Abstract Objective This current study seeks to explore the presentation of psychiatric disorders as a preliminary symptom in individuals who suffer from frontal lobe neoplasms. Data Selection The primary sources of information for this literature review were Google Scholar, PubMed, ScienceDirect, and the National Institute of Health (NIH). Search terms included frontal lobe tumors/neoplasms, primary brain tumors, psychiatric/psychological, acquired disorders, and pseudo-depression/mania. This search was limited to articles published in English from January 2014 to December 2023. Inclusion criteria were studies that focused on frontal lobe tumors and psychiatric manifestations as a result of illness. Exclusion criteria were studies older than nine years or studies that explored traits of psychiatric illness (i.e., aggression) as opposed to a psychiatric diagnosis. Data Synthesis Frontal lobe neoplasms, accounting for a significant percentage of PTBs, have been found to impact the psychological well-being of patients, leading to a range of psychiatric manifestations that may appear before physiological symptoms. These include mood disorders (i.e., depression, manic episodes), psychotic episodes, and personality disorders. Due to the complexities of the frontal lobe, these manifestations are not linearly linked to frontal lobe lesions. Conclusion This study’s findings advocate for a multidisciplinary approach to treatment, emphasizing the need for neuropsychological evaluations pre- and post-tumor resection. It calls for heightened awareness among clinicians to consider organic causes behind psychiatric presentations, especially in atypical cases or when traditional treatments fail. Ultimately, this research contributes to a deeper understanding of the neuropsychiatric consequences of frontal lobe neoplasms and paves the way for more targeted and effective interventions.