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Soft-tissue sarcomas in the Asia-Pacific region: a systematic review

Ngan R, Wang E, Porter D, Desai J, Prayogo N, Devi B, et al.

Asian Pac J Cancer Prev, 2013;14(11):6821-32.

BACKGROUND: Soft-tissue sarcomas require tailored and multidisciplinary treatment and management. However, little is known about how sarcomas are treated and managed throughout the Asia-Pacific region.

MATERIALS AND METHODS: MEDLINE was systematically searched using prespecified criteria. Publications (previous 10 years) that reported tumour characteristics, treatment patterns, survival outcomes, and/or safety outcomes of patients with soft-tissue sarcoma were selected. Exclusion criteria were studies of patients <18 years of age; ≤ 10 patients; countries other than Australia, Hong Kong, Indonesia, Korea, Malaysia, New Zealand, Philippines, Singapore, Taiwan, or Thailand; >20% benign tumours; sarcomas located in bones or joints; gastrointestinal stromal tumour; Kaposi's sarcoma; or not reporting relevant outcomes.

RESULTS: Of the 1,822 publications retrieved, 35 (32 studies) were included. Nearly all patients (98%, 1,992/2,024; 31 studies) were treated with surgery, and more studies used adjuvant radiotherapy than chemotherapy (24 vs 17 studies). Survival outcomes and recurrence rates varied among the studies because of the different histotypes, sites, and disease stages assessed. Only 5 studies reported safety findings.

CONCLUSIONS: These findings highlight the lack of specific data available about soft-tissue sarcomas in the Asia-Pacific region. Better efforts to understand how the sarcoma is managed and treated will help improve patient outcomes in the region.

Matched MeSH terms: Sarcoma/diagnosis

Fulltext Giant epidermal cyst with intramuscular extension: a rare occurrence

Low SF, Sridharan R, Ngiu CS

BMJ Case Rep, 2015 Feb 06;2015.

PMID: 25661748 DOI: 10.1136/bcr-2013-202534

An epidermal cyst is the most common type of cyst to occur in subcutaneous tissue. When its size is greater than 5 cm, it is recognised as a giant epidermal cyst. A subcutaneous giant epidermal cyst with intramuscular extension is extremely rare. The authors report a case of a 74-year-old man who presented with a painless, slow-growing left gluteal mass of 6-month duration. Examination revealed a large left gluteal mass that was fixed to the underlying structures. A small epidermal cyst with visible punctum was noted at the medial aspect of the mass. MRI demonstrated a large, lobulated left gluteal lesion measuring 20 cm×16 cm×10 cm. The lesion was partly within the gluteal maximus muscle and partly within the subcutaneous tissue. MRI and ultrasound features of the lesion were consistent with a giant epidermal cyst with intramuscular extension. The lesion was excised and histology confirmed the diagnosis.

Matched MeSH terms: Sarcoma/diagnosis

Squamous cell carcinoma of the larynx with sarcoma like stroma

Ahluwalia HS, Kandiah S, Kaur H

Med J Malaysia, 1977 Dec;32(2):172-4.

PMID: 614488

Matched MeSH terms: Sarcoma/diagnosis*

Non-ulcerative soft tissue mycosis of long duration mimicking soft tissue sarcoma--a case report

Omar E, Murugesan A, Bakar NH, Wan Z

Southeast Asian J Trop Med Public Health, 2005 Nov;36(6):1530-2.

PMID: 16610657

Soft tissue mycosis usually presents with a triad of tumefaction, suppuration and ulceration. We report an unusual case of soft tissue mycosis in a 42-year-old male teacher who presented with painless swelling over the anterolateral aspect of the right shin for 4 years duration.

Matched MeSH terms: Sarcoma/diagnosis*

Fulltext Resection and reconstruction of retroperitoneal sarcoma of spinal roots

Imran Y, Zulmi W, Faisham WI, Zainal M

Med J Malaysia, 2004 Dec;59 Suppl F:75-7.

PMID: 15941171

Matched MeSH terms: Sarcoma/diagnosis

Clear cell sarcoma of kidney: report of the first Malaysian case

Looi LM, Cheah PL, Lin HP

Pathology, 1992 Jan;24(1):34-6.

PMID: 1374551

Clear cell sarcoma of kidney (CCSK) is a rare but distinct tumor of childhood frequently confused with Wilms' tumor (nephroblastoma). It has a characteristic histology, a marked predilection for metastasis to bone, and an aggressive clinical course with a high relapse rate in spite of surgical excision, chemotherapy and radiotherapy. We report the first histologically proven CCSK in a Malaysian patient. This was an 8-mth-old Malay boy who was clinically diagnosed to have stage I Wilms' tumor. Despite treatment, he developed multiple metastases 10 mths after initial presentation and died soon after. Emphasis is placed on recognizing this entity in view of (1) its naturally aggressive behaviour and (2) the prospect of improving prognosis with currently recommended intensified chemotherapeutic regimes. Its immunohistochemical profile of vimentin-positivity and negativity for epithelial membrane antigen, cytokeratin and Factor-8 related antigen is more in favour of a mesenchymal or glomerular origin than a tubular or vascular origin.

Matched MeSH terms: Sarcoma/diagnosis

Fulltext Does lightning strike twice?

Qi Qi C, Ajit Singh V

BMJ Case Rep, 2012;2012.

PMID: 22892228 DOI: 10.1136/bcr.01.2012.5518

The authors present an interesting case under our follow-up who has had five different forms of tumours with different pathologies throughout his lifetime. He started off with hepatoma, followed by pleomorphic sarcoma of the thigh, adenocarcinoma of the prostate, meningioma and finally schwanoma. He is still alive to this date.

Matched MeSH terms: Sarcoma/diagnosis

Fulltext Avoiding diagnostic pitfalls in mimics of neoplasia: the importance of a comprehensive diagnostic approach

Samsudin EZ, Kamarul T, Mansor A

Singapore Med J, 2015 May;56(5):e92-5.

PMID: 26034328 DOI: 10.11622/smedj.2015082

Any medical diagnosis should take a multimodal approach, especially those involving tumour-like conditions, as entities that mimic neoplasms have overlapping features and may present detrimental outcomes if they are underdiagnosed. These case reports present diagnostic pitfalls resulting from overdependence on a single diagnostic parameter for three musculoskeletal neoplasm mimics: brown tumour (BT) that was mistaken for giant cell tumour (GCT), methicillin-resistant Staphylococcus aureus osteomyelitis mistaken for osteosarcoma and a pseudoaneurysm mistaken for a soft tissue sarcoma. Literature reviews revealed five reports of BT simulating GCT, four reports of osteomyelitis mimicking osteosarcoma and five reports of a pseudoaneurysm imitating a soft tissue sarcoma. Our findings highlight the therapeutic dilemmas that arise with musculoskeletal mimics, as well as the importance of thorough investigation to distinguish mimickers from true neoplasms.

Matched MeSH terms: Sarcoma/diagnosis; Osteosarcoma/diagnosis

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