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Background: There is a huge spectrum of skin tumors which can be confused clinically with malignancies, particularly when they are pigmented or inflamed, and histopathological examination of a biopsy specimen is required to establish a definitive diagnosis and to facilitate appropriate intervention and follow up. Aim: To evaluate all skin tumors and categorize them according to their origin. Methods: The present study was conducted over a period of 4 years (July 1, 2013 to June 31, 2017) comprising of 1.5 years prospective and 2.5 years retrospective analysis in the departments of Dermatology and Pathology, at a tertiary hospital in North India. All specimens of skin tumors were analyzed grossly and microscopically. Immunohistochemistry was done wherever possible. Results: A total of 232 skin tumors were seen; of which 123 cases were benign (53.0%) and 109 cases were malignant (47.0%). The mean age of patients with benign and malignant skin tumors was 40.3 ± 19.9 and 60.8 ± 14.8 years, respectively. The most common site was face (n = 106; 45.7%) followed by limbs (n = 44; 19.0%). The male:female ratio of benign and malignant tumors was 1.01:1 and 1.31:1, respectively. Among the benign tumors, keratinocytic tumors were the commonest (n = 57; 46.3%) followed by the melanocytic tumors (n = 37; 30.1%) and appendageal tumors (n = 29; 23.6%). The most common malignant skin tumors were the keratinocytic tumors (n = 87; 79.8%) followed by 12 cases (11%) of hematolymphoid tumors and five cases (4.6%) each of melanocytic and appendageal tumors. Limitations: The lack of clinical and dermatoscopic correlation and inclusion of retrospective data are the limitations of this study. Conclusions: Skin tumors affect people of all ages. The benign tumors are seen in the younger age group as compared to malignant tumors. Face is the most common site and keratinocytic tumors are the most common skin tumors in both benign and malignant categories.

Sweet's syndrome is characterized by erythematous tender nodules and plaques over face and extremities. Fever, leukocytosis with neutrophilia, and a neutrophilic infiltrate in the dermis are characteristic features. Neutrophilic dermatosis of dorsal hands is a rare localized variant of Sweet's syndrome occurring predominantly over dorsa of hands. Various degrees of vascular damage may be observed on histopathology of these lesions. Both Sweet's syndrome and its dorsal hand variant have been reported in association with malignancies, inflammatory bowel diseases, and drugs. We report a patient with neutrophilic dermatoses of dorsal hands associated with erythema nodosum. He showed an excellent response to corticosteroids and dapsone.