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Inicio Medicina Clínica (English Edition) Granulomatous mastitis associated with erythema nodosum: A case series of 42 pat...
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Vol. 158. Issue 5.
Pages 229-232 (March 2022)
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Vol. 158. Issue 5.
Pages 229-232 (March 2022)
Clinical report
Granulomatous mastitis associated with erythema nodosum: A case series of 42 patients
Mastitis granulomatosa asociada a eritema nudoso: estudio de 42 casos
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Carlos Moreno-Vílcheza,
Corresponding author
cmorenov@bellvitgehospital.cat

Corresponding author.
, Clàudia Llobera-Risa, Rosa María Peninb, María Jesús Plac, Francesca Mitjavilad, Joaquim Marcovala
a Servicio de Dermatología, Hospital Universitari de Bellvitge, IDIBELL, Universidad de Barcelona, Hospitalet de Llobregat, Barcelona, Spain
b Servicio de Anatomía Patológica, Hospital Universitari de Bellvitge, IDIBELL, Universidad de Barcelona, Hospitalet de Llobregat, Barcelona, Spain
c Servicio de Ginecología, Hospital Universitari de Bellvitge, IDIBELL, Universidad de Barcelona, Hospitalet de Llobregat, Barcelona, Spain
d Servicio de Medicina Interna, Hospital Universitari de Bellvitge, IDIBELL, Universidad de Barcelona, Hospitalet de Llobregat, Barcelona, Spain
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Table 1. Demographic and clinical characteristics of 42 patients with granulomatous mastitis.
Table 2. Comparison between patients with granulomatous mastitis with erythema nodosum and without erythema nodosum.
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Abstract
Background

Granulomatous mastitis (GM) is defined by the formation of granulomatous inflammation in breast tissue. Erythema nodosum (EN) is a reactive inflammatory panniculitis characterized by erythematous subcutaneous nodules in the lower limbs. The association of GM with EN has been rarely reported. Our aim was to retrospectively review our series of patients with GM to better characterize their features and their association with EN.

Methods

Cases histologically diagnosed as granulomatous inflammation in breast tissue between 1995 and 2020 were retrospectively reviewed.

Results

Forty-two women were diagnosed with GM. The average age at diagnosis was 41.619 years, and 59.5% were of South-American ethnicity. EN was associated with GM in 11.9% of the patients. Patients with EN were diagnosed earlier than isolated GM (0.4 months vs 6.81 months; P < .05). Ulceration in the GM was more prevalent in patients with associated EN (60% vs 14.7%; P < .05).

Conclusion

EN in patients with GM may reduce the evolution time and may help to diagnose this rare condition that mimics breast carcinoma.

Keywords:
Granulomatous mastitis
Erythema nodosum
Granulomatous disorders
Panniculitis
Breast cancer
Resumen
Introducción

La mastitis granulomatosa (MG) se define por la presencia de inflamación granulomatosa en el tejido mamario. El eritema nodoso (EN) es una paniculitis inflamatoria reactiva caracterizada por nódulos subcutáneos dolorosos en las extremidades inferiores. La asociación entre MG y EN ha sido descrita pero está poco estudiada. Nuestro objetivo fue analizar las características clínicas de las pacientes diagnosticadas de MG en nuestro centro y su asociación con EN.

Métodos

Se revisaron restrospectivamente los casos diagnosticados histológicamente de MG entre 1995 y 2020.

Resultados

Cuarenta y dos mujeres fueron diagnosticadas de MG. La edad media al diagnóstico fue de 41,619 años y el 59,5% tenían ascendencia sudamericana. El EN se asoció con MG en el 11,9% de las pacientes. Las pacientes con EN fueron diagnosticadas precozmente respecto a aquellas con MG aislada (0,4 meses frente a 6,81; P < ,05). La ulceración en la MG fue más prevalente en pacientes con EN asociado (60% vs 14,7%; P < ,05).

Conclusión

El EN en pacientes con GM puede facilitar el diagnóstico precoz de esta rara condición que imita el cáncer de mama.

Palabras clave:
Mastitis granulomatosa
Eritema nodoso
Enfermedades granulomatosas
Paniculitis
Cáncer de mama

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