Despite the improvement in survival of pediatric patients with rhabdomyosarcoma, the outcome of patients with sinonasal rhabdomyosarcoma is poor and has not significantly changed. We report the case of a 22-year-old patient diagnosed with sinonasal rhabdomyosarcoma, with determining the prognostic factors and the therapeutic measures.

Paraganglioma is a rare neuroendocrine tumor. Nasal localization is very rare. Head and neck paragangliomas represent only 0.6% of head and neck tumors and 3% of all paragangliomas. The treatment is based on surgery. Radiotherapy is indicated if the surgery does not provide complete resection. We report the case of a 36-year-old patient who has had left nasal obstruction with epistaxis for 2 years. The CT scan shows a solid mass centered on the left nasal cavity, puffy, without signs of aggression, benign-looking. The patient underwent a complete endoscopic endonasal tumor removal after preoperative external carotid embolization. Pathological analysis with immunohistochemistry confirmed the diagnosis of paraganglioma. The follow-up to the treatment was favorable.

Lemierre’s syndrome is a rare and in some cases fatal thrombophlebitis of the internal jugular vein (IJV). It usually follows acute oropharyngeal or otologic infections in healthy, young children. Fusobacterium necrophorum is the most common bacteria that causes Lemierre’s syndrome, whereas various microorganisms are reported. We report a case of Lemierre’s syndrome secondary to chronic otitis media, which remains a rare occurrence of a very seldam disease.

Frontal sinuses that present with abnormally large size are often clinically described as a deformity of the forehead, caused by Pneumosinus dilatans (PD). We report a rare case of Pneumosinus dilatans frontalis which was accidentally discovered by a paranasal sinus CT scan requested following frontal headaches, and thus revealing diffuse osteoporosis. Pneumosinus dilatans is often an unexpected radiological finding; however, in most cases, it is diagnosed by recognition of a frontal deformity.

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