Elastofibroma in the Rearfoot: A Case Report of a Rare Soft Tissue Tumor.

Abstract

An elastofibroma is a rare, benign, slow-growing, progressive soft tissue neoplasm with distinct histopathological features consisting of collagen and coarse elastic fibers. When it occurs, it has a propensity for the subscapular region in elderly female patients. It can occur less commonly at other anatomical sites, and its exact etiology is unclear. The incidence of elastofibroma, especially in the foot, has been sporadically reported; however, the presentation of elastofibroma in the rearfoot has not been previously described in the literature. We present the first report of a 79-year-old female presenting with plantar heel pain secondary to an elastofibroma found at the insertion of the plantar fascia into the calcaneal tuberosity. The patient underwent surgical excision, and pathological analysis revealed the diagnosis of elastofibroma. We discuss the peculiar manifestation of elastofibroma in this case, the pathological diagnosis, and a review of the literature.