Person: ONSUN, NAHIDE
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Publication Open Access Poxvirus-induced angiogenesis after a thermal burn(2014-09-01) Biyik Ozkaya, DİLEK; TASKIN, Banu; TAS, Betul; ASIRAN SERDAR, Zehra; Demirkesen, Cuyan; Su, Ozlem; Onsun, NAHİDE; BIYIK ÖZKAYA, DİLEK; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEOrf (contagious ecthyma) is a zoonotic infection caused by a dermatotropic parapoxvirus that commonly infects sheep, goats, and oxen. Parapoxviruses are transmitted to humans through contact with an infected animal or fomites. Orf virus infections can induce ulceration, and papulonodular, pustular, or ecthymic lesions of the skin after contact with an infected animal or contaminated fomite. Rarely, orf virus provokes extensive vasculo-endothelial proliferation as a skin manifestation. Here, we present the case of an 8-year old female with poxvirus-induced vascular angiogenesis that developed 10days after a thermal burn. An 8-year-old female presented at our outpatient clinic with red swellings and a yellow-brown crust on them. After a thermal burn with hot water, she went to a clinic and the burn was dressed with nitrofurazone and covered for 2days. When the dressing was removed after 2days, nodules were seen in the burnt areas. When the clinical findings were considered with the histopathological features, a reactive vascular proliferation due to a viral agent was suspected. Following PCR, parapoxvirus ovis was detected. Viral infections such as pox virus can trigger pyogenic granulomas or pyogenic granuloma-like vascular angiogenesis. Infectious agents must be considered when dealing with pyogenic granuloma-like lesions.Publication Metadata only Verrucous Bowen’s disease on groin with dermoscopic and siascopic images(2017-05-06T00:00:00Z) CENGİZ, FATMA PELİN; EMİROĞLU, NAZAN; SU KÜÇÜK, ÖZLEM SU; ONSUN, NAHİDE; CENGİZ, FATMA PELIN; EMİROĞLU, NAZAN; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEPublication Metadata only Unilateral linear punctate palmar keratoderma(2014-05-01) Biyik Ozkaya, DİLEK; TAS, Betul; Su, Ozlem; UNAL CAKITER, Alkim; Tosuner, ZEYNEP; Demirkesen, Cuyan; Onsun, NAHİDE; BIYIK ÖZKAYA, DİLEK; SU KÜÇÜK, ÖZLEM; TOSUNER, ZEYNEP; ONSUN, NAHIDEPublication Open Access Demographic characteristics, aetiology, and assessment of treatment options in leukocytoclastic vasculitis.(2017-04-01) CAKıTER, AU; Kucuk, OS; OZKAYA, DB; TOPUKÇU, B; ONSUN, NAHİDE; SU KÜÇÜK, ÖZLEM; BIYIK ÖZKAYA, DİLEK; ONSUN, NAHIDEIntroduction: Vasculitides are a heterogeneous group of diseases characterized by inflammation of the blood vessel walls. Etiological factors include infections, drugs, connective tissue diseases, and malignancies. Aim: To examine the demographic characteristics, etiological factors, and treatment options in 75 patients with leukocytoclastic vasculitis. Material and methods: The study included 75 patients diagnosed with leukocytoclastic vasculitis at our clinic. The patients’ medical records were reviewed to determine their age, sex, presence of systemic symptoms, possible etiological factors, laboratory results, types of cutaneous lesions, locations of the lesions, treatment options, and disease course. Results: There were 43 women and 32 men. Cutaneous lesions affected only the lower limbs in 60 of the 75 patients (80%) and usually presented as palpable purpura (64%, n = 48). Arthralgia (26.7%, n = 20) was the most frequent extracutaneous symptom. Of the patients with secondary vasculitis, the most common causes were infections and drugs. The mean age of the patients with Henoch-Schönlein purpura was 26.8 years. There was no significant association between age and renal, gastrointestinal, or joint involvement. Conclusions: The most common form of vasculitis in our study was cutaneous leukocytoclastic vasculitis. In most of the patients it appeared to be idiopathic. Among drugs, antibiotics were the most common etiological factor. In 4 patients, the cutaneous leukocytoclastic vasculitis behaved like the paraneoplastic syndrome.Publication Metadata only Localized Darier-s Disease(2016-08-01) BAHALI, Anil G.; Su, Ozlem; Biyik Ozkaya, DİLEK; Dizman, DİDEM; Yildiz, PELİN; Demirkesen, Cuyan; Onsun, NAHİDE; BAHALI, ANIL GÜLSEL; SU KÜÇÜK, ÖZLEM; BIYIK ÖZKAYA, DİLEK; DİZMAN, DİDEM; YILDIZ, PELİN; ONSUN, NAHIDEPublication Open Access Comparison of Efficiency and Adverse Effects of Etanercept, Infliximab and Adalimumab in Patients with Psoriasis Vulgaris(2012-03-01) SEN, Ayse