Psycho-oncologist and oncologist collaboration in simultaneous assessment of physical symptoms and psychological distress in patients with cancer is one of the foundations of integrated and patient-centered care in psycho-oncology. In this approach, the patient is not evaluated solely based on the type and stage of cancer, but also his physical symptoms, psychological status, daily functioning, quality of life, and social conditions are considered simultaneously. The importance of this collaboration stems from the fact that symptoms such as pain, fatigue, insomnia, decreased appetite, nausea, weakness, and concentration disorder can be both a direct consequence of the disease or oncological treatments, and may be exacerbated by anxiety, depression, and psychological distress. Therefore, a complete separation of the physical component from the psychological is not always possible, and multidimensional evaluation can provide a more accurate picture of the patient's condition.
In this process, the oncologist is responsible for assessing disease status, stage of cancer, response to treatment, medication complications, and other physical symptoms, and the psycho-oncologist assesses distress, anxiety, depression, fear of relapse, sleep disturbances, adjustment problems, body image concerns, family relationships, social functioning, and coping practices. Effective collaboration is formed when the findings of these two areas are co-formulated. For example, increased fatigue may be associated with anemia, complications of treatment, or disease progression, and may be exacerbated by anxiety, insomnia, and decreased activity. In such a situation, the reduction of fatigue cannot be managed solely through psychological intervention or simply by changing medical treatment, and it is essential to examine both pathways at the same time.
In the initial evaluation, the use of systematic screening for psychological distress along with the examination of physical symptoms is important. Standard tools can help identify patients whose distress exceeds the expected level and require specialized evaluation. However, the result of the screening tool alone should not be considered as a definitive diagnosis of a mental disorder and should be interpreted by the clinical interview, medical condition, and context of the patient's life. The psycho-oncologist also pays attention to the meaning of the symptoms from the patient's point of view, as a similar symptom may mean different things to two patients. For one patient, fatigue may be seen as a temporary symptom of treatment, and for another, it may be a sign of progression of cancer and a future threat, a difference that can have a significant impact on the degree of distress.
One of the most important areas of collaboration is pain assessment. The oncologist must examine the possible origin of pain, severity, location, time pattern, its relationship to the disease and treatment, and the necessity of medical interventions. In contrast, the psycho-oncologist can assess the role of anxiety, fear, attention, catastrophic thoughts, depression, sleep, and coping strategies in the experience of pain. This division of duties does not mean that pain is psychologically considered cancer; rather, it suggests that the experience of pain has simultaneous biological and psychological components. As a result, a pain management program can include appropriate medical treatment alongside psychological interventions such as relaxation training, attention regulation, cognitive restructuring, and coping skills.
In the case of anxiety and depression, collaboration between the two specialists is also important, as some of the symptoms of these disorders overlap with the physical symptoms of cancer or complications of treatment. Decreased energy, sleep disturbances, decreased appetite, and weakness may have medical origin and may also be part of the depressive pattern. Therefore, the diagnosis should not be made solely on the basis of a single symptom. The psycho-oncologist should examine the overall pattern of symptoms, their duration, severity, impact on functioning, and associated thoughts and emotions, and the oncologist should also evaluate possible medical factors. This collaboration can prevent misattributing physical symptoms to psychological factors or ignoring the patient's actual distress.
Simultaneous assessment also aids in treatment decision-making. When a patient has significant distress alongside physical symptoms, the care plan can include medical control of symptoms, psychological interventions, patient and family education, lifestyle modifications, social support, and, if necessary, referral to a psychiatrist. The goal is not to get all patients with cancer into a psychotherapy program, but rather the severity and type of need to determine what level of intervention is appropriate. In mild cases, education and monitoring may be adequate, while moderate or severe distress may require more specialized interventions.
It is also important to continue this assessment throughout the course of the disease, as the patient's physical and psychological status does not remain constant. Initiation of chemotherapy, surgery, radiation therapy, end of active treatment, return to social life, or relapse can alter the pattern of symptoms and psychological needs. Therefore, screening and evaluation should be done periodically and the results should be provided to the treatment team. Regular communication between the psycho-oncologist and the oncologist can lead to early identification of clinical changes and timely modification of the treatment plan.
Despite the importance of this approach, barriers such as lack of time, limited resources, inadequate access to psycho-oncology professionals, lack of co-ordinated protocols, differences in professional training, and stigma associated with receiving psychological services can make it difficult to implement. Some patients may also not express their psychological symptoms due to fear of being labeled or thinking that "they have to be strong themselves." Establishing a safe therapeutic relationship and normalizing the conversation about distress can help increase the recognition of these needs. The collaboration of the psycho-oncologist and the oncologist in the simultaneous assessment of physical symptoms and psychological distress allows the patient to be viewed as an integrated whole, and by linking the medical and psychological assessment, it provides the basis for more precise, person-centered, and tailored care to the actual needs of the cancer patient.