Relapsing subcutaneous nodules of the penis in a pediatric patient.

A 14-year-old boy presented with a history of non-tender, subcutaneous coalescing nodules located on the ventral-lateral aspects of the penis shaft for one year. Laboratory investigations for blood count and autoimmunity were within normal limits. Complete excision was performed, and on histology, the dermis showed necrobiotic material composed of altered collagen bundles, surrounded by a palisade of histiocytes and scattered lymphocytes, thus allowing a diagnosis of subcutaneous granuloma annulare.

Trichoscopy as a Tool to Evaluate Early Dissecting Cellulitis in Patients Affected by Hidradenitis Suppurativa: A Prospective Monocentric Observational Study.

Background: Dissecting cellulitis (DC) is a rare neutrophilic dermatosis that leads to cicatricial alopecia. Although DC and Hidradenitis suppurativa (HS) have similar characteristics, their association remains poorly understood.

Objectives: In this prospective observational study, we used trichoscopy to identify subclinical signs of DC in male patients aged 18 years or older, presenting with HS.

Angiosarcoma and Vascular Surgery: A Case Report and Review of Literature.

Angiosarcomas (AS) are rare and aggressive neoplasms originating from the endothelium: they represent less than 2% of all soft tissue sarcomas and usually have a poor prognosis. Although more often primary, different risk factors have been described and some cases are associated with vascular surgery. We present the case of an 84-year-old man who developed an AS on his thigh 3 years after a popliteal bypass with autologous saphenous vein.