Endometrioid adenocarcinoma of the endometrium

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Vaginal bleeding.

Patient Data

Age: 65 years
Gender: Female

Anteverted retroflexed uterus with moderate thickening of the endometrial-myometrial functional zone (thickness = 13 mm) suggestive of diffuse adenomyosis.

Small relatively well-defined endometrial mass enlarging the endometrial cavity with no evidence of myometrial invasion. It displays an intermediate signal on T1, slightly high signal on T2 with restricted diffusion and moderate heterogeneous enhancement on postcontrast sequences. No pelvic lymphadenopathy is seen.

Atrophied ovaries.

Case Discussion

MRI features of an endometrial mass with no evidence of myometrial invasion, pathologically proven as endometrioid adenocarcinoma in a patient with adenomyosis. The coexistence of adenomyosis and endometrioid cancer was already reported in the literature 1.

Endometrioid carcinoma of the endometrium is the most common histological subtype of endometrial carcinoma (85-90% of cases). It is considered a type I carcinoma of the uterus with slow progression and a relatively good prognosis.

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