Faculty Bibliography

OBJECTIVES/HYPOTHESIS: The successful harvest and transplant of a fibular flap depends on many factors, including healthy inflow and outflow systems. A contraindication to harvesting a fibular flap is disease of the lower extremity arterial system; therefore, preoperative evaluation of the arterial system is routine. Preoperative evaluation of the venous system is not routine, unless there is clinical suspicion of venous disease. METHODS: Retrospective chart review. RESULTS: Two cases of occult deep venous thrombosis (DVT) were encountered intraoperatively resulting in nontransplantable flaps. CONCLUSIONS: This finding represents a serious concern, and we believe that venous imaging should be considered in patients with significant risk factors for harboring an occult DVT. Laryngoscope, 2009.

BACKGROUND: In the past, surgeons believed that in order to eradicate regional disease, a radical or modified radical neck dissection was necessary. An evolution in surgical principles and the popularization of primary chemoradiation has raised the questions regarding the role of neck dissection and the extent of neck dissection following therapy. The aim of this study was to determine the efficacy of selective neck dissection (SND) for patients with N2 or N3 disease following treatment with primary radiation therapy or chemoradiation. METHODS: A retrospective review of 58 patients with stage III or IV head and neck squamous cell carcinoma was conducted. The primary sites included base of tongue (n = 15), hypopharynx (n = 12), tonsil (n = 16), larynx (n = 11), and unknown primary (n = 4). Definitive treatment consisted of either concomitant chemoradiation (67.2%) or external beam radiation therapy (32.8%). In the monotherapy group, all patients received a total curative dose of 66 to 72 Gy in once-daily fractions of 180 to 200 cGy. The combined chemoradiation group received a similar radiation schedule and a 4-day continuous infusion of cisplatin (20 mg/m(2)/day) and 5-fluorouracil (1000 mg/m(2)/day). A planned SND of levels II to IV was performed on all the patients 3 to 6 weeks after completion of definitive medical therapy. RESULTS: Seventy neck dissections were performed on 58 patients with advanced neck disease following radiation or chemoradiation. The median time of follow-up was 34 months (range, 9-71 months) following the neck dissection. Pathologically, 22.4% (13/58) of the patients had viable tumor cells identified in the neck dissection specimen. Seventy-two percent of the patients are currently alive, and 28% died as a result of distant disease, local or regional recurrence, or other causes. Of patients who died from distant disease, 11% had pathological evidence of residual tumor cells identified in the neck dissection specimen. Of patients who died from local or regional disease, 50% had pathological evidence of residual tumor cells identified in the neck dissection specimen. CONCLUSION: The rate of regional recurrence following SND is similar to reported rates following modified/radical neck dissection. This suggests that SND provides an appropriate surgical option for advanced neck disease in select patients following adjuvant therapy.

BACKGROUND: The term "collision tumor" refers to the coexistence of two histologically distinct malignant tumors within the same mass. Collision tumors involving the thyroid gland and/or neck region are especially uncommon, with most reported cases involving papillary thyroid carcinoma in coexistence with medullary thyroid carcinoma, follicular carcinoma, and metastatic disease, the latter including a rare occurrence of metastatic liposarcoma and thyroid papillary carcinoma. A collision tumor of papillary thyroid carcinoma and squamous cell carcinoma primary to the thyroid has also been reported. SUMMARY: We now report a collision tumor comprised of well-differentiated papillary thyroid carcinoma and squamous cell carcinoma that originated as a laryngeal primary tumor. Histologically, the thyroid mass is consisted of well-differentiated papillary thyroid carcinoma. The laryngeal mass consisted of in situ and invasive squamous cell carcinoma. Both cancers were extensively infiltrative into the soft tissues of the neck and paraglottic space where the histologically distinct tumor types approximated one another but were not admixed with each other. Additionally, cervical lymph nodes showed metastatic carcinoma, including independent cervical lymph nodes with metastatic squamous cell carcinoma only, cervical lymph nodes with metastatic papillary thyroid carcinoma only, and cervical lymph nodes with foci of both papillary thyroid carcinoma and squamous cell carcinoma. CONCLUSION: As best we can determine this is the first publication of a collision tumor comprised of a well-differentiated papillary thyroid carcinoma and squamous cell carcinoma that originated as a laryngeal primary tumor. For any patient with a thyroid mass that appears to be in continuity with a laryngeal mass, more commonly one would find invasive thyroid cancer, but one must consider a collision tumor in the differential diagnosis.

