Lateral Nasal Wall Respiratory Epithelial Adenomatoid Hamartoma (REAH): A Diagnostic Conundrum

Introduction: this study aims to report a rare case of a respiratory epithelial adenomatoid hamartoma (reah) of the lateral nasal wall that had initially presented as a fungating mass, similar to that of a sinonasal malignancy, and its complete removal from the lateral nasal wall. case report: we report the case of a 58-year-old woman who presented to us with a chief complaint of recurrent right-sided epistaxis and nasal blockage for the past 4 months, which was progressively worsening. histopathological examination confirmed the presence of a reah instead of a sinonasal malignancy. the tumor was surgically excised from the lateral nasal wall using electrocautery under endoscopic guidance. the patient was then carefully followed-up after surgery, and the wound was successfully healed 3 months after the initial surgery. there was no evidence of recurrence 6 months after the initial surgery conclusion: this case demonstrates the rare presentation of a reah, which had arisen from the lateral nasal wall. clinically, it is difficult to distinguish a reah from a more notorious mass such as a sinonasal malignancy. therefore, biopsy is mandatory in all cases of lateral nasal mass in order to rule out malignancy before confirming nasal reah. fortunately, as seen in this case, a lateral nasal reah, once diagnosed, can be safely and easily removed from the lateral nasal wall using electrocautery with good surgical outcomes and a low rate of recurrence.