A case report of osteoblastoma on the distal phalanx of the ring finger successfully treated with curettage and polymethylmethacrylate filling

Osteoblastoma of the thumb with a novel PRSS44::ALK fusion and literature review of osteoblastoma of hands and feet bones

Osteoblastomas (OBs) are benign neoplasms constituting approximately 1% of primary bone tumors with a predilection for the spine and sacrum. We describe an OB of the proximal phalanx of the left thumb in a 38-year-old female. MRI of left hand demonstrated a 29-mm mildly expansile enhancing lesion involving the entire proximal phalanx of the first digit. Histology displayed a bone-forming tumor consisting of trabeculae of remodeled woven bone framed by plump osteoblasts in a vascularized background. Next-generation sequencing analysis identified a PRSS44::ALK fusion gene.

Agressive osteoblastoma in a seven-year-old girl's mandible: Treatment and six-year monitoring

INTRODUCTION

Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some cases; however, with rare malignant transformations. A case of osteoblastoma in a seven-year-old patient's mandible is presented.

PRESENTATION OF CASE

After the diagnosis, the patient underwent two stages of treatment. In the first intervention, an intralesional curettage was performed as well as a marsupialization of the lesion, in order to reduce its volume and allow a second and more conservative surgical period. In the second surgery, after reducing the lesion, enucleation and rigid internal fixation of the mandible were performed.

DISCUSSION

The treatment has proven to be satisfactory, without recurrence of the injury for two years, when the patient suffered a car accident that caused the synthetic material to fracture.

CONCLUSION

The internal fixation was surgically replaced and the patient is being monitored after six years of the initial intervention, without presenting further changes.

Removal of osteoblastoma of the talar neck using standard anterior ankle Arthroscopy：A case report

•

We present the first, to our knowledge, case of osteoblastoma of the talar that was excised using standard anterior ankle arthroscopy.

•

Osteoblastoma of the talar is rare.

•

We present the first case, to our knowledge, that was excised using standard anterior ankle arthroscopy.

Introduction

Osteoblastoma of the talus, a benign tumor, is rare in orthopedics. The choice of treatment is usually open surgery for excision of tumor. Limited data is available concerning arthroscopic approaches.

Presentation of case

A 36-year-old male patient was evaluated for pain and swelling of the left ankle joint. Based on the findings of physical examination, X-rays and MRI investigations, the tumor was isolated. Standard anterior arthroscopic surgery was performed due to ankle pain. A diagnosis of osteoblastoma of the talar neck was made following the pathological survey. He had no recurrent pain and normal joint mobility 5 years postoperatively during he was regularly followed up.

Discussion

Osteoblastoma of the talar neck is slowly progressive and it is a palpable painful mass. Open or arthroscopic surgery can be performed. Treatment strategies are decided on according to the tumor's location, extent and size. Some advantages of arthroscopic surgery are wide visualization areas, minimally invasion, low morbidity, no necessity for casting and immobilization, early rehabilitation and quick recovery.

Conclusion

In conclusion, arthroscopic management can be successful in selected patients with small benign tumor localized to the ankle joint.