Arthroscopic treatment of synovial chondromatosis in the ankle joint.

Introduction: Synovial chondromatosis is characterized by the presence of metaplastic cartilage nodules originating from the synovia, bursa and tendon sheaths. Although it is extremely rare in the ankle joint, malignant transformation is possible. The choice of treatment is usually open surgery for excision of loose bodies and synovectomy.

Development of six tumors in a sebaceus nevus of jadassohn: report of a case.

Nevus sebaceus of Jadassohn is a congenital cutaneous hamartoma comprised of multiple skin structures. It has the potential to develop into variety of neoplasms of various epidermal adnexal origins. While multiple tumors may occasionally arise, it is unusual for more than four tumors to arise simultaneously within a single sebaceus nevus.

Intravascular papillary endothelial hyperplasia: histomorphological and immunohistochemical features.

Background: Intravascular papillary endothelial hyperplasia (IPEH) is a benign intravascular process with features mimicking other benign and malignant vascular proliferations. IPEH lesions predominate in the head-neck region and the extremities. The characteristic histomorphological feature of IPEH is a papillary structure covered with hyperplastic endothelial cells within the vascular lumen.

Rapid enlargement of elastofibroma dorsi after physical therapy.

Elastofibroma dorsi is an uncommon, slow-growing, ill-defined soft tissue tumor. Its most prominent symptom is back and shoulder pain. Elastofibroma dorsi is usually located beneath the scapula and bilateral involvement occurs in only 10% of patients.