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Dive into the research topics where Özben Yalçın is active.

Publication


Featured researches published by Özben Yalçın.


American Journal of Dermatopathology | 2017

Bullous Pyoderma Gangrenosum With Subungual Involvement Associated With Ulcerative Colitis.

Ezgi Aktaş Karabay; Aslı Aksu Çerman; İlknur Kıvanç Altunay; Özben Yalçın

Pyoderma gangrenosum (PG) is a rare inflammatory and ulcerative skin disease of unknown etiology characterized by neutrophilic infiltration of the dermis, mainly affecting the lower extremities. Bullous PG is a rare variant of this disease, usually associated with hematologic disorders. Here, we report a case of pathergy-positive bullous PG with subungual involvement associated with ulcerative colitis.


Dermatology practical & conceptual | 2015

Oyster-shaped hyperkeratotic plaques on the penis.

Engin Sezer; Julia S. Lehman; Özben Yalçın; İlter Tüfek; Selcuk Keskin; Emel Öztürk Durmaz; Sedef Sahin

A 26-year-old man presented with a one-week history of lesions on the glans penis. The patient also stated that he had recurrent episodes of genital warts, which had been electrocauterized on previous occasions. He denied trauma, medication and history of another skin disorder. Physical examination revealed remarkably thick and hard, hyperkeratotic, oyster-shaped scales adherent to multiple erythematous lesions on the glans penis. Hyperpigmented, clustered verrucous papules, which coalesced to form plaques, were also detected on the shaft of his penis (Figure 1). A shave biopsy from a hyperkeratotic lesion on the glans penis was performed; photomicrographs are presented in Figure 2A, B.


American Journal of Dermatopathology | 2015

Congenital Granular Cell Tumor of the Arm: A Rare Presentation.

Aslı Aksu Çerman; Damlanur Sakiz; Sezgi Sarikaya Solak; İlknur Kıvanç Altunay; Özben Yalçın

Congenital granular cell tumors are uncommon benign tumors of newborns that mainly affect oral mucosa, especially the maxillary alveolar ridge. They are predominantly seen in female newborns, and cutaneous involvement is extremely rare. In this report, we present a case of congenital granular cell tumor on the arm of one of the male monozygotic twins and discuss the differential diagnosis of granular cell phenotype.


Kocatepe Tıp Dergisi | 2018

SKALPTE ATİPİK FİBROKSANTOM OLGUSU

Özben Yalçın; Rabia Yakar; Canan Tanik; Fatih Mert Doğukan; Fevziye Kabukçuoğlu

Atipik fibroksantom nadir gorulen, dusuk dereceli bir neoplazm olup, siklikla gunese maruz kalan yasli hastalarda gorulmektedir. Fibroblastlardan kaynaklanan bu hastaligin tanisinda klinik, histopatolojik ve immunokimyasal ozelliklerinin incelenmesi ve boylece karsinom, melanom, malign fibroz histiyositom gibi malign bazi tanilardan ayrilmasi gerekmektedir. Olgularin buyuk cogunlugu benign olup metastaza nadir olarak rastlanmaktadir. Calismamizda 75 yasinda bir erkek hastada 1,5 ay once parietal alanda ortaya cikan, basvuru sirasinda palpasyonla sert uzeri hafif kanamali agrisiz noduler lezyon ile prezente olan atipik fibroksantom olgusu klinik ve patolojik bulgular esliginde sunulmustur. Olgunun metastatik lezyonu, lenfovaskuler veya derin invazyonu bulunmamaktadir. Tartisma bolumunde vaka ayirici tani acisindan diger bir takim hastaliklarla histopatolojik ve immunokimyasal olarak karsilastirilmistir. Son olarak secilen cerrahi tedavi yontemin yeterliligi degerlendirilmistir.


Journal of Cutaneous Medicine and Surgery | 2017

Annular and Polycyclic Erythematous Lesions in a Child

Kenyul Salaeva; Filiz Topaloğlu Demir; İlknur Kıvanç Altunay; Özben Yalçın; Kubra Esen Salman

Subacute cutaneous lupus erythematosus is a subtype of cutaneous lupus erythematosus characterized clinically with papulosquamous and/or annular polycyclic lesions on sunexposed areas, which typically resolve without scarring. Although the fifth decade is the average age of onset, it is occasionally seen in childhood. In the differential diagnosis of the annular lesions, dermatophytosis, granuloma annulare, erythema annulare centrifugum, and other annular lesions are considered, whereas papulosquamous lesions may mostly be confused with eczema and psoriasis.


