Psychological Effects of "Double Crisis" (COVID-19 Pandemic and Earthquakes) on Croatian Medical Students.

Introduction: In 2020. the COVID-19 pandemic presented an additional source of stress and anxiety not just to the general population but also to medical students who are, even under normal circumstances, constantly under pressure due to demanding student duties. In addition, they experienced a series of devastating earthquakes in and around the Zagreb region which altogether could have had compromised their psychological well-being.

Immunohistochemical Expression of Matrix Metalloproteinase-1 and Cyclooxygenase-2 in Cutaneous Squamous Cell and Basal Cell Carcinoma.

The most common nonmelanoma skin cancers (NMSC) are basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). The incidence of NMSC is 18-20 times higher than the incidence of melanoma. The Cyclooxygenase-2 (COX-2) and Matrix Metalloproteinase-1 (MMP-1) enzymes have both been linked to the development of these diseases but their exact significance is unknown.

Tattoo Pigment within Regional Lymph Nodes Mimicking Cutaneous Melanoma Metastasis.

Dear Editor, The diagnosis of malignant melanoma accounts for 1-2% of all cancer diagnoses, around 4% of all malignant skin diseases, and 80% of all skin cancer deaths (1). The prognosis depends on several factors including tumor size, Clark level, Breslow thickness, location, ulceration, and presence of metastases. Detection of lymph node metastasis is initially accomplished by clinical examination and by operative evaluation for occult metastasis using sentinel lymph node biopsy (SLNB) when indicated (2).

Changes in total body surface area and the distribution of skin surfaces in relation to body mass index.

Background: A correct estimation of total burn surface area is important since it is used for determining fluid resuscitation volumes, nutritional estimates and hospital admission criteria. Wallace's rule of nines is the most commonly used methods for this purpose. However, fat distribution is non-uniform and the total body surface area changes with obesity.