Malignant Melanoma of Soft Parts (Clear Cell Sarcoma): A Case Report

2003 ◽  
Vol 30 (7) ◽  
pp. 550-555 ◽  
Author(s):  
Takuya Seike ◽  
Kazuya Matsumoto ◽  
Hideki Nakanishi ◽  
Ichiro Hashimoto ◽  
Yoshiaki Kubo ◽  
...  
Keyword(s):  
Case Report ◽  
Malignant Melanoma ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Cell Sarcoma

scholarly journals Molecular Characteristics of Genes and the Immune Microenvironment of a Rare Chest Malignant Tumor (Pulmonary Clear Cell Sarcoma): A Case Report

2021 ◽  
Vol 11 ◽  
Author(s):  
Xiaoling Xu ◽  
Ding Wang ◽  
Wei Wu ◽  
Hongyang Lu
Keyword(s):  
Case Report ◽  
Malignant Melanoma ◽  
Effective Treatment ◽  
Rare Disease ◽  
Malignant Tumor ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Molecular Characteristics ◽  
Immune Microenvironment ◽  
Cell Sarcoma

Pulmonary clear cell sarcoma is a rare malignant tumor that has rarely been reported and is challenging to diagnose, especially when differentiating from malignant melanoma. Currently, EWSR1-ATF1 is the key marker for distinguishing clear cell sarcoma from melanoma, but IHC has diagnostic limitations. We report a patient diagnosed with pulmonary clear cell sarcoma, in which an NGS was used to help with the pathological diagnosis. The exposure to the immune microenvironment in pulmonary clear cell sarcoma suggests that TIGIT-related drugs may be a new and effective treatment for this rare disease. Immune microenvironment-related markers, including PD-L1, CD8, TIM3, LAG3, and CD163, were negatively expressed in pulmonary clear cell sarcoma.

scholarly journals Is clear cell sarcoma a malignant form of psammomatous melanotic schwannoma?

2006 ◽  
Vol 21 (6) ◽  
pp. 1-4 ◽  
Author(s):  
Ahmet Şengöz ◽  
Erol Taşdemiroğlu ◽  
Halit Togay
Keyword(s):  
Malignant Melanoma ◽  
Nerve Root ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Histopathological Diagnosis ◽  
Total Resection ◽  
Cell Sarcoma ◽  
Melanotic Schwannoma ◽  
Psammomatous Melanotic Schwannoma

✓The authors present a case of clear cell sarcoma (CCS) in which the tumor originated in the S-1 nerve root and had been previously diagnosed as psammomatous melanotic schwannoma (PMS). This is the third case of a spinal nerve root origin for CCS reported in the English-language literature. The similar histogenesis of CCS and malignant melanoma supports the hypothesis that biological agents or immunotherapy are potentially important areas of investigation. The patient underwent S1–3 laminectomy and gross-total resection of the mass lesion. The border of the resection was extended 1 cm distal to the tumor margin. The postoperative period was uneventful. The new histopathological diagnosis was CCS (malignant melanoma of soft tissue). Despite total resection, the patient returned with disseminated disease at the 18-month follow-up visit. His follow-up magnetic resonance image of the lumbar spine revealed sacral L5–S3 involvement of the vertebral bodies along with disseminated cauda equina seeding. A CCS originating from peripheral nerves is quite rare. The histopathological and immunohistochemical appearance of CCSs resembles those of PMSs. Surgery should be the first choice of treatment.

Imprint cytology of clear cell sarcoma-like tumor of the gastrointestinal tract in the small intestine: A case report

2017 ◽  
Vol 45 (12) ◽  
pp. 1137-1141 ◽  
Author(s):  
Takashi Kato ◽  
Shin Ichihara ◽  
Hiroko Gotoda ◽  
Shunji Muraoka ◽  
Terufumi Kubo ◽  
...  
Keyword(s):  
Small Intestine ◽  
Case Report ◽  
Gastrointestinal Tract ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Imprint Cytology ◽  
Cell Sarcoma

scholarly journals Clear cell sarcoma of the right lumbar region: A case report and review of the literature

2014 ◽  
Vol 8 (4) ◽  
pp. 1625-1627
Author(s):  
XUE-LI YANG ◽  
SAN-JUN LU ◽  
JIE XUE ◽  
YAN-FEN WU ◽  
JUN-LING SHI
Keyword(s):  
Case Report ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Lumbar Region ◽  
Review Of The Literature ◽  
Cell Sarcoma ◽  
The Right

scholarly journals Phalangeal and Metacarpal Metastases from Clear Cell Sarcoma of the Kidney: A Case Report

1998 ◽  
Vol 39 (6) ◽  
pp. 1233
Author(s):  
Chan Kyo Kim ◽  
Joong Mo Ahn ◽  
Eung Yeop Kim ◽  
Hye Kyung Yoon ◽  
Bokyung Kim Han ◽  
...  
Keyword(s):  
Case Report ◽  
Clear Cell ◽  
Clear Cell Sarcoma ◽  
Cell Sarcoma

Epithelial-Type and Neural-Type Cadherin Expression in Malignant Noncarcinomatous Neoplasms With Epithelioid Features That Involve the Soft Tissues

