Merkel cell carcinoma mimicking transformed chronic lymphocytic leukemia/small lymphocytic lymphoma.
Ismael BahShaoying LiCheng Cameron YinGuillin TangJie XuPublished in: Clinical case reports (2019)
Although MCC has been reported in patients with CLL/SLL, it is extremely rare to observe these two within the same tumor. MCC's positivity for PAX5 and TdT may pose a diagnostic challenge by mimicking transformed CLL/SLL. A thorough workup is critical in reaching the correct diagnosis.