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A 24-year-old man presented with multiple pigmented lesions on his neck, trunk, and upper limb. The lesions were hyperpigmented, coalescent macular to papular lesions with scaling in a reticulate pattern. The patient was diagnosed with confluent and reticulated papillomatosis (CRP) of Gougerot and Carteaud. CRP is a rare disease that primarily affects young individuals and can be caused by bacteria or noninfectious factors such as diabetes and obesity. The patient was treated with oral minocycline, which resulted in complete clearing of the lesions. [Extracted from the article]

Background: Pityriasis versicolor (PV) is a superficial mycosis caused by Malassezia yeast; a lipophilic fungus. Dermoscopy may be a value addition in the diagnosis of PV in some cases, where results of KOH (potassium hydroxide) examination are ambiguous. There is paucity of Indian data on dermoscopy of PV. Materials and Methods: Thirty consecutive patients diagnosed clinically with pityriasis versicolor were recruited in this pilot cross sectional study.Patients were subjected to KOH mount of the skin scrapings from the lesions which were positive in all the patients.Dermoscopy was performed in all using Universal Serial Bus (USB) dermoscope [Dinolite AMZT 73915, Edge 3] and features were recorded for analysis. Results: Hypopigmented variant was the most common type (80%). Dermoscopic analysis revealed altered pigmentary network as most common finding (100%) followed by scaling seen in 25 cases (83.33%). Folliculocentric pattern was appreciated in 20 cases (66.67%). A characteristic contrast halo ring around the primary altered pigmentation was observed in 20 cases (66.67%). Invasion of hair follicles by yeast was evident in 6 patients (20%). Conclusion: Dermoscopy with characteristic features such as folliculocentricity, contrast halo sign, and yeast invasion of hair follicles can be a very useful aid in contributing towards diagnosing pityriasis versicolor. [ABSTRACT FROM AUTHOR]

Sebaceous carcinoma is a rare, aggressive cutaneous tumor most commonly involving the head and neck, especially the periorbital area. It has been associated with Muir-Torre syndrome, human papillomavirus infection, and radiotherapy. This case report describes an unusual clinical presentation of a large sebaceous carcinoma on the abdomen of an African-American male patient who was successfully treated with Mohs micrographic surgery. The case is reported due to the unusual location of the lesion on the abdomen and the rare occurrence of this tumor type in an African-American male. [ABSTRACT FROM AUTHOR]