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Untreated Non-Functioning Pituitary Adenoma Causing Spontaneous Cerebrospinal Fluid Rhinorrhea: A Case Report

Pritsana Punyawai, MD¹, Kumpol Kaewjumpot, MD², Kangsadarn Tanjararak, MD², Ake Hansasuta, MD³

Affiliation : ¹ Chakri Naruebodindra Medical Institute, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand ² Department of Otolaryngology Head and Neck Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand ³ Division of Neurosurgery, Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand

Cerebrospinal fluid (CSF) leakage is common with traumatic brain injury or after transsphenoidal surgery (TSS). In contrast, spontaneous rhinorrhea caused by pituitary adenoma (PA) without prior treatment is rather unusual. Moreover, cases of non- functioning PA (NFPA) who seek medical attention without visual or hormonal symptoms but with watery nasal discharge, mistaken for rhinitis, and misled to delayed diagnosis, are extremely rare. The authors presented a case of spontaneous CSF rhinorrhea, confirmed by clinical, laboratory, and radiographic studies, caused by NFPA. Endoscopic TSS came across a typical PA, and subsequently, the sellar defect was successfully repaired. Pathological diagnosis of NFPA was established. The patient had an uncomplicated postoperative course and complete resolution of her presenting symptoms. A short review of prior case reports is also provided.
Received 8 June 2020 | Revised 17 August 2020 | Accepted 21 August 2020

doi.org/10.35755/jmedassocthai.2020.09.11543

Keywords : Spontaneous cerebrospinal fluid rhinorrhea, Pituitary adenoma, Non-functioning, Endoscopic transsphenoidal surgery


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