Pekdemir; Onsun, NAHİDE; Su, Ozlem; CINKAYA, Ayse; ONSUN, NAHIDE; SU KÜÇÜK, ÖZLEMBackground and Design: Our aim was to evaluate and compare the effects, side effects, and onset and duration of action of etanercept, infliximab and adalimumab on patients followed in our psoriasis outpatient clinic.Publication Metadata only The associations between peer victimization, psychological symptoms and quality of life in adolescents with acne vulgaris(2016-12-01) BAHALI, A. G.; BAHALI, K.; OZKAYA, D. Biyik; Bilgic, A.; Su, O.; ONSUN, NAHİDE; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEPublication Metadata only Correlation of clinical, dermoscopical and histopathological features of all subtypes of basal cell carcinoma(2017-06-01) DIZMAN, DİDEM; OZKAYA, D. B.; BAHALI, A. G.; DIZMAN, B. T.; YILDIZ, PELİN; TOSUNER, ZEYNEP; Demirkesen, C.; ONSUN, NAHİDE; SU, O.; DİZMAN, DİDEM; YILDIZ, PELİN; TOSUNER, ZEYNEP; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEPublication Open Access The relationship between pruritus and clinical variables in patients with psoriasis(2017-07-01) Su, Ozlem; Bahali, ANIL GÜLSEL; Onsun, NAHİDE; OZKAYA, Dilek Biyik; Dizman, DİDEM; TOPUKCU, Bugce; Uysal, Omer; BAHALI, ANIL GÜLSEL; ONSUN, NAHIDE; SU KÜÇÜK, ÖZLEM; DİZMAN, DİDEM; UYSAL, ÖMERPruritus is the most commonly occurring subjective symptom of dermatological disease. Published data on both prevalence and intensity of pruritus in psoriasis is limited. Objective: In this study we aimed to investigate the prevalence of pruritus and its relation with psoriasis area severity index, body mass index and presence of systemic disease in patients with psoriasis. Methods: We analyzed data of psoriatic patients diagnosed in our psoriasis outpatient clinic between March 2013 and June 2014 collected retrospectively from PSR-TR registration system. Results: In total, 880 patients were analyzed. Pruritus was more prominent in female patients. This difference was statistically significant. No significant associations were found between age of patients, clinical type of disease and pruritus. The itching was more common in patients with higher body mass index. Presence of pruritus was correlated significantly with severity of psoriasis. Five hundred and sixty of 880 patients had no systemic disease. The presence of pruritus was not related with presence of systemic disease. Existence of systemic disease with psoriasis has minimal effect on pruritus. Study Limitations: We did not evaluate intensity of pruritus. Conclusions: Pruritus is not mentioned within the classical symptoms of psoriasis. Pruritus in psoriasis is a very unpleasant symptom with great potential to impair patient’s quality of life and may exacerbate psoriasis as a Koebner phenomenon. Keywords: Patients; Psoriasis; PruritusPublication Open Access Dermoscopic Features of Small, Medium, and Large-Sized Congenital Melanocytic Nevi(2017-02-01) Cengiz, FATMA PELİN; Emiroglu, NAZAN; OZKAYA, Dilek Biyik; Onsun, NAHİDE; CENGİZ, FATMA PELIN; EMİROĞLU, NAZAN; SU KÜÇÜK, ÖZLEM; ONSUN, NAHIDEBackground: Congenital melanocytic nevi (CMN) are present at birth. It is well known that the presence of large-sized congenital nevus in early life could predict a major risk of developing melanoma. Objective: To investigate the clinical and dermoscopic features of the CMN, to search for and highlight any differences between small-sized, medium-sized, large-sized CMN. Methods: A nonrandomized observational study was performed. A total of 108 melanocytic nevi were analysed by clinical and dermoscopic examination. Results: Of the subjects, 57.4% were aged less than 16 years, 42.6% were aged 16 and more. Of the nevi, 26 had reticular pattern (24.1%), 35 had globular pattern (32.4%), 13 had reticular-globular pattern (12.0%), 16 had homogeneous pattern (14.8%), 6 had reticular-homogeneous pattern (5.6%), 2 had globular-homogeneous pattern (1.9%), 7 had cobblestone pattern (6.5%), 3 had reticular patchy pattern (2.8%). Atypical dots and globules, focal hypopigmentation and perifollicular hypopigmentation are the most common dermoscopic features of CMN. The rarest dermoscopic feature is the blue-whitish veil. Conclusion: Most of the dermoscopic features related with dysplastic nevi up to the present, such as atypical dots and globules, focal hypopigmentation, perifollicular hypopigmentation were observed in CMN, in our study. Congenital nevus and dysplastic nevi may share the same dermoscopic features, therefore it is important to know it is found at birth or not.