Most Miss Streamlined Neck Mass Dx Path

Same-visit biopsy and fewer empiric workup steps were linked to faster pathologic diagnosis in a retrospective analysis.

By
Andrea Surnit
June 19, 2026
5 min

Conexiant

Overview

A retrospective study published in The Permanente Journal found that most patients diagnosed with malignant neck masses did not follow a streamlined diagnostic pathway, leading to longer diagnostic intervals. Key factors included empiric antibiotic use, delayed biopsies, and the need for multiple biopsies. The study reviewed electronic consult records for 4,103 adults referred for evaluation of neck or salivary gland masses, identifying 205 patients with newly diagnosed malignancy.

Background

The timely diagnosis of malignant neck masses is critical for effective treatment and improved patient outcomes. Delays in diagnosis can result from various factors, including inappropriate initial management strategies such as empiric antibiotic use and the complexity of distinguishing benign from malignant conditions. Understanding these delays can help refine diagnostic pathways.

Data Highlights

Finding	Value
Median interval from primary care evaluation to pathologic diagnosis	21 days
Percentage of patients diagnosed with malignancy	5%
Median time to diagnosis with antibiotics	41 days
Median time to diagnosis without antibiotics	20 days
Percentage of patients requiring multiple biopsies	42%
Diagnostic success rate for fine-needle aspiration	56%
Diagnostic success rate for core needle biopsy	74%
Diagnostic success rate for excisional biopsy	100%

Key Findings

Only 18% of patients underwent the streamlined diagnostic pathway defined as specialist referral without empiric antibiotics or primary care physician–ordered imaging, followed by diagnostic biopsy at the initial visit.
Empiric antibiotic use was associated with longer diagnostic intervals.
25% of patients had diagnostic intervals of at least 38 days.
58% of patients had biopsy performed at the initial specialist visit.
Core needle biopsy had a higher diagnostic yield than fine-needle aspiration.
Point-of-care ultrasound was used in only 18% of needle biopsies.

Clinical Implications

The findings suggest that adherence to established guidelines, including avoiding empiric antibiotics and optimizing the timing of biopsies, may improve diagnostic efficiency. Clinicians should consider the implications of initial management strategies on the overall diagnostic timeline.