain showed that the direction of the effect was similar. Stratification based on therapy showed that the adverse effect on metastasis development was statistically significant in the patients from Spain who did not receive any treatment and were homozygous for variant allele of rs10964862 (HR = 2.52, 95% CI 1.07-5.90; P = 0.03). Patients homozygous for rs10964859 (HR = 2.01, 95% CI 1.17-3.44; P = 0.01) and rs10964862 (HR 1.84, 95%CI 1.03-3.27, P = 0.04) were associated to increased risk of death following metastasis. GTCGACAA haplotype, found in 8.8% of the patients, was associated with an increased risk of death (HR 1.94, 95%CI 1.16-3.26, P = 0.01). In conclusion, our results identified genetic variants in interferon genes that influence melanoma progression and survival with modulation of effect due to treatment status.
    PLoS ONE 01/2012; 7(11):e50692. · 4.09 Impact Factor
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    Article: Regression does not significantly underestimate melanoma thickness.
    Melanoma research 12/2011; 22(1):96-8. · 2.06 Impact Factor
  • Article: Chrysalis and negative pigment network in Spitz nevi.
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    ABSTRACT: Chrysalis, also named shiny white streaks, are white, linear structures only visible with polarized dermoscopy. They have been reported in several tumors included melanomas and Spitz nevi, and their histological substrate is believed to be dermal fibrosis. We have performed a correlation study between the dermoscopic and the histopathological features of 9 Spitz nevi. Chrysalis were present in 4 Spitz nevi (44%) and in all of them there was a high degree of fibroplasia. In one case, chrysalis, evident at the center of the lesion, progressively merged with negative pigment network at the periphery. We suggest that chrysalis and negative pigment network are manifestations of the same histopathological finding: increased collagen occurring at different levels of the dermis.
    The American Journal of dermatopathology 12/2011; 34(2):188-91. · 1.30 Impact Factor
  • Article: Gemcitabine-associated sweet syndrome-like eruption.
    Journal of the American Academy of Dermatology 12/2011; 65(6):1236-8. · 3.99 Impact Factor
  • Article: A germline variant in the TP53 polyadenylation signal confers cancer susceptibility.
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    ABSTRACT: To identify new risk variants for cutaneous basal cell carcinoma, we performed a genome-wide association study of 16 million SNPs identified through whole-genome sequencing of 457 Icelanders. We imputed genotypes for 41,675 Illumina SNP chip-typed Icelanders and their relatives. In the discovery phase, the strongest signal came from rs78378222[C] (odds ratio (OR) = 2.36, P = 5.2 × 10(-17)), which has a frequency of 0.0192 in the Icelandic population. We then confirmed this association in non-Icelandic samples (OR = 1.75, P = 0.0060; overall OR = 2.16, P = 2.2 × 10(-20)). rs78378222 is in the 3' untranslated region of TP53 and changes the AATAAA polyadenylation signal to AATACA, resulting in impaired 3'-end processing of TP53 mRNA. Investigation of other tumor types identified associations of this SNP with prostate cancer (OR = 1.44, P = 2.4 × 10(-6)), glioma (OR = 2.35, P = 1.0 × 10(-5)) and colorectal adenoma (OR = 1.39, P = 1.6 × 10(-4)). However, we observed no effect for breast cancer, a common Li-Fraumeni syndrome tumor (OR = 1.06, P = 0.57, 95% confidence interval 0.88-1.27).
    Nature Genetics 09/2011; 43(11):1098-103. · 35.53 Impact Factor
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    Article: Correlation between preoperative magnetic resonance imaging and surgical margins with modified Mohs for dermatofibrosarcoma protuberans.
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    ABSTRACT: Dermatofibrosarcoma protuberans (DFSP) is characterized by asymmetrical and poorly defined growth. Magnetic resonance imaging (MRI) has been proposed for the delimitation of this tumor. To study the utility of MRI in evaluating the depth of infiltration in DFSP and to compare the efficiency of clinical palpation with that of MRI in delimiting the invasiveness of DFSP. Observational, prospective study of DFSP cases. The MRI scans for all cases were compared with the exact histological infiltration plane obtained using modified Mohs micrographic surgery (MMS). Forty-three DFSPs were included: 22 primary, nine recurrent, and 12 extirpated with positive margins. Sensitivity for detecting deep invasion was 58% on examination using palpation and 67% using MRI. We present the largest series of DFSP cases studied using MRI published to date. In primary cases, MRI has greater sensitivity than palpation for detecting depth of infiltration (67% vs 58%). MRI seems to be useful in primary DFSP in locations other than the head, neck, and upper part of the thorax. MRI is not useful for confirming tumor persistence in extirpated DFSP with positive margins or for studying lateral extension in primary DFSP.
    Dermatologic Surgery 06/2011; 37(11):1638-45. · 1.80 Impact Factor
  • Article: Chemotherapy-related bilateral dermatitis associated with eccrine squamous syringometaplasia: reappraisal of epidemiological, clinical, and pathological features.
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    ABSTRACT: A characteristic cutaneous eruption related to the use of cytostatic chemotherapeutic drugs has been described in the literature. This condition appears to be characterized by an erythematous eruption, primarily affecting the intertriginous areas bilaterally, together with eccrine squamous syringometaplasia as the main histologic feature. We sought to establish the epidemiologic, clinical, and histologic characteristics of this poorly defined chemotherapy drug-related eruption. Retrospective data were collected from 21 consecutive patients with this clinical and histopathologic pattern who attended an oncology center between January 1999 and September 2009. Two skin biopsy specimens were obtained from all patients, with the first being taken within 24 hours of onset, and the second 72 to 96 hours after onset. The patients analyzed were predominantly female (72%), with a mean age of 52 years (range 10-69 years). The lesions presented clinically as bilateral erythematous plaques affecting both axillae (95%), groin (88%), and side aspects of the neck (48%). The main histologic feature in all cases was eccrine squamous syringometaplasia, characterized by the transformation of the eccrine cuboidal epithelium into two or more layers of squamous cells with intercellular bridges. The onset of the eruption appeared within 30 days (range 2-30 days) after the initiation of the cytostatic agent infusion. The lesions resolved with desquamation and postinflammatory hyperpigmentation. The same cutaneous pattern recurred in up to 50% of patients in whom the oncologist reintroduced the cytostatic treatment. Small sample size was a limitation. We suggest the term "chemotherapy-related bilateral dermatitis associated with eccrine squamous syringometaplasia" to describe this distinctive entity, which is primarily associated with pegylated liposomal doxorubicin infusions and chemotherapeutic regimens used in autologous bone-marrow transplantation.
    Journal of the American Academy of Dermatology 06/2011; 64(6):1092-103. · 3.99 Impact Factor

Institutions

  • 2005–2013
    • Instituto Valenciano de Oncologia
      Valencia, Valencia, Spain
  • 2009
    • University of Valencia
      • Departamento de Patología
      Valencia, Valencia, Spain
  • 2002
    • Fundación Hospital General Universitario de Valencia
      Valencia, Valencia, Spain
    • Universidad Autónoma de Madrid
      Madrid, Madrid, Spain