Purpose: Primary SCC of the frontal sinus is a rare entity, accounting to only 0.3-1.0% of paranasal sinus carcinomas [1]. Symptoms are usually absent, and if present are non-specific including cutaneous nodule, facial pain and/or nasal discharge. As a result, SCC is a difficult and often forgotten differential. However early diagnosis is crucial due to its erosive nature and risk of intracranial extension. Methodology: The authors present a case of a 67-year-old Aboriginal male presenting with invasive SCC of the frontal sinus and review of relevant literature. Results: A 67-year old Aboriginal male presented to emergency department due to boggy forehead mass. A clinical diagnosis of superficial abscess was made and an incision and drainage of the lesion was completed. The patient re-presented 3 weeks later with recurrence of initial bogginess. CT scan was completed showcasing a 57x35x57mm heterogenously enhancing lesion originating from right frontal sinus abutting underlying dura. The patient was transferred to interstate neurosurgical services under radiological suspicion of Potts Puffy tumour. However, MR imaging and histopathology confirmed diagnosis of non-keratinising malignant SCC. Conclusion: SCC of the frontal sinus is a rare and clinically non-specific pathology. The authors highlight SCC as a rare mimic of more benign pathologies. Delayed diagnosis can create a surgical complexity and significant morbidity. References: 1.Gerlinger I, Gobel G, Tóth E, et al. Primary carcinoma of the frontal sinus: a case report and a review of literature. Eur Arch Otorhinolaryngol. 2008;265(5):593-597. doi:10.1007/s00405-007-0491-x.