Primary cutaneous anaplastic large cell lymphoma (pcALCL) belongs to the primary cutaneous CD30+ T cell lymphoproliferative disorders.(1) Systemic involvement is relatively rare and rather confined to the regional lymph nodes.(1)We describe a patient with recurrent pcALCL and diffuse lung manifestation which spontaneously regressed after one SARS‐CoV‐2 vaccination. We report a 57‐year‐old male patient with a 10‐year history of biopsy‐proven (CD30+, CD3+, CD4+, ALK‐, clonal T cell receptor gamma chain rearrangement) pcALCL with frequent local relapses predominantly affecting his scalp and neck.
Primary cutaneous anaplastic large cell lymphoma with marked spontaneous regression of organ manifestation after SARS‐CoV‐2 vaccination