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Related Experiment Video

Updated: Feb 15, 2026

Full-Endoscopic Surgery for Hypothalamic Hamartoma Resection
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Sinonasal seromucinous hamartoma.

Yu-Wen Huang1,2, Ying-Ju Kuo2,3, Ching-Yin Ho4,5,6

  • 1Department of Otolaryngology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou District, Taipei, Taiwan, Republic of China.

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
|January 31, 2018
PubMed
Summary

Seromucinous hamartoma (SH) is a rare sinonasal tumor. This study reviews seven cases, highlighting its polypoid nature and haphazard glandular proliferation, aiding diagnosis.

Keywords:
HamartomaLow grade sinonasal adenocarcinomaRespiratory epithelial adenomatoid hamartomaSeromucinous hamartomaSinonasal tumor

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Area of Science:

  • Otorhinolaryngology
  • Pathology
  • Surgical Oncology

Background:

  • Seromucinous hamartoma (SH) is an uncommon benign glandular proliferation affecting the sinonasal tract and nasopharynx.
  • Few cases of sinonasal SH have been documented in recent literature.

Purpose of the Study:

  • To review clinical and pathological features of sinonasal SH.
  • To enhance understanding of this rare sinonasal lesion for improved diagnosis.

Main Methods:

  • Retrospective review of medical records for seven patients with sinonasal SH.
  • Analysis of cases treated with endoscopic endonasal surgery.

Main Results:

  • Seven patients (5 male, 2 female; age 40-98 years) were identified.
  • Lesions originated from the middle turbinate, uncinate process, and nasal septum.
  • Pathology revealed polypoid lesions with haphazard submucosal seromucinous gland proliferation; immunohistochemistry showed reactivity for CK7, CK19, HMWK, and negativity for CK20.

Conclusions:

  • Sinonasal SH presents as a polypoid lesion with characteristic haphazard glandular proliferation.
  • Rhinologists should consider SH in the differential diagnosis of sinonasal polypoid lesions.