Primary cutaneous B-cell lymphoblastic lymphoma: A pediatric case report.

FPrecursor T- or B-cell non-Hodgkin lymphoblastic lymphomas represent only a small fraction of pediatric cancer cases. Due to its rarity, the diagnosis of lymphoblastic lymphoma (LBL) in a pediatric patient is challenging, particularly if its manifestation is solely cutaneous. We describe the case of an infant with primary cutaneous B-cell LBL who was initially diagnosed by a primary care physician with an infectious etiology and consequently treated with topical and oral antibiotics. Subcutaneous nodules located on the head or neck of infants should raise suspicion for lymphoma and biopsy should be performed in order to rule out malignancy. A prompt diagnosis is imperative when considering the aggressive nature of LBLs. Expedited therapy has been known to help cease systemic involvement of primary cutaneous B-cell LBLs and encourage a more favorable outcome.