Giant Hemosiderotic Adenodermatofibroma: A Case Report and Review of the Literature.

Adenodermatofibromas are an extremely rare subtype of dermatofibroma (DF) characterized by a dermal proliferation of spindle-shaped fibroblasts and histocytes, dilated glandular structures with apocrine secretion, and prominent vascular proliferation, with or without hemosiderotic features. We describe a recent extraordinary case of a hemosiderotic adenodermatofibroma in a 25-year-old female. We review histologic findings and theories behind etiology, as well as review the spectrum of clinical presentations for this lesion.

Primary cutaneous Ewing sarcoma in a young boy.

We report a 10-year-old boy with the challenging presentation of a left toe nodule that failed empiric treatments and was biopsied. Immunohistochemistry and florescence in situ hybridization enabled the diagnosis of Ewing sarcoma (ES). This case emphasizes the importance of including ES on the clinical differential to minimize diagnostic delays.