Sinonasal carcinoma is rare. Most oncology clinics manage only a handful of post-resection cases at any given time. This scarcity has real operational consequences. With few cases, clinics rarely have a dedicated pathway, and the post-resection imaging schedule (spanning two to four years of multiple imaging types) sits in a discharge note instead of a structured system. Small gaps accumulate.
These gaps have real clinical stakes. A multi-institutional study on sinonasal squamous cell carcinoma surveillance found that locoregional recurrence occurs in nearly half of patients, with a mean time to recurrence of 12.1 months and five-year recurrence rates as high as 56%. A patient who leaves surgical follow-up without a confirmed imaging series has no automatic way to know when that 12-month window arrives.
The Recurrence Burden Clinics Are Managing
Five-year overall survival for sinonasal squamous cell carcinoma sits at approximately 50%. A 2025 review of recurrent sinonasal squamous cell carcinoma found that 83.3% of recurrences occur within the first five years, though late recurrences beyond that window have been documented. The recurrence pattern is not evenly distributed. Most events cluster in the first two years, which is precisely the period when post-resection follow-up is most likely to be disorganized.
This puts the scheduling question in perspective. Every week a surveillance scan is delayed past its target date is a week during which a recurrence could be developing undetected. The operational failure is not dramatic. It is a series of small delays - a booking not placed, a referral not followed up, a result not surfaced to the treating oncologist - that add up into meaningful gaps.
What Multi-Modal Surveillance Requires
Current evidence supports combining PET/CT, MRI, CT, and clinical endoscopy in the post-resection surveillance period. Research on PET/CT imaging for sinonasal neoplasms identifies PET/CT as the most sensitive modality in surveillance settings, with sensitivity of 95.2% and specificity of 90.8% in a multi-institutional dataset. MRI adds complementary value, with sensitivity of 72.4% and specificity of 97.1%, particularly for soft-tissue and perineural assessment. CT and clinical endoscopy provide additional coverage.
Each modality routes through a different department. PET/CT requires nuclear medicine scheduling. MRI goes through radiology. Endoscopy is arranged through ENT or head-and-neck surgery. A recommended alternating cadence (PET/CT at three months, MRI at six months, endoscopy throughout) means a single patient generates four to six separate booking events per year, across three departments, for at least two years.
No single department owns the full picture. In clinics without a unified scheduling layer, a coordinator must manually track whether each booking has been made, attended, and reported. This works for one or two patients. It does not scale.
Where Coordination Gaps Form
Post-resection imaging gaps in sinonasal carcinoma care come from predictable sources.
- The handoff gap. When a patient transitions from surgical follow-up to oncology follow-up, the imaging schedule often travels as free text in a discharge summary rather than as a structured appointment series. The receiving clinician may not re-enter the plan into a schedulable format.
- The modality gap. PET/CT, MRI, and endoscopy are booked in separate queues. If one modality appointment is delayed or rescheduled, the others do not automatically adjust. The intended cadence drifts without generating an alert.
- The result gap. Imaging reports that return to a radiology system may not surface automatically to the treating oncologist's worklist. Result review depends on a manual check or a message from radiology staff, both of which can be delayed when teams are busy.
- The reminder gap. Research on an EHR-linked cancer tracking system found that automated due-date queues and reminders significantly improved follow-up timeliness compared to standard manual processes. Clinics without this layer rely on individuals to remember when each scan is due across every active patient simultaneously.
These are not exceptional failures. They are the default state of a multi-department care pathway built for efficiency within each department, not for continuity across them.
The Guideline Gap Adds Operational Uncertainty
The NCCN has historically limited its imaging recommendations to the first six months after treatment. A study examining post-treatment imaging in head and neck cancer found that clinicians broadly do not follow consistent guidelines and instead develop individual or institutional strategies. Variation in protocol does not reflect clinical negligence. It reflects a genuine absence of standardized guidance for a rare disease.
That protocol variation has a direct operational cost. When the surveillance schedule lives in a clinician's personal practice pattern rather than a documented clinic protocol, it cannot be transferred. Staff turnover, leave, or a change in treating oncologist can break continuity without any system-level flag.
A similar dynamic applies in other rare and complex cancers. The article Neoadjuvant-to-Surgery Imaging Gaps in Soft Tissue Sarcoma describes how the transition between treatment phases creates comparable coordination failures when imaging schedules are not encoded as structured data in a shared system.
What Standardized Scheduling Looks Like in Practice
A systematic review of post-treatment surveillance imaging in head and neck cancer identified the absence of standardized protocols as the primary driver of imaging follow-up variation. Clinics that reduce gaps share one common feature: the imaging schedule exists as a data object with defined fields - modality, target date, responsible department, ordering clinician - rather than as a narrative recommendation in a discharge letter.
A well-designed post-resection imaging series for a sinonasal carcinoma patient establishes a treatment timeline at the point of discharge from surgical care. Each imaging event appears as a scheduled item with a due date, an assigned department, and a status field that updates when the scan is attended and the report is received. When an item becomes overdue, it surfaces in the treating oncologist's worklist rather than disappearing into a calendar backlog.
A multi-modal schedule (PET/CT at three months, alternating MRI and clinical endoscopy at six-month intervals, CT at defined points through year two) becomes a visible series rather than a mental checklist. When one appointment is rescheduled, the system flags the gap and the downstream items can be adjusted accordingly.
Imaging reports link directly to the patient timeline. The treating oncologist can review the result in the context of the full surveillance history, not in isolation from a separate reporting inbox. For clinics managing post-resection care across multiple anatomical sites, the article Head and Neck Cancer Surgery-to-Chemo Toxicity Data Gaps covers the related problem of data handoffs at care transitions in the head and neck space.
The Operational Ask Is Modest
Closing post-resection imaging gaps in sinonasal carcinoma does not require a new clinical protocol or a major change to clinical practice. It requires making the imaging schedule visible to every member of the care team, assigning due dates that generate alerts, and linking results back to the patient timeline automatically.
A platform that treats the post-resection period as a structured series of clinical events - rather than a calendar of disconnected appointments - removes most of the coordination work that currently sits invisibly on individual staff. The clinical team's attention stays on the patient. The system tracks whether each scan happened on time.
For context on how this approach applies in another post-surgical setting where timing affects recurrence detection, see Closing MRI Surveillance Gaps After Glioblastoma Resection. Many of the same platform mechanisms transfer directly to sinonasal carcinoma follow-up.
To see this workflow on your clinic data, contact the team about a demo.