Tulin Yuksel

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Endogenous ochronosis or alkaptonuria is a rare, autosomal recessive disease of tyrosine metabolism that is caused by a deficiency of the enzyme homogentisic acid oxidase. The disease results in the accumulation and deposition of homogentisic acid in the cartilage, eyelids, forehead, cheeks, axillae, genital region, buccal mucosa, larynx, tympanic(More)
Sarcoidosis is a chronic granulomatous disease of unknown etiology characterized by non-caseified granulomas in many different organs and systems. The disease most frequently manifests with bilateral hilar lymphadenopathy and infiltrations in the lungs and skin, as well as with eye lesions. It may mimic a number of systemic diseases and/or accompany them.(More)
Neutrophilic dermatoses comprise a heterogeneous group of disorders, which are characterized by inflammatory skin lesions that share a common histopathological feature, intense inflammatory infiltration consisting primarily of neutrophils, with no evidence of vasculitis. We describe a 75-year-old man with rheumatoid arthritis, who presented with(More)
Granuloma annulare (GA) is frequently associated with diabetes mellitus, malignant diseases and infectious diseases. 1 A recent study has shown that GA may be observed concurrently with autoimmune disease, including systemic sclerosis and dermatomyositis. 2 Herein, we describe a patient with the rare coexistence of granuloma annulare and chronic spontaneous(More)
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