FRI330 A Rare Case Of Hypogonadotropic Hypogonadism In A Patient With Disseminated Tberculosis And Tuberculoma Involving Tuberculum Sellae

Disclosure: J.S. Genkil: None. S. Ahsun: None. N. Mohan: None. C. Anastasopoulou: None. Introduction: Central nervous system (CNS) tuberculosis accounts for 1-10% of all tuberculosis (TB) infections and has been known to lead to irreversible consequences. CNS TB may present variably as meningeal tuberculosis, tuberculoma, tuberculous abscess, hydrocephalus, ventricular involvement or cerebritis. Tuberculomas involving the sellar region are amongst the rarest of presentations. We describe a unique case of hypogonadotropic hypogonadism with CNS tuberculoma. Case: A 46-year-old male with depression, alcohol use, tobacco smoking, and daily K2 spice use presented to the hospital with multiple days of upper extremity weakness, seizures, and slurred speech. Head CT was done that showed a soft tissue density with mild hypoattenuation on the right frontal region. MRI of the brain showed 3 round 4-5mm lesions with rim enhancement in the frontal lobes. Chest CT showed apical lung lesion. It was believed that patient had a malignant process with metastasis to the brain. During his course, it was discovered that he had TB exposure from his mother several months ago. Despite multiple negative AFB sputum samples, left lung biopsy confirmed TB diagnosis. He was subsequently diagnosed with tubercular meningitis with tuberculomas, one of them involving tuberculum sellae. The patient was started on antitubercular treatment with isoniazid, rifampin, pyrazinamide, streptomycin, and dexamethasone. Lab revealed normal thyroid studies, but very low total testosterone<20 ng/dl (Normal 220-872 ng/dl), with low FSH=2.6 IU/L (Normal 1-12 IU/L) and LH=0.8 IU/ml (Normal 0.6-12.1 IU/ml), with normal prolactin=7.9 ug/L (Normal 3.5-19.4 ug/L). To treat hypogonadotropic hypogonadism, the patient was started on weekly testosterone supplementation with testosterone cypionate 50 mg subcutaneous injections. Ultimately the patient was discharged to a full-time nursing facility and made significant clinical and functional improvement. Discussion: TB of the CNS is among the least common of extra pulmonary tuberculosis yet is associated with the most devastating manifestations making it a feared complication of TB. These lesions are associated with high rates of morbidity and mortality despite appropriate therapy so prompt diagnosis is key. CNS tuberculomas may present isolated or in combination with pulmonary TB. They are unique as they may masquerade as other intracranial space occupying lesions such as tumors or hematomas, further complicating diagnosis. In particular, sellar and suprasellar region tuberculomas are rare and can present with varied amount of hypopituitarism. In the patient’s case, he developed hypogonadotropic hypogonadism which was successfully treated with testosterone replacement. Hypogonadotropic hypogonadism can only be recognized if there is a high index of suspicion and can result in improvement of the quality of life with preservation of sexual function. Presentation: Friday, June 16, 2023