Adamantinoma Presenting With Local Recurrence and Inguinal Lymph Node Metastasis: A Case Report.

Martin Zapata Laguado,Eduardo Luis Canales Pacheco,Jesus Oswaldo Sanchez Castillo

doi:10.7759/cureus.13439

Abstract

Adamantinoma of long bones is a slow-growing, low-grade primary malignant bone tumor. It is a rare entity and accounts for less than 1% of all primary bone tumors, and in most cases, it occurs in the mid-axis of the tibia of adolescents and young adults. In this report, we describe the case of a 53-year-old woman with a diagnosis of adamantinoma of the left tibia who was initially treated surgically in 2004. Two years later, she presented with local relapse, for which she underwent new surgical management. The patient was referred to our practice 16 years after the initial diagnosis, and she presented with recurrence characterized by ipsilateral inguinal lymph node metastasis. The histological findings and immunohistochemistry were compatible with metastatic adamantinoma with high-grade differentiation, which ultimately required surgical salvage management.

Highlights

Adamantinoma is a rare bone neoplasm characterized by benign behavior
We present the case of a female patient with a diagnosis of adamantinoma of the left lower limb who presented with a relapse at the local and regional ipsilateral inguinal level 16 years after the initial diagnosis
Adamantinoma is a rare primary malignant tumor of the bone that predominantly affects the tibia of young adults, with an incidence rate of less than 1% [1,5,6]

Summary

Introduction

Adamantinoma is a rare bone neoplasm characterized by benign behavior. Usually, it tends to be cured with the first surgical procedure itself. The presence of metastasis is unusual, even though there have been reported cases of relapses at the lung, lymph node, and bone level, which can appear more than 10 years after the diagnosis. We present the case of a female patient with a diagnosis of adamantinoma of the left lower limb who presented with a relapse at the local and regional ipsilateral inguinal level 16 years after the initial diagnosis. She underwent successful rescue surgical management, after which there has been no evidence of disease progression to date. The patient has remained disease-free for the past six months and has not shown any clinical signs of relapse

Discussion

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Conclusions

Disclosures