Radiological findings of primary retroperitoneal ewing sarcoma

Ulusan, Şerife; Koç, Zafer; Canpolat, Emine Tuba; Çolakoğlu, Tamer

doi:10.1080/02841850701408244

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…On thyroid ultrasound, EoES of the thyroid appears as a nonspecific, well circumscribed, hypo-echoic soft tissue mass without tissue calcifications. CT scan is helpful in tumor staging, in identifying hemorrhage, necrosis, cyst formation or calcifications within the tumor, and evaluating response to chemotherapy [7]. MRI helps in delineating the extent of the soft tissue lesion and defining its relationship to the adjacent trachea, esophagus and neurovascular structures [8].…”

Section: Discussionmentioning

confidence: 99%

Extra-osseous Ewing sarcoma of the thyroid gland mimicking a hemorrhagic cyst of Hashimoto thyroiditis

Hachem¹,

Jungels²,

Aubain³

et al. 2017

JCRC

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Ewing’s family of tumors, including Ewing sarcoma, Askin tumor, and peripheral primitive neuroectodermal tumors, were first identified by James Ewing in 1921. Ewing sarcoma is more common in bones. However, extraosseous Ewing sarcoma (EoES) is a very rare separate entity and was first described by Tefft and al. in 1969. It is a highly malignant round-cell tumor and contains a reciprocal translocation between chromosomes 11 and 22, t(11;22). In this report, we present the case of a 34 years old female patient who was unfortunately diagnosed with Ewing sarcoma of the thyroid after being operated for a hemorrhagic cyst in a context of Hashimoto thyroiditis.The patient was followed at the endocrinology department for an auto-immune thyroiditis for two years. She complained of neck pain and a suspicious hemorrhagic cyst was discovered on thyroid ultrasound. She underwent total thyroidectomy; three weeks later, she suffered from right sided firm swelling in her neck. The pathology was in favor of EoES of the thyroid. To date and to the best of our knowledge, this is the first case of Ewing sarcoma of the thyroid in auto-immune thyroiditis. EoES of the thyroid is a very rare entity and should be considered in the differential diagnosis of a solid tumor in the thyroid. Diagnosis is based on ultrastructural examination, immunostaining and evidence of abnormal translocation t(11;22). It is usually an aggressive disease.Early diagnosis with adequate surgical management and chemotherapy are the mainstay of the treatment and may change the outcome.

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Section: Discussionmentioning

confidence: 99%

Extra-osseous Ewing sarcoma of the thyroid gland mimicking a hemorrhagic cyst of Hashimoto thyroiditis

Hachem¹,

Jungels²,

Aubain³

et al. 2017

JCRC

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“…Commonly affected extraskeletal sites are the paravertebral spaces, lower extremities, head and neck, and pelvis [ 2 , 3 , 5–9 ] . Other rare reported locations of extraskeletal Ewing sarcoma are various and include the retroperitoneum, orbit, skin, and chest wall [ 10–13 ] . To the best of our knowledge, only one previous paper reported a Ewing sarcoma involving the abdominal wall [ 14 ] .…”

Section: Discussionmentioning

confidence: 99%

“…The imaging features soft tissue Ewing sarcoma are non-specific [ 3 , 8 , 9 , 11 ] . It often presents as a well-limited mass which should not be confused with a benign lesion.…”

Section: Discussionmentioning

confidence: 99%

CASE REPORT: Extraskeletal Ewing sarcoma of the abdominal wall

Askri

Farhat²,

Ghariani³

et al. 2008

Cancer Imaging

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Ewing sarcoma is most commonly a bone tumour which has usually extended into the soft tissues at the time of diagnosis. Exceptionally, this tumour can have an extraskeletal origin. Clinical or imaging findings are non-specific and diagnosis is based on histology. We report a case of an extraskeletal Ewing sarcoma developed in the soft tissues of the abdominal wall in a 35-year-old woman who presented a painful abdominal wall tumefaction. Ultrasongraphy and computed tomography showed a large, well-defined soft tissue mass developed in the left anterolateral muscle group of the abdominal wall. Surgical biopsy was performed and an extraskeletal Ewing sarcoma was identified histologically.

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“…A variety of visceral locations have been reported [ 168 , 169 ]. Retroperitoneal extraskeletal ESs are rare [ 170 , 171 ]. Although the majority of cases are sporadic, germline mutations have been detected in around 10% of cases [ 172 ].…”

Section: Rare Retroperitoneal Sarcomasmentioning

confidence: 99%

Retroperitoneal Sarcomas: An Update on the Diagnostic Pathology Approach

Choi

2020

Diagnostics

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Retroperitoneal sarcomas are a heterogenous group of rare tumors arising in the retroperitoneum. Retroperitoneal sarcomas comprise approximately 10% of all soft tissue sarcomas. Though any soft tissue sarcoma histologic types may arise in the retroperitoneal space, liposarcoma (especially well-differentiated and dedifferentiated types) and leiomyosarcoma do so most commonly. Retroperitoneal sarcomas are diagnostically challenging, owing to their diversity and morphological overlap with other tumors arising in the retroperitoneum. An accurate diagnosis is necessary for correct management and prognostication. Herein, we provide an update on the diagnostic approach to retroperitoneal sarcomas and review their key histologic findings and differential diagnoses.

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Radiological findings of primary retroperitoneal ewing sarcoma

Abstract: Ewing sarcomas are most commonly located in bone, while extraskeletal involvement of the retroperitoneum is extremely rare. We describe the radiologic and pathological findings in an adult patient with retroperitoneal extraskeletal Ewing sarcoma.

Cited by 16 publications

References 10 publications

Extra-osseous Ewing sarcoma of the thyroid gland mimicking a hemorrhagic cyst of Hashimoto thyroiditis

Extra-osseous Ewing sarcoma of the thyroid gland mimicking a hemorrhagic cyst of Hashimoto thyroiditis

CASE REPORT: Extraskeletal Ewing sarcoma of the abdominal wall

Retroperitoneal Sarcomas: An Update on the Diagnostic Pathology Approach

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