Multiple recurrent follicular dendritic cell sarcoma: A case report

Tumors of the follicular dendritic cells (FDC-Sarcoma) represent a rare entity with only about 200 cases reported worldwide. The majority (60%) of cases arise primarily in cervical, abdominal or axillar lymph nodes, but extra nodal origin from secondary lymphatic tissue like the tonsils, Waldeyer's ring or MALT is also common (40%). The current report presents a characteristic course of a cervical FDC-Sarcoma, with its challenges in establishing the initial diagnosis and the struggle for therapeutic options. The FDC-Sarcoma presented recurrently for four times. Three different university hospitals in Germany were involved in the patients' treatment. Due to the patients' refusal, no adjuvant therapy was applied. In the end, a neck dissection was performed. The patient was closely followed up and has been recurrence-free for 10 years. This case suggests operative resection in combination with a neck dissection as a curative therapy for FDC-Sarcoma of the head and neck.

[Application of adjacent micro flap in the repair of skin defect in head and face]

Objective:The aim of this study is to sum up the different surgical repair methods and techniques for the skin defect of head and face.Method:A retrospective study on 97 cases of the face and head skin defect caused by trauma and tumor resection in nearly five years, including 37 cases on nasal, 21 cases on cheek, 9 cases on frontal, 13 cases on temporal, and 17 cases on ear. After resecting skin lesion in security boundary, skin defect were repaired by transposition adjacent flap, zone vascular pedicle flap, myocutaneous flap and the mucosal flap.Result:Seventy-one cases of the postoperative flap healed and stitches discharged in a week; 24 cases of flap edge small necrosis in small, one flap occurred most necrosis, and one skin flap occurred infection and necrosis.Conclusion:Facial skin defect can be repaired primarily by various types of micro adjacent flap. Flap survival is closely related to surgical techniques and postoperative treatment. Retroauricular groove flap has been widely used to repair skin defect of multiple regions for ear.