Keratoacanthoma (KA) is classically a benign skin neoplasm that occurs on damaged photo. But the relationship between squam cell carcinome and keratoacanthoma is still on. To date, no clinical or histological criteria can confirm the diagnosis. The very different biologic tendency of rapid onset and spontaneous regression seen in typical KAs has led many clinicians and dermatopathologists to view this lesion as a noninvasive benign entity distinct from SCC. Many authors suggest that there is no single histopathological diagnostic criterion to differentiate KA from traditional SCC. We report A cases of a patients with a Keratoacanthoma that behaved as an invasive SCC.
Buschke scleredema (scleredema adultorum) is a rare pathology of unknown cause. It is characterized by sclerodermiform thickening of the cutaneous tissues mostly in the trunk and shoulder areas, with respect of the extremities. Buschke scleredema is sometimes associated with monoclonal gammopathy, diabetes or infections. This skin disease rarely involves other organs mostly the heart, but also the lungs, skeletal muscles, esophagus, parotid glands, liver, spleen, pleurae, and eyes. We report a new observation of scleroderma adultorum in a diabetic patient.
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