title: Concomitant thyroid Malt lymphoma and papillary thyroid carcinoma.
abstract: The objective of this study was to describe the rare thyroid MALT lymphoma concomitant with papillary thyroid carcinoma in a male patient who was submitted to total thyroidectomy. Treatment and follow-up issues are addressed. Male patient complains of fast thyroid enlargement without lymphadenophaty and normal clinical exams. Total thyroidectomy was indicated and performed without any complications. The pathology showed multicentric papillary thyroid carcinoma, concomitant thyroid MALT lymphoma and Hashimoto's thyroiditis. The immunohistochemistry assay was positive for CD 20, CD 43, CD 79, AE1/AE3. The staging studies showed no evidence of both metastasis, Ann Harbor stage IE, without B symptoms. After RIT no further radiotherapy or chemotherapy was indicated. Nowadays the thyroglobulin is undetectable, without recurrences at two years of follow-up. It was concluded that primary thyroid MALT lymphoma is uncommon being the papillary thyroid carcinoma more frequent. Both occurring concomitantly is very rare and the treatment has to prioritize the tumor of worst prognosis at the discovery moment.
authors.affiliation: Clínica e Cirurgia de Cabeça e Pescoço, Hospital da Beneficência Portuguesa de São Paulo, São Paulo, SP, Brazil. giulianno_molina@hotmail.com
authors.forename: Giulianno Molina de
authors.initials: GM
authors.lastname: Melo
authors.forename: Danilo Anunciatto
authors.initials: DA
authors.lastname: Sguilar
authors.forename: Cyntia Moniz Figueira
authors.initials: CM
authors.lastname: Petiti
authors.forename: André Gustavo Gumz
authors.initials: AG
authors.lastname: Eichstaedt
authors.forename: Rogério Ramos
authors.initials: RR
authors.lastname: Caiado
authors.forename: Ricardo Antenor de Souza E
authors.initials: RA
authors.lastname: Souza
mesh_terms: D002291:Carcinoma, Papillary / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*