# Bizarre Parosteal Osteochondromatous Proliferation (Nora’s Lesion) Affecting Carpal Bones of the Hand in a Middle-Aged Female: A Case Report

## TL;DR

A 45-year-old woman had a rare benign bone growth in her wrist, successfully treated with surgery and remained pain-free.

## Contribution

This case report highlights the rare occurrence of BPOP in the carpal bones and emphasizes the importance of accurate diagnosis.

## Key findings

- BPOP was confirmed through imaging and histopathology in the carpal bones of a middle-aged woman.
- Surgical excision led to complete pain relief and no recurrence over two years of follow-up.
- Accurate preoperative evaluation is crucial to avoid recurrence and ensure proper treatment.

## Abstract

A 45-year-old woman complained of left wrist pain and swelling for two years accompanied by limited dorsiflexion. Plain X-rays revealed an abnormal bony mass in the carpal bones, further evaluated using computed tomography and magnetic resonance imaging. Upon confirmation of the benign nature surgical excisional biopsy of the lesion, the histopathology confirmed the diagnosis of Bizarre parosteal osteochondromatous proliferation (BPOP). The patient has remained pain-free and actively involved in her routine for the past two years. BPOP, affecting the carpal bones of the hand, are exceptionally rare occurrence. Attentive preoperative evaluation helps in diagnosis and to initiate measures to avoid recurrence.