Glomus Tumor of the Sinonasal Tract - Two Case Reports and a Review of Literature -

An Atypical Lesion in the Nasal Cavity: Glomus Tumor

Glomus tumors are rare vascular tumors that originate in the glomus bodies. These tumors are uncommon in the head and neck region and are extremely rare in the nasal cavity. Intranasal glomus tumors mostly have a clinical and radiologic indolent behavior. This report presents the clinical, pathological, and radiological features of a 60-year-old female patient with a glomus tumor that has an atypical size and location.

A case of malignant glomus tumor (glomangiosarcoma) of the nasal cavity

Glomus tumors are rare and usually benign. The malignant form (glomangiosarcoma) comprises <1% of all glomus tumors. There are limited reports that describe glomus tumors in the nasal cavity. However, to the best of our knowledge, glomangiosarcoma of the nasal cavity was never reported in humans. We report on the first case of nasal cavity glomangiosarcoma in a 59-year-old male who presented with a bleeding mass in his right nostril. We completely excised the lesion with a 0.7-mm free margin, and the histopathologic examination was consistent with glomangiosarcoma. A 6-month follow-up illustrated no evidence of recurrence or distant metastasis. Although it is rare, glomus tumors should be in the differential diagnosis of nasal cavity tumors. Histopathologic examination is essential for glomangiosarcoma diagnosis. Treatment requires complete excision with free margin, alongside careful clinical and radiological follow-up.

Ethmoid glomangioma and oncogenic osteomalacia: a case report

Background

Glomangioma is a benign tumor of mesenchymal origin, derived from the glomus body. It is responsible for the thermal regulation of the dermis. The occurrence of oncogenic osteomalacia related to glomangioma is rare. Only two cases have been reported thus far.

Case presentation

A 32-year-old female, Brazilian, presented diffuse pain, during pregnancy, that developed progressively, limiting her mobility. Imaging showed a femoral neck fracture, and rheumatological laboratory examination showed hypophosphatemia. Also, the patient reported episodes of epistaxis during childhood and recurrence along with progressively right nasal obstruction. Endoscopic resection of the tumor was performed, and immunohistochemistry was conclusive for glomangioma. This case report describes the third case in which endonasal endoscopic surgery resulted in a favorable outcome.

Conclusion

This case of glomangioma-induced oncogenic osteomalacia suggests that surgeons and clinicians should consider sinonasal tumors as a differential diagnosis of osteomalacia, and endonasal endoscopic surgery should be a possible curative resection.