Schneiderian papilloma is typically found on the lateral nasal wall, but, in rare cases, can be located at the mucosa of the nasal septum. Respiratory epithelial adenomatoid hamartoma (REAH) is rare, non-neoplastic lesion characterized by an abnormal proliferation of glandular part of the respiratory nasal mucosa. We present a case of a 42-year-old man with five-year history of bilateral nasal obstruction, rhinorrhea, epistaxis, and hyposmia. On endoscopic examination, we found lobulated, yellowish-pink soft tissue masses on both sides of the nasal septum. The results of histopathological analyses showed the characteristics of Schneiderian papilloma in the lesion excised from the right and REAH in the lesion excised from the left side of the nasal cavity. To our knowledge, cases of simultaneous presentation of Schneiderian papilloma and REAH on opposite sides of the nasal septum have not been published so far. An appropriate cooperation of rhinologist and pathologist allows for a correct diagnosis of these rare and unusual lesions.
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http://dx.doi.org/10.1177/01455613221135648 | DOI Listing |
Int Arch Otorhinolaryngol
October 2024
Department of Otorhinolaryngology and Head and Neck Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland.
Sinonasal inverted papilloma (SNIP) is a rare benign epithelial tumor of the nasal cavity and paranasal sinuses that accounts for 0.4% and 4.7% respectively, of all tumors of this anatomical region.
View Article and Find Full Text PDFHead Neck Pathol
September 2024
Department of Pathology and Laboratory Medicine, University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX, 77030, USA.
Purpose: DEK::AFF2 fusion-associated squamous cell carcinoma (DEK::AFF2 SCC), also reported in the literature as low-grade papillary sinonasal (Schneiderian) carcinoma (LGPSC), is a rare, primarily bland-appearing, but locally aggressive neoplasm. Morphologically, these tumors can closely resemble sinonasal papilloma (SP), especially on small or limited biopsy, often leading to misdiagnosis. DEK::AFF2 SCC is devoid of the underlying mutually exclusive EGFR or KRAS driver mutations of SP, suggesting it may represent a distinct unique entity.
View Article and Find Full Text PDFCureus
July 2024
Department of Radiology, Diagnostica Social -Patronato Benéfico Oriental (PBO), La Romana, DOM.
An inverted papilloma is a rare, benign tumor that affects the nasal cavity and paranasal sinuses. The maxillary and ethmoid sinuses are the most commonly affected, while the involvement of the sphenoid sinus is rare and may be associated with malignancy. We describe the case of a 21-year-old female who presented with recurring headaches along with dizziness, difficulty concentrating, mild hypoacusis, and occasional nasal congestion.
View Article and Find Full Text PDFLaryngoscope
February 2025
Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A.
Objectives: There is growing interest in assessing patient quality of life (QOL) following treatment of sinonasal tumors, including inverted papilloma (IP). We aimed to elucidate the natural history of postoperative QOL outcomes in IP patients treated with surgery.
Methods: Cases of sinonasal IP treated surgically at 4 tertiary academic rhinology centers were retrospectively reviewed.
Orbit
August 2024
Kellogg Eye Center, Department of Ophthalmology and Visual Science, University of Michigan, Ann Arbor, Michigan, USA.
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