Sistema Internacional Yokohama para el informe de la citología mamaria. Academia Internacional de Citología

Fine needle aspiration biopsy cytology is part of the diagnostic triad in the evaluation of breast pathology, along with clinical and mammography or ultrasound findings. The Yokohama international system of the International Agency for Cytology has been proposed to report fine needle puncture-aspiration biopsy breast cytology, through 5 diagnostic categories: Inadequate/insufficient, benign, atypical, suspicious for malignancy and malignant, including in each of these definitions, key cytological diagnostic criteria and suggestions for clinical management. The objective of this article was to know the guidelines of this new breast cytological classification system for its implementation in this region. Fine needle puncture-aspiration biopsy is a precise and effective method to diagnose different breast lesions, which requires an adequate cell sample and a precise cytomorphological interpretation. The application of standardized Yokohama system will allow to improve the evaluation, diagnosis and clinical management of the breast pathology. Keywords: Breast cytology. Fine-needle aspiration biopsy (FNAB). Reporting system Yokohama.

Cervical thyroid remnant consistent with papillary carcinoma as an incidental finding in a patient with benign total thyroidectomy ten years prior

Background: Differential diagnosis of a cervical lesion corresponding with papillary thyroid carcinoma (PTC) after benign total thyroidectomy can be a real challenge. Methods: A cervical thyroid remnant compatible with papillary carcinoma was incidentally found ten years after total thyroidectomy for a non-functional multinodular goitre. Histological analysis of fine needle puncture aspiration (FNPA) was highly suggestive for PTC. Surgical excision of the cervical lesion was performed. Specimen study demonstrated a classic variant of PTC contacting a peripheral margin, applying ablative treatment with radioactive iodine postoperatively. Results: The patient did not present signs of recurrence during follow-up. Small thyroid remnants after benign thyroidectomy are often left behind, although their risk of malignancy is exceptional. Conclusions: It is important to individualize therapeutic approach when facing this rare entity. We decided to treat the patient by removing the lesion followed by ablation therapy with successful results. PTC: Papillary thyroid carcinoma FNPA: Fine needle puncture aspiration