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Summary: Endometriosis is a common but often underdiagnosed chronic gynaecological disease. Endometriosis mimics other diagnoses both clinically and radiographically, presenting a diagnostic challenge. Endometriosis can be categorised as superficial pelvic endometriosis, deep invasive endometriosis (DIE) or endometrioma. Endometrioma and DIE, including polypoid endometriosis, can masquerade as invasive neoplasms. Endometriosis can be misdiagnosed in less common locations or during pregnancy. Ultrasound is the initial investigation for endometriosis; however, MRI is advantageous in providing a larger field of view for increased detection of nodules as well as distinguishing malignancy with greater certainty. This review highlights endometriosis mimics, pitfalls and atypical cases on MRI. [ABSTRACT FROM AUTHOR]

Summary: Migration of tattoo pigment to axillary lymph nodes mimicking calcifications is a recognized phenomenon, however, pigment in an intra‐mammary node masquerading as a breast mass is a rare complication of cosmetic tattoos. As the prevalence of tattooing increases among women presenting to Breastscreen, radiologists may expect to encounter this lesion mimicking a breast neoplasm. We present a 50‐year‐old female with extensive tattoos on her arms, chest wall and abdomen, recalled for a small calcified breast mass on her first screening mammogram. Tomosynthesis‐guided vacuum‐assisted biopsy demonstrated intra‐mammary lymph node with abundant tattoo pigment. [ABSTRACT FROM AUTHOR]