Sebaceous carcinoma (SC) is a slow-growing but aggressive malignant skin tumour derived from sebaceous glands. SC most commonly occurs in the periocular region, whereas extraocular sites are rare. SC of the nasal dorsum is a rare pathology, and only a few cases are reported worldwide. Here, we report a case of an 80-year-old man who presented with a mass over the nasal dorsum, diagnosed morphologically and immunohistochemically as sebaceous carcinoma.
Neuroendocrine neoplasms (NEN) of the head and neck are a rare and diverse group of tumors. Here, we report a case of a 40-year-old man presenting with symptoms resembling chronic left otitis media, including left ear otorrhea, otalgia, and reduced hearing. Otoscopic examination revealed a whitish mass located behind the tympanic membrane. The patient underwent examination under anesthesia and left cortical mastoidectomy, and a histopathological examination of the middle ear biopsy indicated the presence of an epithelial tumor with neuroendocrine differentiation, suggestive of middle ear adenoma. A staging CT scan performed three months after the mastoidectomy showed a hypodensity in the middle ear cavity, with no significant bony erosion, which could potentially indicate a residual or recurrent tumor. Consequently, a radical mastoidectomy was performed. The histopathological examination confirmed the presence of middle ear adenoma with neuroendocrine differentiation.