PMC6098919_01
Well-defined lesion, anteromedial to the right external iliac vessels.
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MRI revealed a well-defined regular contour lesion, measuring 5.3 x 4.8 cm with isointense signals on T2-weighted images, anteromedial to right external iliac vessels (Figure 1).
PET/CT scan showing well-defined heterogeneously enhancing lesion in the right iliac fossa along the anterior abdominal wall.
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PET/CT scan (Figure 2) showed a well-defined heterogeneously enhancing lesion in the right iliac fossa abutting the adjacent bowel loops measuring approximately 4.9 x 5.1 cm.
Intraoperative picture showing pedunculated mass arising from the caecum.
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Operative findings revealed 5 x 4 cm solid thin pedicled, well encapsulated, and mobile mass arising from the caecum, without being adherent to surrounding bowel loops or other structures (Figure 3).
Hematoxylin and eosin stain of caecal endometrial stromal sarcoma, showing round to oval spindle-shaped nuclei with nuclear atypia.
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Histopathological examination revealed features of high-grade endometrial stromal sarcoma (Figure 4).
Immunohistochemistry picture showing CD10 positivity.
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Immunohistochemistry revealed CD10 (Figure 5), estrogen receptor (ER, Figure 6), and progesterone receptor (PR, Figure 7) positivity.
Immunohistochemistry picture showing estrogen receptor positivity.
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Immunohistochemistry revealed CD10 (Figure 5), estrogen receptor (ER, Figure 6), and progesterone receptor (PR, Figure 7) positivity.
Immunohistochemistry picture showing progesterone receptor positivity.
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Immunohistochemistry revealed CD10 (Figure 5), estrogen receptor (ER, Figure 6), and progesterone receptor (PR, Figure 7) positivity.