Nasal angiomyolipoma

Angiomyolipomas (AMLs) are hamartomatous lesions containing smooth muscle, vasculature and mature adipose tissue. AML occurs most frequently in the kidneys, with the liver being the second commonest site of involvement. Other localizations for AML are extremely rare and, to our knowledge, only six cases of AML of the nasal cavity have been reported to date. Our case involved a 52-year-old male who presented with a history of snoring and obstruction of the left nasal cavity. Physical examination revealed a 3-cm polypoid mass in the left nasal cavity, which was excised surgically. Histopathologic examination revealed that the lesion was composed of smooth muscle bundles, mature adipose tissue and blood vessels of different sizes. No epitheloid smooth muscle cells were observed and HMB-45 staining was negative. In conclusion, although nasal AML is a rare lesion, it should be considered in the differential diagnosis of polypoid nasal masses, especially when the mass occurs unilaterally.     

Nasal glioma

Congenital midline nasal masses are rare and therefore easily misdiagnosed, but due to their possible complications, they require prompt diagnosis and management. In this article we review the three most common: dermoid cyst, glioma and encephalocele. Their tendency to have a similar presentation requires very good skills in taking the history and performing the physical exam as well as an adequate radiologic diagnosis including CT, MRI or both. It is very important that we always consider them to avoid taking a biopsy.     

Nasal hemangiopericytoma

Haemangiopericytoma is rare tumour of vascular tissue. It’s pathological behaviour is variable. It arises from pericytes of Zimmermann. Although one fourth of cases are reported from head and neck region, nasal haemangiopericytoma is very rare. Because of rarity of condition, one case of nasal haemangiopericytoma arising from nasal septum is reported.     

Nasal haemangiopericytoma

Haemangiopericytoma is an uncommon vascular tumour frequently diagnosed with difficulty. The immunohistochemical findings of strong positivity to vimentin together with other diagnostic features (histological and ultrastructural) improves the certainty of its diagnosis. We report a case arising in the nose and outline diagnostic problems especially relating to histopathology.