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Vol. 58. Issue 1.
Pages 25-30 (January 2007)
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Vol. 58. Issue 1.
Pages 25-30 (January 2007)
Küttner's Tumour (Chronic Sclerosing Sialadenitis). Clinical, Pathological, and Immunohistochemical Study in 8 Cases of a Little-Known Entity
Tumor de Küttner (sialoadenitis crónica esclerosante). Estudio clinicopatológico e inmunohistoquímico de 8 casos de una entidad poco reconocida
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Nayeli Martínez Consuegraa, Javier Baquera Herediaa, Rodolfo Sánchez Cisnerosb, María Luisa Márquez Rochac, Carlos Ortiz-Hidalgoad,
Corresponding author
cortiz@abchospital.com

Correspondence: Departamento de Patología. Centro Médico ABC. Sur 136#116 Las Américas. México DF 01120. México.
a Departamento de Patología, Centro Médico ABC, México DF, México
b Departamento de Patología, Centro Médico Nacional 20 de Noviembre, ISSSTE, México DF. México
c Departamento de Patología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, México DF, México
d Departamento de Biología Celular y Tisular, Universidad Panamericana, México DF, México
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Objective

To present the clinical-pathological characteristics of Küttner's tumour (KT) or chronic sclerosing sialadenitis.

Material and method

We studied 8 cases of KT that were graduated histologically according to the Seifert grading system. An immunohistochemistry panel including CD20, CD3, and keratin AE1-3 was performed.

Results

All cases involved the sub-maxillary gland. Microscopically the cases were in stages 2, 3, and 4. There was a chronic inflammatory infiltrate, marked fibrosis, variable degrees of parenchymal atrophy, PAS+ intraluminal material, and microliths. The infiltrate was polymorphic and polyclonal, without lymphoepithelial lesions.

Conclusions

Although it has a typical clinical and pathological presentation and was described more than a century ago, KT remains under-diagnosed and often reported as non-specific inflammatory infiltrate or as “low grade lymphoma.” In this latter diagnosis lies the greatest importance for recognizing KT, as confusion with lymphoma would result in a different therapeutic approach.

Key words:
Küttner's tumour
Chronic sclerosing sialadenitis
Sub-maxillary gland
Objetivo

Presentar las características clinicopatológicas del tumor de Küttner (TK) o sialoadenitis crónica esclerosante.

Material y método

Se estudiaron 8 casos de TK. Se graduaron los casos histológicamente de acuerdo con la clasificación de Seifert. Se realizó una batería de anticuerpos contra CD20, CD3 y queratina AE1-3.

Resultados

Todos los casos afectaron a la glándula submaxilar. Microscópicamente se encontraban en estadios 2, 3 y 4. Había inflamación crónica folicular y fibrosis acentuada, con atrofia parenquimatosa variable, material PAS+ intraluminal y microcalcificaciones. El infiltrado inflamatorio fue polimorfo, policlonal y sin lesiones linfoepiteliales.

Conclusiones

A pesar de su descripción hace más de un siglo y su presentación clínica e histopatológica característica, el TK es poco diagnosticado y a menudo se informa como proceso inflamatorio inespecífico o como linfoma de bajo grado. En este último diagnóstico radica la mayor importancia del reconocimiento del TK, ya que resultaría en un manejo terapéutico diferente.

Palabras clave:
Tumor de Küttner
Sialoadenitis crónica esclerosante
Glándula submaxilar

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