MALT lymphoma of the parotid gland with cutaneous involvement




Sofía Olivares-Blanco, Servicio de Dermatología, Hospital Interzonal General de Agudos José de San Martín, La Plata. Buenos Aires, Argentina
Eliana M. Gerez, Servicio de Dermatología, Hospital Interzonal General de Agudos José de San Martín, La Plata. Buenos Aires, Argentina
Florencia Dauría, Servicio de Dermatología, Hospital General San Martín de La Plata, La Plata, Argentina
Mª Amalia-Gómez, Servicio de Dermatología, Hospital General San Martín de La Plata, La Plata, Argentina
Eugenia Miraglia, Servicio de Dermatología, Hospital General San Martín de La Plata, La Plata, Argentina
Mª Michelena, Servicio de Dermatología, Hospital General San Martín de La Plata, La Plata, Argentina
Gabriela Arena, Servicio de Dermatología, Hospital General San Martín de La Plata, La Plata, Argentina
Roxana Maradeo, Servicio de Dermatología, Hospital Interzonal General de Agudos José de San Martín, La Plata. Buenos Aires, Argentina


Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is the most common type of primary parotid lymphoma, and corresponds to a B-cell non-Hodgkin lymphoma. This type of tumor has been associated many times with autoimmune diseases such as Sjögren’s syndrome and systemic lupus erythematosus. Histopathological diagnosis is not always easy because it can be preceded and confused with reactive inflammatory lesions; it is therefore necessary to maintain a high level of suspicion by selecting biopsies which allow to appreciate the histological architecture and to include evaluation of the immunophenotype. We present a clinical case of a parotid MALT lymphoma with cutaneous metastases, which allowed us to arrive at the diagnosis, staging and appropriate treatment. There are few reported cases of cutaneous secondary pathology due to a parotid MALT lymphoma. The interest of this publication is to highlight a case of low incidence and conduct a review of the medical literature.



Keywords: Parotid MALT lymphoma. Cutaneous involvement. Skin metastases.