Leiomyosarcomas

Großes

Leiomyosarkom des Uterus bei einer Mittsiebzigerin. Computertomographie axial und sagittal.

Leiomyosarkom

des Uterus bei einer 75 jährigen Patientin in der Computertomographie links axial, rechts coronar. Der Uterus ist deutlich vergrößert (in einer Voruntersuchung wenige Monate zuvor noch klein atroph). Es zeigt sich eine unregelmäßige Kontrastierung suggestiv für Einblutung oder Nekrose.

Wikipedia • CC BY-SA 3.0

Tumor and

tumorlike conditions of the pleura and juxtapleural region: review of imaging findings. Diagnosis: leiomyosarcoma. Technique: standard chest radiography and contrast-enhanced chest CT. Description: Postero-anterior and lateral chest radiographs (a, b) in a 64-year-old man show a well-delineated mass located posteriorly in the left lower lobe. Axial contrast-enhanced CT (c) reveals a smooth lobular mass with intralesional necrosis. There is no locoregional invasion of the adjacent structures. Imaging findings are relatively aspecific. On histopathologic examination, findings were consistent with a leiomyosarcoma

insightsimaging.springeropen.com • CC-by-4.0

Uterine

leiomyosarcoma • Uterine leiomyosarcoma - Ganzer Fall bei Radiopaedia

Radswiki T, Uterine leiomyosarcoma. Case study, Radiopaedia.org (Accessed on 03 Dec 2023) https://doi.org/10.53347/rID-12064 • CC by-nc-sa 3.0 (modified)

Uterine

leiomyosarcoma • Uterine leiomyosarcoma - Ganzer Fall bei Radiopaedia

Radswiki T, Uterine leiomyosarcoma. Case study, Radiopaedia.org (Accessed on 03 Dec 2023) https://doi.org/10.53347/rID-12065 • CC by-nc-sa 3.0 (modified)

Leiomyosarcoma

• Leimyosarcoma of the small intestine - Ganzer Fall bei Radiopaedia

Ranschaert E, Leimyosarcoma of the small intestine. Case study, Radiopaedia.org (Accessed on 25 May 2024) https://doi.org/10.53347/rID-12131 • CC by-nc-sa 3.0 (modified)

Pulmonary

metastases • Lung metastases from a leiomyosarcoma - Ganzer Fall bei Radiopaedia

Bickle I, Lung metastases from a leiomyosarcoma. Case study, Radiopaedia.org (Accessed on 08 Jan 2023) https://doi.org/10.53347/rID-83678 • CC by-nc-sa 3.0 (modified)

Leiomyosarcoma

• Leiomyosarcoma of the uterus - Ganzer Fall bei Radiopaedia

Niknejad M, Leiomyosarcoma of the uterus. Case study, Radiopaedia.org (Accessed on 25 May 2024) https://doi.org/10.53347/rID-93179 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

Leiomyosarcomas are extremely rare malignant neoplasms that originate from smooth muscle cells and may be considered the malignant counterpart of a leiomyoma. They are classified as a soft tissue tumor and account for ~8% of malignant soft tissue tumors .

Pathology

Location

Leiomyosarcomas can potentially occur anywhere where there is smooth muscle. Commonly described sites include the following:

uterus: uterine leiomyosarcoma: most common (account for up to one-third of uterine sarcomas )
retroperitoneum: retroperitoneal leiomyosarcoma; most common non-uterine site
stomach: gastric leiomyosarcoma
esophagus : esophageal leiomyosarcoma
small intestine: leiomyosarcoma of the small intestine
liver: hepatic leiomyosarcoma
bladder
nasopharynx
bone: primary leiomyosarcoma of bone
venous structures
- inferior vena cava leiomyosarcoma
- pulmonary artery leiomyosarcoma
central nervous system: primary intracranial leiomyosarcoma

Other sites include

spermatic cord: spermatic cord leiomyosarcoma
pulmonary artery: primary pulmonary artery leiomyosarcoma

Radiographic features

Morphological imaging features would be invariably dependent on the site (refer to individual articles). Generally, they tend to be large masses, especially with abdominopelvic lesions.