RESUMO
INTRODUCTION: Pleomorphic hyalinizing angiectatic tumor (PHAT) is a rare low-grade malignant mesenchymal neoplasm. It commonly occurs in the limbs and trunk, with limited occurrences in the head and neck region. Only five cases of PHAT occurring in the head and neck have been reported in the literature to date. The etiology of PHAT remains unclear. We described a case of nasal cavity PHAT following CARE guidelines. CASE SUMMARY: A 32-year-old male with PHAT originating in the nasal cavity recurred after two surgeries. Adjuvant radiotherapy was performed after the third surgery. The patient has been regularly followed up for 36months, and no tumor recurrence or metastasis has been observed. DISCUSSION: PHAT is a rare soft tissue tumor known for its local aggressiveness. Because of a high risk of recurrence, extensive resection should be implemented, possibly completed by radiotherapy if resection cannot be complete because of proximity to at-risk structures.
RESUMO
Mucinous tumors of the ovary are incidentally associated with ovarian sarcoma. Several cases of sarcoma-like mural nodules in ovarian mucinous tumors have been described previously, but only two well-documented cases of true sarcoma were reported. The purpose of this article is to report a case of sarcoma occurring in ovarian mucinous neoplasm, which differs histologically from the two cases described earlier. This case is the first of its kind with immunohistochemical characterization.
