title: [Medullary carcinoma of the stomach].
abstract: The aim of this work is to show the important histiocytic oblation present in a case of stomach medullary carcinoma, marked with silver technique of Del Río Hortega. This carcinoma is poor differentiated with a predominant lymphoid infiltrate, of better prognosis, that shares many characteristic with medullary carcinoma of breast, lung, nasopharynx, thymus and salivary gland. Histologic techniques: Hematoxilin & Eosin, PAS, PAS-Alcian blue, Alcian blue, Masson's trichrome, macrophagues Del Río Hortega-Polak, and reticulin Del Rio Hortega silver impregnations techniques. Gastric medullary carcinoma shows an important lymphoid infiltration T and B, and dendritic, plasmodials and giant multinucleated macrophagues in close relations with neoplasic cells. The results suggest that Epstein-Barr virus (EBV) becomes associated with gastric medullary carcinoma.
authors.affiliation: 3o Cátedra de Patología, Hospital Misericordia.
authors.forename: A
authors.initials: A
authors.lastname: Rodriguez
authors.forename: H A
authors.initials: HA
authors.lastname: Cejas
authors.forename: M
authors.initials: M
authors.lastname: Martínez
authors.forename: C
authors.initials: C
authors.lastname: Cabral
mesh_terms: D018276:Carcinoma, Medullary / Q000473:pathology*; D006801:Humans; D008264:Macrophages / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000473:pathology*