Pigmented villonodular synovitis. A case report

Diffuse pigmented villonodular synovitis: two cases involving the calcaneocuboid joint

Pigmented villonodular synovitis is nonmalignant and nonmetastasizing, but it is locally destructive and can result in considerable disability through infiltration and involvement of surrounding soft tissues and bone. This article briefly describes the clinical picture of the diffuse form of pigmented villonodular synovitis and reports on two cases involving juxta-articular erosions of the calcaneocuboid joint. Treatment involved substantial curettage of bone and resection of infiltrated intrinsic musculature.

Irradiation as adjunctive treatment of diffuse pigmented villonodular synovitis of the foot and ankle prior to tumor surgical excision

In this manuscript, the author undertakes a brief description of the diffuse form of pigmented villonodular synovitis and provides a recommendation of pre-surgical tumor irradiation as adjunctive treatment for reduction of recurrence and better preservation of function of the lower extremity.

Pigmented villonodular synovitis. A literature review and unusual case report

The literature contains various nomenclature and classifications regarding the pigmented villonodular pathology that have proven to be quite confusing. This article clarifies this and emphasizes the fact that there is a spectrum of inflammatory pathologies that may affect synovial tissue. The primary focus of this article is pigmented villonodular Synovitis (PVNS) which refers to joint pathology.

Extra-articular localized nodular synovitis (giant cell tumor of tendon sheath origin) attached to the subtalar joint

A large soft tissue mass of the left ankle was documented by ultrasonography in a 24-year-old man. Histologic examination of biopsy samples was consistent with pigmented villonodular synovitis. Magnetic resonance, performed to establish the extension of the mass, revealed an extra-articular lesion involving the posteromedial extra-articular soft tissues, which, by means of a thin peduncle, extended into the subtalar joint space. The mass was excised; gross and microscopic examinations were characteristic of localized nodular synovitis. Bone and cartilage abnormalities were not revealed by either preoperative imaging or surgery. At 15-month follow-up, the patient was free of recurrences. This case is an uncommon example of localized nodular synovitis of the subtalar joint, characterized by the absence of bone and articular cartilage abnormalities. In addition, this case reveals that the pattern of growth (i.e., the shape of the lesion) is an important factor in determining secondary lesions of bone and cartilage.