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Updated: Jul 10, 2026

Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer

Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer

Published on: June 9, 2023

[Papillary thyroid microcarcinoma. Long-term outcome in 587 cases compared with published data].

M R Pelizzo¹, I Merante Boschin, A Toniato

¹Divisione di Patologia Speciale Chirurgica, Dipartimento di Scienze Mediche e Chirurgiche , Università di Padova, Istituto Oncologico Veneto-IRCCS, Padova, Italy. mariarosa.pelizzo@unipd.it

Minerva Chirurgica

|October 20, 2007

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Papillary thyroid microcarcinoma (PTMC) less than 5 mm without lymph node metastasis may be treated with partial thyroidectomy. Occult PTMC with metastasis requires treatment similar to larger tumors, as it has a poorer prognosis.

Area of Science:

Endocrinology
Oncology
Surgical Pathology

Background:

Papillary thyroid microcarcinoma (PTMC), defined as a tumor ≤1 cm, is the most common thyroid malignancy.
Distinguishing between PTMC subtypes is crucial for determining appropriate treatment strategies and predicting patient outcomes.

Purpose of the Study:

To evaluate the long-term outcomes of surgical treatment for PTMC.
To differentiate therapy options based on disease progression risk by comparing institutional data with existing literature.

Main Methods:

Analysis of 587 PTMC cases surgically treated between 1990 and 2006.
Patients were categorized by PTMC diameter (<5 mm vs. ≥5 mm) and type (incidental, diagnosed, occult with metastasis).
Prognostic factors including patient demographics, surgical extent, lymph node status, and adjuvant therapy were compared against tumor size.

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Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer

Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer

Published on: June 9, 2023

Main Results:

Significant differences were observed in PTMC type, thyroidectomy extent, lymph node metastasis, 131-I therapy, survival, and recurrence rates between tumor size groups.
Excluding occult PTMC with metastasis, patients with PTMC <5 mm showed no recurrence after treatment.
No reoperations were needed for PTMC <5 mm without metastasis.

Conclusions:

The term "microcarcinoma" may be misleading due to differing behaviors of PTMC subtypes (incidental, diagnosed, occult with metastasis).
Partial thyroidectomy is a suitable treatment for PTMC <5 mm without lymph node involvement.
Occult PTMC with metastasis warrants aggressive management comparable to larger thyroid tumors due to its significant prognostic implications.