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  • Author: Nataša Vidović x
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Andrija Jović, Nataša Vidović, Danijela Popović, Zorana Zlatanović, Slađana Cekić and Danica Tiodorović


Combined nevi are melanocytic lesions composed of two or more distinct types of melanocytic populations within the same lesion. Different types of combined nevi may form bizarrely shaped, multicolored skin lesions, making them one of the greatest melanoma mimickers. We report a 48-year-old female patient with suspicious skin lesion in the left lumbar region. Clinically, there was an oval, slightly asymmetrical lesion measuring 6 x 4 mm, showing multiple colors and shades of brown and black. A dermoscopic examination revealed a brown-bluish coloration in the right part of the lesion, while a fine pigment network with perifollicular halo was found in the left part of the lesion, suggesting the diagnosis of a combined nevus. Histological examination showed a poorly circumscribed proliferation of dendritic melanocytes in the superficial and deep dermis and proliferation of melanocytes in the dermoepidermal junction. A surgical excision of the tumor was performed, in order to confirm the dermoscopic findings. In conclusion, dermoscopy is useful in differentiating combined nevi from other melanocytic lesions.

Open access

Danijela Popović, Andrija Jović, Danica Tiodorović, Nataša Vidović and Ivana Graovac


Basal cell carcinoma (BCC) is the most common type of skin cancer and the most common type of tumor in the human population in general. Clinical variants of BCC include nodular, superficial, pigmented, morpheaform, cystic, metatypical types and fibroepithelioma of Pinkus. Giant BCC is a rare type of carcinoma, accounting for less than 1% of all cases of BCC. Most often they occur on the trunk. BCC belongs to the group of aggressive tumors, leading to the invasion of deeper tissues, and examples of metastasis of this type of tumor can be found in the reference literature. In this case report, we present a case of a 76-year-old female patient with a giant ulcerous form of basal cell carcinoma on the back.

Open access

Marijana Virijevic, Teodora Karan-Djurasevic, Irena Marjanovic, Natasa Tosic, Mirjana Mitrovic, Irena Djunic, Natasa Colovic, Ana Vidovic, Nada Suvajdzic-Vukovic, Dragica Tomin and Sonja Pavlovic



Mutations in the isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) genes are frequent molecular lesions in acute myeloid leukaemia with normal karyotype (AML-NK). The effects of IDH mutations on clinical features and treatment outcome in AML-NK have been widely investigated, but only a few studies monitored these mutations during follow-up.

Patients and methods

In our study samples from 110 adult de novo AML-NK were studied for the presence of IDH1 and IDH2 mutations, their associations with other prognostic markers and disease outcome. We also analyzed the stability of these mutations during the course of the disease in complete remission (CR) and relapse.


IDH mutations were found in 25 (23%) patients. IDH+ patients tend to have lower CR rate compared to IDH-patients (44% vs 62.2%, p = 0.152), and had slightly lower disease free survival (12 months vs 17 months; p = 0.091). On the other hand, the presence of IDH mutations had significant impact on overall survival (2 vs 7 months; p = 0.039). The stability of IDH mutations were studied sequentially in 19 IDH+ patients. All of them lost the mutation in CR, and the same IDH mutations were detected in relapsed samples.


Our study shows that the presence of IDH mutations confer an adverse effect in AML-NK patients, which in combination with other molecular markers can lead to an improved risk stratification and better treatment. Also, IDH mutations are very stable during the course of the disease and can be potentially used as markers for minimal residual disease detection.