Hobnail Hemangioma (Superficial Hemosiderotic Lymphovascular Malformation) in Children: A Series of 6 Pediatric Cases and Review of the Literature

Targetoid Hemosiderotic Hemangioma With Spontaneous Remission and Recurrence in a Male Patient: A Case Report

Targetoid hemosiderotic hemangioma is a rare, characteristic, benign lymphovascular lesion that usually affects the trunk and lower limbs. It has a diverse clinical appearance. Most affected people are in their 20s. A violaceous solitary papule encircled by a pale, narrow region and an ecchymotic ring peripherally, mimicking a target, is the most prevalent clinical characteristic. In many cases, the reported dermoscopic signs and patterns of hemosiderotic hemangioma have been found to be adequate for establishing a clinical diagnosis. The following is a case of a 23-year-old male presenting with blue-black vascular lesions on the lateral aspect of the right deltoid with a red ecchymotic ring. The 2×1 cm-sized lesion has a history of spontaneous remission and reappearance. Based on dermoscopic findings, a diagnosis of targetoid hemosiderotic hemangioma was made.

Nonepithelial Tumors and Tumor-like Lesions of the Skin and Subcutis in Children

This overview of mesenchymal tumors presenting in the skin and/or subcutis in children brings together the range of neoplasms and hamartomas which are seen in this age-group. It is not surprising from the perspective of the pediatric or general surgical pathologist that vascular anomalies, including true neoplasms and vascular malformations, are the common phenotypic category. Since there is considerable morphologic overlap among these lesions, clinicopathologic correlation may be more important than for many of the other mesenchymal tumors. The skin and subcutis are the most common sites of clinical presentation for the infantile myofibroma which is the most common of fibrous mesenchymal tumors in children. Several of the other mesenchymal tumors are more common adults-like dermatofibrosarcoma protuberans, but nonetheless have an important presence in children, even as a congenital neoplasm. A lipomatous tumor in a young child should be considered as a possible manifestation of an overgrowth syndrome.