Diagnosis and surgical treatment of sinonasal phosphaturic mesenchymal tumor / 中华耳鼻咽喉头颈外科杂志

Objective: To investigate the diagnosis and surgical treatment of sinonasal phosphaturic mesenchymal tumor (PMT). Methods: The medical records of nine patients who had been diagnosed as sinonasal PMT in Department of Otorhinolaryngology Head and Neck Surgery, Shanghai JiaoTong University Affiliated Sixth People's Hospital between January 2015 and May 2020 were collected, including 4 males and 5 females, ranging from 36 to 59 years. The patient's previous history, clinical manifestations, imaging findings, laboratory results, surgical procedure, pathological results and postoperative follow-up data were analyzed by descriptive statistical analysis. Results: All patients presented hypophosphatemia and tumor-induced osteomalacia (TIO) with a disease course of 1 to 19 years. The imaging examination and intraoperative findings identified two cases with peripheral tissue infiltration, two cases with contralateral nasal cavity invasion, and one case with intracranial invasion. Five patients underwent unilateral endoscopic resection while two patients underwent bilateral endoscopic resection, and the remaining two patients underwent unilateral transorbital ethmoid artery ligation plus endoscopic tumor resection and endoscopic combined with transfrontal tumor resection (n=1 each). Expect for one case developed recurrence and intracranial involvement, the other patients achieved clinical remission and no recurrence was observed during the six-month follow-up. Conclusions: The diagnosis of sinonasal PMT needs combination of clinical manifestation, imaging, and pathological findings. Complete surgical excision and long-term postoperative follow-up are imperative.

Perfurador baseado em transposição de retalho estenocelidomastoide para defeitos da região posterior do pescoço: uma nova alternativa / Perforator based sternocleidomastoid transposition flap for nape of neck defect: a novel option

Retalhos do músculo esternocleidomastoideo têm sido descritos na literatura para reconstrução dos defeitos da cavidade oral e tratamento da síndrome de Frey. Apesar de largamente estudado, esses retalhos não são utilizados com frequência para reconstruções na região de cabeça e pescoço devido limitações como tamanho reduzido, camadas inseguras, contorno da deformidade no pescoço e questões de segurança oncológica. Relata-se uso de perfurador baseado em transposição de retalho para defeito na região da posterior do pescoço, seguido por excisão de sarcoma de partes moles. Trata-se de alternativa válida para procedimentos de reconstrução como retalhos regionais de pedículo ou transferência de tecido livre em um grupo apropriado de pacientes.

Sternocleidomastoid musculocutaneous flaps have been described in the literature for reconstruction of oral cavity defects and treatment of Frey's syndrome. Although widely studied, it is not used routinely in head and neck reconstruction due to limitations like small size, unreliable skin paddle, contour deformity in the neck and the question of oncologic safety. We report use of perforator based musculocutaneous transposition flap for defect over nape of the neck, followed by excision of a soft tissue sarcoma. This constitutes a valid alternative to other reconstructive procedures like pedicled regional flaps or free tissue transfer in a suitable group of patients.