Soft tissue chondroma of the plantar foot in a 14-year-old boy: a case report

Abstract

Introduction and importance Soft tissue chondroma is a rare benign tumor with a predilection for hands and feet. The incidence is only about 1.5% of all benign tumors and this neoplasm is rarely seen in the paediatric population. In this paper we report the case of a 14-year-old boy treated for a soft tissue chondroma located next to the left foot second metatarsal. Case presentation A 14-year-old boy presented with a slowly growing plantar swelling of the left foot. The mass was solid, mobile, measuring 4 cm and located in soft tissues opposite of the left foot second metatarsal. Magnetic resonance imaging was performed and revealed a mass measuring 37 ∗ 27 mm with regular seams, on iso-signal T1 and hyposignal T2 without any skeletal connection. A marginal excision of the mass was performed and the postoperative time was uneventful. Clinical discussion The clinical presentation of soft tissue chondroma is generally not specific which makes the diagnosis mostly challenging. Magnetic resonance imaging is the most performed paraclinical examination that allows a better analysis of the lesion. A surgical excision of the tumor is the treatment of choice. Conclusion Soft tissue as a primary site of chondroma is a rarely reported localisation and this neoplasm should be kept in mind as a possible diagnosis face to any plantar mass in childhood.

Extra skeletal chondroma a rare presentation in the big toe of a pediatric patient: a case report

“…1 Cumulatively, the condition is reported in only about 200 cases. 10 Chung and Enzinger studied 104 patients with extraskeletal chondroma. The condition was found in the upper limbs in 72% and in the lower limbs in 24% of their cases, 88% of which are located in the feet or ankles.…”

“…Benradi et al reported a case of a 14-year-old boy who underwent a surgical excision of a soft tissue chondroma of the plantar aspect of his foot. 10 Salvatori et al reported a case of an 11-year-old girl who presented with trigger finger due to a mass attached to the flexor digitorum superficialis of her ring finger which was histologically diagnosed as an extraskeletal chondroma. 12 We have not encountered in the literature an extraskeletal chondroma in a foot of a child as young as 8 years as in this reported case.…”

A Rare Case of Myxochondroid Metaplasia of the Plantar Foot With Review of Histopathological Mimics

“…15 Theories regarding the etiology of soft tissue chondromas include the embryologic and the metaplastic ones. 10,[20][21][22] In the latter theory, it is suggested that longterm trauma and low-grade inflammation trigger chondroid differentiation of mesenchymal cells that ultimately form mature cartilage. Although this might not fully explain the pathogenesis of all soft tissue chondromas, it might represent a reasonable theory for at least some, especially those happening at frequently traumatized distal extremities.…”

Heavily Ossified Soft Tissue Chondroma of Plantar Foot and the Significance of Radiological Imaging: A Case Report

“…Chondroma is a benign cartilaginous tumor that develops from bone [ 1 ]. It has an incidence of 1.5% of all neoplasms [ 2 ]. Soft tissue chondromas (STC) are exceedingly rare benign solitary cartilaginous tumors that develop in soft tissues [ 3 ].…”