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These studies suggest that ulcerating cancer wounds can attract inflammatory cells, potentially worsening prognosis, and are commonly associated with squamous cell carcinoma and chronic ulcers.
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Research has long suggested a connection between wound healing and cancer, often describing cancer as a "wound that does not heal." Recent studies using zebrafish models have provided deeper insights into this relationship. Specifically, it has been observed that inflammatory cells, such as neutrophils, are drawn to wounds and subsequently diverted to pre-neoplastic cells, leading to increased proliferation of these cells. This interaction is mediated by prostaglandin E2 (PGE2), a trophic signal induced by wound inflammation. In human patients, a strong correlation has been found between neutrophil presence at melanoma ulceration sites and increased cell proliferation, which is associated with poor prognostic outcomes.
Ulceration is a recognized risk factor for surgical-site infections (SSI) in skin cancer patients. A multicenter observational study aimed to determine the proportion of patients developing SSI after the excision of ulcerated skin cancers. The study found that 38.8% of participants developed SSI within four weeks post-surgery. The organisms identified from surface swabs of the ulcerated tumors varied, with a significant presence of Gram-positive species, including Staphylococcus aureus. These findings highlight the need for further research to determine the efficacy of perioperative antibiotics in preventing SSI in patients with ulcerated tumors.
Between 5% and 10% of cancer patients develop malignant wounds, which can manifest as painful, spreading invasions of the skin, particularly over the breast. Marjolin's ulcers, a type of malignant wound, develop in open wounds after a long period and are associated with chronic inflammation or scarring. These ulcers can lead to squamous cell carcinoma, which may arise from various clinical situations, including chronic ulcers, sinuses, osteomyelitis, radiotherapy, burn scars, and pressure ulcers. Basal cell carcinoma is more frequently observed in ulcers associated with venous insufficiency. The diagnosis of degenerescence, as opposed to an ulcerated tumor, is typically considered when an ulcer has persisted for at least three years.
The current lack of comprehensive epidemiological data on malignant wounds could be addressed by more frequent consideration of the diagnosis and systematic biopsy of chronically open wounds. This approach would help in better understanding the prevalence and characteristics of cancers that develop over chronic ulcers, thereby improving patient outcomes through early detection and treatment.
Ulcerating cancer wounds present significant challenges in both diagnosis and treatment. The inflammatory response to wounds can exacerbate cancer progression, and ulceration increases the risk of surgical-site infections. Understanding the types and prevalence of malignant wounds, such as Marjolin's ulcers, is crucial for improving patient care. Further research and systematic biopsy practices are essential for advancing our knowledge and management of these complex conditions.
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