2002 ◽  
Vol 126 (4) ◽  
pp. 425-431 ◽  
Author(s):  
William B. Laskin ◽  
Markku Miettinen
Keyword(s):  
Malignant Melanoma ◽  
Synovial Sarcoma ◽  
Soft Tissues ◽  
Clear Cell ◽  
Epithelioid Sarcoma ◽  
Clear Cell Sarcoma ◽  
Extraskeletal Myxoid Chondrosarcoma ◽  
Cell Sarcoma ◽  
Myxoid Chondrosarcoma ◽  
Poorly Differentiated

Abstract Context.—Transmembrane adhesion molecules, epithelial-type cadherin (ECAD) and neural-type cadherin (NCAD), help in regulating transformations between epithelial and mesenchymal cells in the developing embryo and in maintaining the epithelioid phenotype. Consequently, the presence of epithelioid cells in certain malignant noncarcinomatous neoplasms raises speculation that the expression of ECAD and NCAD in these neoplasms may have diagnostic significance. Objective.—To investigate the utility of ECAD and NCAD immunoexpression in distinguishing malignant (noncarcinomatous) neoplasms with epithelioid features that involve the soft tissues. Design.—Membranous immunoreactivity of anti-ECAD and anti-NCAD was evaluated on archived cases selected from the files of the Armed Forces Institute of Pathology. Results.—Epithelial-type cadherin was found in biphasic synovial sarcoma (35 of 35 cases), malignant melanoma (13/21), monophasic fibrous synovial sarcoma (13/26), clear cell sarcoma (4/9), poorly differentiated synovial sarcoma (3/13), diffuse mesothelioma (4/20), malignant epithelioid peripheral nerve sheath tumor (1/6), and epithelioid sarcoma (5/62). Neural-type cadherin was observed in chordoma (11/11), biphasic synovial sarcoma (30/35), diffuse mesothelioma (14/20), malignant melanoma (14/25), epithelioid sarcoma (24/63), epithelioid angiosarcoma (1/4), poorly differentiated synovial sarcoma (2/13), clear cell sarcoma (1/10), and monophasic fibrous synovial sarcoma (1/26). Eighteen cases of primary cutaneous squamous cell carcinomas all tested positive for ECAD, whereas NCAD was focally observed in 5 cases. No expression of either molecule was observed in cases of epithelioid hemangioendothelioma (n = 9), alveolar soft part sarcoma (n = 8), and extraskeletal myxoid chondrosarcoma (n = 7). Conclusions.—Epithelial-type and neural-type cadherins are found in a variety of noncarcinomatous neoplasms with epithelioid features that involve the soft tissues and can be utilized, in association with other immunomarkers, in distinguishing chordoma (100% NCAD) from extraskeletal myxoid chondrosarcoma and conventional chondrosarcoma of bone (0% NCAD), squamous cell carcinoma (100% ECAD) from epithelioid sarcoma (8% ECAD), and biphasic synovial sarcoma (100% ECAD) from diffuse mesothelioma (20% ECAD).

Malignant Gastrointestinal Neuroectodermal Tumor: a case report and a review of the literature

2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S66-S67
Author(s):  
B Youssef ◽  
D Asberry ◽  
R Mohamed
Keyword(s):  
Case Report ◽  
Gastrointestinal Tract ◽  
Clear Cell ◽  
Muscularis Propria ◽  
Clear Cell Sarcoma ◽  
Neuroectodermal Tumor ◽  
High Rate ◽  
Cell Sarcoma ◽  
Molecular Features ◽  
Eosinophilic Cytoplasm

Abstract Introduction/Objective Malignant gastrointestinal neuroectodermal tumor (GNET) is a rare soft tissue tumor arising in the wall of the gastrointestinal tract. The GNET was first described as an osteoclast rich tumor of the gastrointestinal tract with features resembling clear cell sarcoma, with only few cases reported in the literature. Methods/Case Report We report a case of a 71-year-old man with a past medical history of hypertension, hyperlipidemia, and benign prostatic hyperplasia presented with complaints of dyspnea, dizziness, fatigue, black stools, and a recent syncopal episode. Laboratory testing revealed anemia (HB 5.4 g/dL). Esophagogastroduodenoscopy demonstrated a submucosal gastric mass. An abdominal CT scan confirmed a 7.8 cm mass along the gastric cardia and fundus. Results (if a Case Study enter NA) Biopsy rendered a gastrointestinal neuroectodermal tumor (GNET). Microscopically, the tumor cells were spindle with eosinophilic cytoplasm and arranged in fascicules. They were positive for CD56, CD99, and Fli-1, synaptophysin, and negative for chromogranin, TTF-1, SMA, desmin, CD34, EMA, pan-cytokeratin, and lymphoid markers. Two months later, further imaging confirmed metastasis to the liver and spleen. GNETs typically arise within the muscularis propria of the gastrointestinal tract and often extend into the submucosa and subserosa. Conclusion The most important differential of GNET is the clear cell sarcoma of the gastrointestinal tract (CCS-GI). Both share similar morphological as well as molecular features and show S100 positivity; however, the lack of melanocytic differentiation in GNET distinguishes it from CCS-GI. Both typically show rearrangements of the EWSR1 gene, with t(12;22) (q13;q12) EWSR1-ATF1 or t(2;22)(q34;q12) EWSR1-CREB1 fusions. Pathologists should be aware of GNET diagnostic entity due to its aggressive behavior and high rate of recurrence and mortality even after complete resection.

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