title: Cystic lymphangioma of the mediastinum.
abstract: Cystic lymphangioma is a rare congenital benign tumor. It results from focal proliferation of well-differentiated lymphatic tissue originating from abnormal development of the lymphatic system. Most cystic lymphangiomas occur in the primitive lymph sacs of children or young adults. They generally appear in the neck (75%) and axillary region (20%). Only 1% are located in the mediastinum. Acquired lymphangiomas, which are principally seen in middle-aged adults, are caused by a process of chronic lymphatic obstruction secondary to surgery, chronic infection, or radiation. Here, we present the case of a 50-year-old male with cystic lymphangioma of the mediastinum, detected on a routine chest X-ray.
authors.affiliation: Centro Hospitalar de Vila Nova de Gaia/Espinho, Porto, Portugal. filipaviveiros@gmail.com
authors.forename: Filipa Maria Arruda Viveiros
authors.initials: FM
authors.lastname: Correia
authors.forename: Bárbara
authors.initials: B
authors.lastname: Seabra
authors.forename: Ana
authors.initials: A
authors.lastname: Rego
authors.forename: Raquel
authors.initials: R
authors.lastname: Duarte
authors.forename: José
authors.initials: J
authors.lastname: Miranda
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D033162:Incidental Findings; D018191:Lymphangioma, Cystic / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D011859:Radiography