特发性肉芽肿性乳腺炎（IMD）是一种慢性的良性炎症性乳腺疾病，可以模拟乳腺癌。它更常见于育龄妇女，对炎症性乳腺肿瘤的诊断构成了挑战。我们报告了一位26岁的女患者，出现了乳腺炎症状。临床检查显示病人无热，左侧乳腺肿块不规则光滑，大小为4厘米，伴有结痂和多发性拳状瘢痕，按压可流出脓液，伴有可活动的同侧腋窝淋巴结肿大。余下的体格检查显示双腿有炎症性红斑斑丘疹。进行乳腺X线和乳腺超声检查，随后进行组织活检，发现纤维性乳腺病。由于症状持续存在，进行了切除肿块手术。病理学检查显示为肉芽肿性乳腺炎,没有明确的病因。开始使用皮质类固醇合并抗生素治疗，两个月后症状完全消失。版权所有：Alpha Boubacar Conte等。

Idiopathic granulomatous mastitis (IMD) is a chronic benign inflammatory disease of the breast which can mimic breast cancer. It is more common in young women of childbearing age and poses a challenge in diagnosis of inflammatory breast tumor. We report the case of a 26-year-old female patient who presented with inflammatory breast. Clinical examination showed apyretic patient with edematized and painless irregular smooth mass in the left breast measuring 4 cm surmounted by crusts and multiples fistulizing scars discharging pus by applying pressure, with mobile ipsilateral axillary adenopathy. The remainder of the physical examination showed inflammatory erythematous patches on both legs. A mammogram plus breast ultrasound was performed followed by biopsy that objectified fibrous mastopathy. Lumpectomy was performed due to the persistence of symptoms. Anatomopathological examination objectified granulomatous mastitis. Etiological research didn't identify a clear cause. Corticotherapy associated with antibiotic therapy was started with complete regression of symptoms after two months.Copyright: Alpha Boubacar Conte et al.