BACKGROUND: In the neck, the recipient vessels most frequently used for microsurgical reconstruction are compromised by prior surgery and radiation. METHODS: We conducted a retrospective chart review of all patients who underwent microvascular reconstruction between July 2001 and June 2005. Donor vessels, vein grafts, and flap survival were examined. RESULTS: Fourteen of 197 patients (7%) were identified with a vessel-depleted neck. All patients had undergone a prior neck dissection and radiation (100%) or chemoradiation (42%). Free flap revascularization was achieved using the transverse cervical artery with a vein graft and a cephalic vein (4 patients), thoracoacromial artery and cephalic vein (3 patients), internal mammary artery and vein (3 patients), and inferior thyroid artery and cephalic vein (1 case). In 3 patients, the reverse flow thoracodorsal artery and cephalic vein were used to vascularize the scapular flap. CONCLUSION: The cephalic vein, transverse cervical, internal mammary, and thoracoacromial vessels represent reliable alternatives in the vessel-depleted neck.

The treatment of laryngeal cancer has evolved through several phases, starting with wide extirpative surgical resection, and evolving through an era of conservation surgery and, finally, planned treatment using modalities of irradiation, chemotherapy and surgery in various combinations. Attempts to extirpate laryngeal cancer date to the nineteenth century, but only by the mid-twentieth century did advances in anesthesia, blood transfusion and antibiotics, make this surgery safe and reliable. Techniques of partial laryngectomy by external approach developed in the second half of the twentieth century, and endoscopic use of the laser refined the concept and provided a new paradigm for surgical treatment, particularly for early lesions. During most of this era, radiation was employed as an alternative method of treatment, with surgery reserved for salvage of radiation failure. By the last decade of the twentieth century, and to the present time, the value of combined modality therapy, using planned combinations of irradiation, chemotherapy and surgery became the standard of care for advanced laryngeal cancer, permitting maximal laryngeal preservation with the highest attainable cure rates.

Silent sinus syndrome is a known clinical entity caused by negative sinus pressure from acquired obstruction of the maxillary sinus ostium with resulting enophthalmos and hypoglobus. We present a case in which, after septorhinoplasty, a patient developed progressive enophthalmos and hypoglobus. His evaluation was consistent with silent sinus syndrome. This case illustrates the complex reconstructive challenges of repairing an orbit in the setting of fistulization of the orbit with the maxillary sinus cavity. In particular, we highlight the inferior fornyx transconjunctival approach with simultaneous intranasal endoscopic maxillary sinus aeration.

OBJECTIVE: To elucidate the advantages and disadvantages of the anterolateral thigh flap (ALTF) for pharyngoesophageal reconstruction, we assessed this donor site and compared it with the radial forearm free flap (RFFF). DESIGN: Retrospective medical chart review. SETTING: Tertiary care referral center. SUBJECTS: Twenty-three consecutive patients who underwent pharyngoesophageal reconstruction using an ALTF or RFFF. INTERVENTION: Pharyngoesophageal reconstruction. MAIN OUTCOME MEASURES: Patient medical charts were assessed for age, histopathological diagnosis, preoperative treatment, surgical defect, tracheoesophageal speech, flap survival, donor and recipient site complications, and swallowing function. RESULTS: Twenty-three patients (12 who underwent reconstruction with ALTF and 11 with RFFF) were included in the study. Both donor sites provided adequate tissue for pharyngoesophageal reconstruction; however, the RFFF group demonstrated a higher rate of postoperative donor site complications including skin graft loss and extremity edema and stiffness. Postoperatively, the ALTF group demonstrated no gait disturbance and no donor site complications. All 23 patients in both groups were able to tolerate an unrestricted oral diet; however, 3 patients who underwent reconstruction with an RFFF experienced cervical esophageal stenosis, whereas only 1 patient with an ALTF experienced stenosis. CONCLUSION: In this preliminary series, the ALTF represents an excellent source of tissue for pharyngoesophageal reconstruction and is associated with a lower rate of donor site morbidity and anastomotic stenosis compared with the RFFF donor site.