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Primary adenoid cystic carcinoma (PACC) of the skin is a rare tumor with fewer than 70 cases studied in detail in the English literature. This type of tumor shows a prolonged course and a growth pattern usually manifested by multiple local recurrences and has a low potential for distant metastases. The most important modality for primary treatment is surgical resection followed by radiotherapy. We report a woman aged 43 years at the time of diagnosis, who presented with a slow-growing nodule in the right axilla without lymph node enlargement. A wide local excision was performed, and the histology revealed an adenoid cystic carcinoma. During the next 24 years, another four local recurrences were excised (the last one in 2015) and confirmed histologically to be adenoid cystic carcinoma. The patient was given 44 Gy of radiotherapy after the second surgery in 1996. PACC of the skin is a rare tumor with insufficient data concerning the efficacy of the surgical technique and chemotherapy and radiotherapy treatment, even more so in the case of multiple recurrences. After the last recurrence, the patient was offered an active follow-up based on the long tumor-free intervals in the past and because the site of the primary tumor allowed further surgical excisions in future recurrences.

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the effectiveness of early vaccination with T-dependent vaccines in this category of patients with immunosuppression. Dendritic cells (DC1 and DC2) are restored in parallel by the 30th day from auto-HSCT (Kruskal-Wallis test 25.78; P <0.001 for DC-1 cells and Kruskal-Wallis test 11,17; P <0.025, respectively), what confirms the basis for the early vaccination with conjugated pneumococcal vaccines in this category of patients. Summary/Conclusion:The obtained data allows planning the introduction of the first dose of the conjugated pneumococcal vaccine 60 days after autologous HSCT, with the perspective of introducing an individualized vaccination calendar based on immunological parameters. It is also necessary to further implement immunization programs for immunocompromised patients, especially in hematology and cancer setting with the participation of a multidisciplinary team of specialists.