A Rare Occurrence of Enchondroma in Neck of Femur in an Adult Female: A Case Report

Abstract

Enchondroma is a solitary, benign, intramedullary cartilaginous tumour occurring most commonly in small bones of hands and feet. Distal femur and proximal humerus are other less common locations. Enchondroma consists of 3-10% of all bone tumours, while they constitute 12-24% of benign bone tumours. They originate from the growth plate cartilage which later on proliferates to form enchondroma. Radiographs reveal a localized, radiolucent lytic bone defect usually with punctuate calcifications. Lesions are central or eccentric and metaphyseal involvement most commonly for long bones. MRI and histopathological examination can be used to confirm the diagnosis. Asymptomatic cases can be managed conservatively with serial radiological follow ups. Cases with symptoms are managed operatively. Recurrence rate is very low (<5%), it suggests malignancy. We here present a case of a 30-year-old female patient who presented with a history of pain in right hip since 7 months. Radiological examination showed the lesion to be enchondroma. The patient was managed by curettage with autogenous iliac bone graft & prophylactic 6.5 mm cannulated screws fixation. Histopathology confirmed the lesion to be enchondroma. At the latest follow up after 6 months, the patient was symptom free and there was no evidence of any recurrence. The current case report of enchondroma located in the neck of femur signifies the importance of early diagnosis, timely intervention and treatment. Also, this case report represents one of the very rare cases reported in literature.

Bilateral Total Hip Arthroplasty as a Treatment for Ollier’s Disease of the Proximal Femur: a Case Report

“…As stated above, it almost exclusively affects the metaphysis of long bones and the small bones of the hands and feet [2]. There are very few reports of single enchondromas of the hip in english literature [5][6], and only one case of multiple enchondromas located on the hip like our patient.…”

Two Cannulated Screws Provide Sufficient Biomechanical Strength for Prophylactic Fixation in Adult Patients With an Aggressive Benign Femoral Neck Lesion

“…Thus, prophylactic internal fixation is currently preferred for aggressive benign femoral neck lesions in adults ( Nakamura et al, 2015 ; Panchwagh et al, 2018 ). Several options of the internal implant for an aggressive benign femoral neck lesion were previously reported, including cannulated screws ( Singh et al, 2015 ; Erol et al, 2016 ), intramedullary fixation ( Zhang et al, 2017 ), and compression hip screw ( Nakamura et al, 2015 ). However, there is still no agreed consensus on the optimal selection of the internal fixation implant which provides not only sufficient biomechanical strength but also a minimally invasive approach after curettage ( Shi et al, 2021 ).…”

Extended Curettage and Fibular Grafting in Enchondroma of the Acromion

“…Generally being asymptomatic, it is discovered incidentally during an unrelated radiographic examination or in case of a pathological fracture. Proximal locations such as proximal humerus and scapula are extremely rare sites [2]. Radiographs show a lytic lesion with intralesional calcification.…”