The University of Toledo Translation Journal of Medical Sciences Internal Medicine Abstract, Department of Medicine Research Symposium UTJMS 2023 May 5; 11(1):e1-e1 Anaplastic Large Cell Lymphoma Presenting as Ulcerative Facial Mass: A Case Report Basil Akpunonu1*, H. Knauss1, L. Glosser1, A. Beran1, A. Sidwell1, W. Abdulsattar1, R.T. Skeel2 1Division of Internal Medicine, Department of Medicine, The University of Toledo, Toledo, OH 43614 2Division of Haematology and Oncology, Department of Medicine, The University of Toledo, Toledo, OH 43614 *Corresponding author: Basil.Akpunonu@utoledo.edu Published: 05 May 2023 Introduction: Anaplastic large cell lymphoma (ALCL) is a rare form of non-Hodgkin lymphoma (NHL) that can be aggressive with rapid speed, thus mandating a timely diagnosis to optimize treatment and deter progression. NHL classically presents with lymphadenopathy and constitutional symptoms. However, ALCL can present with nonspecific cutaneous manifestations with minimal or absent constitutional symptoms. The cutaneous involvement may resemble common dermatologic conditions, delaying diagnosis. We present a case of an aggressive cutaneous ALCL lesion mimicking facial cellulitis that rapidly progressed from a small comedone to a large, exophytic mass over the course of 6 weeks. Case Report: A 59-year-old female with current smoking history (40 pack years) and history of COPD presented to the emergency department with a painful enlarging forehead lesion that grew over 6 weeks, with later appearance of multiple tender lymph nodes on the head and neck. She had four previous ED visits and was treated with empiric intravenous antibiotics for suspected bacterial infection without improvement. Core needle biopsy of the forehead lesion confirmed the diagnosis of anaplastic lymphoma kinase-negative ALCL. Chemotherapy with brentuximab vedotin, cyclophosphamide, doxorubicin, and prednisone was planned for a total of 6–8 cycles with curative intent. By cycle 5, positron emission tomography and computed tomography demonstrated response to therapy with no enlarged or metabolically active lymph nodes appreciated. Conclusion: Our case report highlights the importance of developing a broad differential diagnosis for ulcerative facial masses, particularly when unresponsive to antimicrobial therapies. Lymphomas should be included in the differential diagnosis of patients with rapidly growing facial lesions. https://dx.doi.org/10.46570/utjms.vol11-2023-677 https://dx.doi.org/10.46570/utjms.vol11-2023-677 mailto:Basil.Akpunonu@utoledo.edu