Head & neck
October 15, 2026 · via Europe PMC
Cutaneous Leiomyosarcoma of the Head and Neck: Appreciation of a More Indolent Biological Behavior and Implications for Its Management.
de Bree E, de Bree R, Chiesa-Estomba C, +5 more, Ferlito A
AI summary — for doctors, generated from the abstract only
Cutaneous leiomyosarcoma, including in the head and neck, behaves indolently with low metastatic potential and excellent disease-specific survival.
What was studied
Narrative review of the biological behavior of cutaneous leiomyosarcoma, with attention to the head and neck.
Key findings
- The condition is located in the head and neck in 21%-33% of cases, with local recurrence of 2%-18%.
- Only 3% develop metastatic disease at 10 years, and 5-year disease-specific survival is 96%-100%.
- Positive or close surgical margins are the main recurrence risk factor, and no data support adjuvant treatment.
Clinical relevance
Surgeons can prioritize adequate margins and consider focused, time-limited surveillance centered on physical examination.
Who should care
Limitations
A narrative review with no described systematic search methods, relying on mostly small, retrospective series of a rare tumor.
Cutaneous leiomyosarcoma is far less aggressive than other leiomyosarcomas, so management should focus on clear margins.
This is an AI-generated summary of the published abstract, not a clinical recommendation. It may not reflect the full text or subsequent updates — verify against the original source before acting on it.
Abstract
BACKGROUND
Leiomysosarcoma (LMS) is generally associated with high metastatic potential and poor survival. Cutaneous LMS (cLMS) has been considered a different entity with more indolent biological behavior.
METHODS
A narrative review was performed to assess the biological behavior of cLMS, with special attention for the head and neck location.
RESULTS
cLMS is located in the head and neck in 21%-33%. The local recurrence rate is 2%-18%, while only 3% develops metastatic disease at 10 years. The most important risk factor of recurrent disease is positive/close surgical margins, with a trend for increased risk at the head and neck. The vast majority of recurrences are local and appear during the first few years. No data support adjuvant treatment. The 5-year disease-specific survival is 96%-100%.
CONCLUSIONS
cLMS exhibits a moderate risk of local recurrence, low metastatic potential, and excellent disease-specific survival. Surveillance may be focused on physical examination and limited in duration.
DOI
10.1002/hed.70512
PMID
42885217
Research metadata (titles, abstracts, authors, publication dates) is sourced from Europe PMC, which aggregates content from PubMed/MEDLINE, PubMed Central, and other providers under the U.S. National Library of Medicine (NLM/NCBI). NLM does not claim copyright on abstracts; the original journal publishers or authors may hold rights to the full articles. AI-generated summaries are derived only from the abstract, never the full text, and are always labeled as AI-generated.
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