Browsing by Author "Durusoy, Cicek"

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Metachronous Occurrence of Granular Cell Tumor in Breast Skin and Scalp: Diagnostic Challenging Differentiating Benign from Malignant and a Literature Review
(2016) Akkaya, Hampar; Toru, Havva Serap; Ayva, Ebru Sebnem; Karabulut, Zulfikar; Durusoy, Cicek; 26881167
Granular cell tumor (GCT) is a Schwann cell related benign neoplasm of soft tissue. GCT is an uncommon entity that occurs in a wide variety of body sites, but it is generally presented in the skin, oral cavity, superficial soft tissue, and respiratory and digestive tracts. Most of the GCTs are benign but clinically and radiologically these may mimic malignancy. Histopathological diagnosis is gold standard for establishing the true nature of the lesion. GCT is most commonly solitary but in about 10% of cases can be multifocal, usually involving various skin and soft tissue sites versus involving various internal sites. Therefore, these can involve skin and soft tissue or submucosa and viscera. GCT is usually benign; however, local recurrence is common due to incomplete removal. Malignant cases are rarely reported in 1-2% of cases. In this study, we report clinical and histopathological findings of a 36-year-old woman with metachronous GCT in breast and scalp. The clinical features raise the question of whether these are metachronous benign GCTs or whether this is establishment of malignant behavior. The aim of this report is to present the histopathological and clinical features of GCT and the diagnostic challenge of differentiating benign from malignant GCT.
Nail and hair findings developing in patients treated for COVID-19 infection fluorescence of keratinized tissues on Wood's lamp in COVID-19 disease
(2022) Coban, Kubra; Durusoy, Cicek; 35174612
Background: The new severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) is the causative agent of coronavirus 2019 (COVID-2019) disease. A wide variety of symptoms of the disease has been frequently reported in the literature in recent years. However, information on the findings in keratinized tissues is still limited. Data on changes in keratinized tissues such as nails, teeth and hair, and oral mucousa due to drugs used in the treatment of this disease are also extremely insufficient. Aim With this study, it was aimed to evaluate the changes in the keratinized tissues of our patients with COVID-19, who are frequently encountered in the Ear Nose and Throat outpatient clinic. Materials and Method: The study was carried out on patients who applied to Baskent University Ear Nose and Throat clinic. There were 3 groups. The first group consisted of patients diagnosed with COVID-19 and received relevant medical treatments, the second group included individuals who have never experienced COVID-19 infection but have been vaccinated against COVID-19, and the third group is the control group with normal healthy individuals who have never been diagnosed with COVID-19 infection and have not been vaccinated so far. With the Wood's lamp, fluorescent changes in nails, hair, tooth, and the oral mucousa were recorded. Results: A total of 124(75 females, 49 males) patients were included in the study. Positive Wood's finding was significantly higher in COVID-19 group(Group 1) who received Favipravir when compared with individuals who did not receive Favipravir (p < 0.001). Wood's positivity was not detected in any of the individuals who did not use favipravir. The rate of determining Wood's positivity in favipravir users decreases after 58 days. Discussion: Accordingly, Favipravir accumulation in the kretainized tissues manifest positive Wood's sign in our study. Conclusion: The adverse effects of the accumulation of the drugs-mainly Favipravir-used in the treatment of COVID-19 disease, have not yet been clearly demonstrated so far. Revealing the findings in these tissues with this study will pave the way for investigating changes or drug sequestrations in other organs in the long term.