Primary pleural lymphoma of T cell origin in a paediatric patient with a focus on radiological findings – a case report and review of literature

Purpose
Pleural lymphoma is a medical condition characterised by shortness of breath and obscure chest pain, which may be a diagnostic challenge, especially when it occurs in children. Plain chest X-rays and computed tomography (CT) scan are the main imaging techniques and are the initial diagnostic methods utilised.

Case report
A four-year-old boy was admitted to the emergency ward with pain in the right thoracoabdominal region, which had persisted for two months. Physical examination revealed reduced respiratory sounds in the right chest, but with no other significant findings. The patient underwent chest X-ray and CT scan, which showed right sided pleural thickening coupled with a massive pleural effusion. The patient underwent pleural biopsy, and a diagnosis of T-cell primary pleural lymphoma was made. The patient underwent treatment with BFM-NHL and was followed for three years, during which the patient remained disease free.

Conclusions
Pleural lymphoma is a rare diagnosis especially in children and could have overlapping clinical manifestations with more common conditions. Imaging techniques are the main route of clinical work-up towards final diagnosis. Here, we present a rare paediatric patient with no significant past medical history, who underwent imaging and was diagnosed with T-cell primary pleural lymphoma, a very rare subtype of primary pleural lymphoma.