Aim:To determine the correlation between the results of thyroid fine-needle aspirations interpreted using the Bethesda system and final histopathological reports for patients at an oncology hospital (OH) and non-oncology hospitals (NOHs).Materials and Methods:A retrospective, cross-sectional, descriptive study was performed to compare the cytology and histopathology results for patients with thyroid nodules in three Colombian hospitals. The final correlation of diagnoses between the two methods is reported. In Colombia, the health system provides the existence of general care hospitals and hospitals specializing in care of patients with cancer.Results:A total of 196 reports were reviewed, of which 53% were from OH and 47% were from NOHs. A greater proportion of category V (37.5%) was diagnosed at the OH, whereas NOHs diagnosed a greater proportion of category II (42.3%). The global correlation between diagnoses made using cytology and histopathology was 93.3% for categories V and VI (based on the final malignant diagnosis) and 86.9% for benign category II. Significant differences between institution types were observed when category IV and V and malignant histopathology were compared (56.3% OH vs. 23.5% NOH; P = 0.05 for category IV, 97.4% OH vs. 82.3% NOH; P = 0.03 for category V), while no significant difference between institution types was observed when category II and final benign diagnosis were compared (P = 0.6).Conclusions:The Bethesda system for thyroid cytology correlates adequately with final histopathological diagnosis in Colombia. Significant differences were identified in the diagnostic correlation for malignant lesions between the OH and NOHs in categories IV and V caused by selection bias of the population.

The use of IHC significantly increases and facilitates the identification of melanocytes in unilateral biopsies. Our IHC counts exceed the averages found in the literature. This finding warrants new studies to verify whether the Colombian population presents higher numbers of melanocytes in the nail matrix than other populations or whether the observed increase is a result of the use of MiTF.

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Los mielolipomas suprarrenales son tumores benignos inusuales de crecimiento lento, compuestos por tejido adiposo maduro y células hematopoyéticas. Se presentan en adultos entre la quinta y la sexta década de la vida y usualmente miden entre 3 y 7 cm. El 70 % de los casos son asintomáticos y hacen parte de los denominados ‘incidentalomas’ de la glándula suprarrenal. El tratamiento puede ser conservador o quirúrgico, dependiendo de los síntomas, el tamaño de la masa y el crecimiento tumoral en estudios consecutivos de imágenes diagnósticas. La suprarrenalectomía laparoscópica es un procedimiento seguro, que tiene una recuperación rápida, no requiere instrumentos, dispositivos o fuentes de energía costosos, y estéticamente es superior a la técnica abierta. Se presenta el caso de un hombre de 63 años con antecedentes de hipertensión arterial sistémica, diabetes mellitus de tipo 2 e hiperlipidemia, quien presentó como hallazgo incidental en imágenes diagnósticas una masa suprarrenal derecha. El examen físico y los estudios paraclínicos descartaron que el tumor fuera funcional. Se practicó suprarrenalectomía derecha laparoscópica sin complicaciones y se diagnosticó un mielolipoma por histopatología.