Infantile myofibromatosis: a series of 28 cases.

Background: Infantile myofibromatosis (IM) is a rare disorder of fibroblastic/myofibroblastic proliferation in children.

Objectives: We sought to document common and unusual characteristics of patients with IM.

Methods: This was a retrospective study of 28 children diagnosed with histopathologically confirmed IM between 1992 and 2012.

Cutaneous B-cell lymphoblastic lymphoma in children: a rare diagnosis.

Background: Lymphoblastic lymphoma (LBL) is a rare malignant neoplasm usually occurring in the mediastinum of children and adolescents. The B-cell immunophenotype of LBL (B-LBL) accounts for less than 20% of all cases and may involve extramediastinal areas, such as the skin. Although highly aggressive, LBL is potentially curable if diagnosed early.