Saudi Medical Journal | 2016

An extraordinary case of syphilis presenting with a labial ulcer

Filiz Topaloğlu Demir; Kenyul Salaeva; İlknur Kıvanç Altunay; Özben Yalçın

In the differential diagnosis of patients with ulcers on the lips characteristics like the duration of the ulcer, number, size, depth, shape, base, margins, and distribution are considered. Such ulcers arise from many diseases particularly, viral and bacterial infections, malignancies can also be responsible. Classic syphilitic chancres are painless erosions settled on hard papule; these are evident in the genital area in more than 90% of patients. This study describes a case of a 38-year-old female patient presenting with a painful ulcer covering 3 quarters of the upper lip showing settlement on erythematous, edematous, and indurated plaque covered with hemorrhagic crusts. The aim of this study was to consider differences between the classic syphilitic chancre typically found in the genital region from extragenital chancres and to raise awareness of the possibility of primary syphilis when patients present with painful ulcers on the lip.


Acta parasitologica Turcica | 2016

Cystic Echinococcosis: One Entity, Two Unusual Locations.

Yeşim Sağlıcan; Özben Yalçın; Ecmel Kaygusuz

We report two cases of cystic echinococcosis at unexpected locations. Patients were a 64-year-old man and 35-year-old woman. A cystic mass was incidentally found between the prostate and seminal vesicles in the male patient, using ultrasonography during a check-up for ischemic coronary disease. The female patient was admitted to the hospital with symptoms of cardiopulmonary disease, but her detailed radiological examination showed a cystic lesion in the interventricular septum of the heart. Both patients were operated, and examinations of the histologic sections revealed cyst walls consistent with echinococcal infection. Attention should be focused on this entity even in endemic areas, and pathologists should be aware of the histologic characteristics of this lesion, to avoid misdiagnosis as a nonspecific cyst.


Acta parasitologica Turcica | 2016

[Retrobulbar Hydatid Cyst: A Case Report].

Özben Yalçın; Tulay Basak; Rabia Yakar; Fatih Mert Doğukan; Erdem Ergen; Fevziye Kabukcuoglu

Hydatid cyst is an infectious disease caused by Echinococcus granulosus, transmitted by dogs and encountered mostly in liver and lungs. As the central nervous system involvement is considered, retrobulbar disease is seen pretty rarely. In this subject; a patient complaining from an impaired vision diagnosed as hydatid cyst disease via radiological imagings and histopathological findings.


SiSli Etfal Hastanesi Tip Bulteni / The Medical Bulletin of Sisli Hospital | 2015

Pitriyazis Likenoides et Varioliformis Akuta (PLEVA): Olgu sunumu

Aslı Aksu Çerman; Janset Erkul Arıcı; İlknur Kıvanç Altunay; Özben Yalçın

Pityriasis Lichenoides et Varioliformis Acuta (PLEVA): case report Pityriasis lichenoides et varioliformis acuta (PLEVA), is a sudden onset skin disease characterized by diffuse papulosquamous lesions with unknown etiology. Here, we report a 31-year-old patient with neurofibromatosis who had generalised papulosquamous lesions especially on flexural areas, accompanying fever, malaise and muscle pain.


Journal of Dermatology | 2015

Pigmented purpuric dermatosis-like sarcoidosis

Engin Sezer; Özben Yalçın; Emel Erkek; Sedef Şahin

Sarcoidosis is a chronic multisystem granulomatous disease of unknown origin. Recently, a purpuric variant of cutaneous sarcoidosis resembling pigmented purpuric dermatosis (PPD) has been documented. Herein, we describe another unusual case with clinical features mimicking PPD, characterized by brownish macules and flat‐topped papules with a slightly purpuric component on the legs and dorsum of the feet and histopathological features consistent with sarcoidosis. We designated this unusual clinical presentation as “PPD‐like sarcoidosis”.

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Engin Sezer

Gaziosmanpaşa University

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Emel Erkek

Kırıkkale University

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