Multiple bilateral choroidal metastatic tumors from a small-cell neuroendocrine carcinoma of unknown primary site

M Nicolò1, F C Piccolino, D Ghiglione

  • 1University Eye Clinic of Genova, Genova, Italy. massimo.nicolo@hsanmartino.it

Abstract

Insights

This case report details a rare instance of multiple, bilateral choroidal tumors caused by poorly differentiated small cell neuroendocrine carcinoma of unknown primary. This unusual intraocular involvement highlights the importance of comprehensive oncologic evaluation.

Area of Science:

  • Ophthalmology
  • Oncology
  • Pathology

Background:

  • Small cell neuroendocrine carcinoma (SCNEC) is an aggressive malignancy.
  • Unknown primary tumors pose diagnostic challenges.
  • Choroidal tumors can arise from various primary sites, but SCNEC is rare.

Observation:

  • A 30-year-old female presented with multiple, bilateral choroidal tumors.
  • The tumors were histopathologically identified as poorly differentiated SCNEC.
  • Despite extensive work-up, the primary tumor site remained unidentified.

Findings:

  • The patient had disseminated disease and a poor prognosis.
  • The intraocular SCNEC represented a rare manifestation of this cancer.
  • The case highlights the potential for SCNEC to metastasize to the choroid.

Implications:

  • This case expands the known spectrum of intraocular tumors.
  • Early detection and diagnosis of unknown primary SCNEC are crucial.
  • Further research is needed to understand SCNEC's metastatic potential to the eye.