Superficial CD34-positive fibroblastic tumor (SCPFT) is a recently described entity that, despite significant pleomorphism, carries a good prognosis. We briefly describe this tumor and its principal differential diagnoses. Recognition of SCPFTs, including the clinical context in which they arise, is important to avoid confusion with other pleomorphic soft tissue tumors, particularly neoplasms in the group of pleomorphic sarcomas, which are typically aggressive tumors that could lead to unnecessary overtreatment.

Investigating the histopathologic correlates of 18 F-FDG PET heterogeneity in non-small-cell lung cancer. Nuclear Medicine Communications.

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Papillary endothelial hyperplasia or Masson tumor most commonly occurs within the extremities and head and neck. It is usually of intravascular type, associated with thrombus formation and organization within a preexisting vessel or vascular malformation, but rarely can be extravascular. We describe the first 2 cases of this extravascular type to occur within the ovary, one of which mimicked malignancy radiologically. This condition is thought to represent a reactive phenomenon with reparative response secondary to thrombosis although with an unclear underlying pathogenesis. The prognosis is generally good, with complete surgical resection usually representing adequate treatment.