[Primary bone anaplastic large cell lymphoma].

Introduction: Anaplastic large cell lymphoma (ALCL) is a neoplasia of T-cell or null-cell origin accounting for approximately 3% of non-Hodgkin lymphomas in adults and 10-30% of lymphomas in children. It involves the lymph nodes as well as various extranodal sites, but the involvement of bone as either the primary or secondary site of spread, is rare.

Case Report: A 47-year-old male presented with an ALCL and multiple bone lesions involving the vertebrae, ribs, and iliac bone, with no other site of involvement.

[Relevance of nuclear medicine in the diagnosis and treatment of malignant paraganglioma].

Background: Paragangliomas are neoplasms of the chromaffin tissue characterized by the synthesis and/or secretion of catecholamines. Their treatment depends on the extension and functional characteristics of the tumor. In this pathology, the anatomic and functional diagnostic evaluations provided by nuclear medicine imaging studies have significant usefulness.