A young man with a mass on the neckBMJ 2018; 361 doi: https://doi.org/10.1136/bmj.k1598 (Published 31 May 2018) Cite this as: BMJ 2018;361:k1598
- Shing Fung Lee, medical and health officer,
- Ting Ying Ng, associate consultant,
- Frank Chi Sing Wong, consultant oncologist,
- Stewart Yuk Tung, consultant oncologist
- Department of Clinical Oncology, Tuen Mun Hospital, Tuen Mun, Hong Kong
- Correspondence to Shing Fung Lee,
A 25 year old man was referred to the oncology unit with a three week history of a neck lump that was progressively increasing in size, and atypical lymphoid cells on fine needle aspiration cytology. The patient also reported mild exertional dyspnoea and drenching night sweats, but no weight loss, occupational exposure to harmful substances, recent travel, or high risk sexual behaviour. He had smoked cigarettes since he was 16.
On examination, the right supraclavicular lymph node was palpable and measured 3 cm in diameter. Chest radiography showed a widened mediastinum but no lung lesions. Contrast enhanced computed tomography of the thorax was performed (fig 1). Core biopsy of the node showed partial effacement of nodal architecture by scattered large cells in a background of reactive lymphocytes, eosinophils, and plasma cells with some collagen fibrosis. These large cells stained positive for CD15 and CD30 and negative for CD45. Figure 2 shows an example micrograph from biopsy (not from the patient described).