case_images: PMC11163928_01
case_images: Abscesses and nodules can be seen merging on the head to form sinus tracts and sulcus-like structures.
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case_images: Examination found multiple scattered nodules and cysts on the head, with obvious fluctuations, accompanied by pain and tenderness symptoms, the top of the head and the back of the occipital were heavier, and some of them fused to form a sinus (Figure 1).
case_images: The scalp is fixed, the infected wound is exposed for easy application of medicine, and high-energy red light is irradiated.
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case_images: The scalp is turned over and fixed on the surrounding normal scalp with sutures (Figure 2).
case_images: Photodynamic therapy (20% concentration of 5-aminolevulinic acid solution (Shanghai Fudan Zhangjiang Bio-Pharmaceutical Co. Ltd. Shanghai, China)), applied to the inner side of the scalp, protected from light for 3 h, then 633 +- 10 nm Large spot irradiation, part of the sinus area combined with optical fiber irradiation for 30 min, the energy intensity is 100 mw/cm2.
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case_images: The 5-ALA was incubated on the inside of the scalp, protected from light for 3 h, and then irradiated with a narrow-band red light (633 +- 10 nm, LED-IB, Wuhan Yage photoelectric technology Co., Ltd, China), and part of the sinus area was irradiated with optical fiber for 30 min, with an energy intensity of 100 mw/cm2 (Figure 3), after the end of photodynamic therapy, the wound was washed again with normal saline, the scalp was turned over to its original position, a negative pressure drainage tube was placed, and local intermittent sutures were fixed.
case_images: Three months after surgery combined with 5-aminolevulinic acid photodynamic therapy treatment.
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case_images: Three months after the operation, the patient's abscess and nodules improved significantly (Figure 4), and he was very satisfied with the treatment results.