Background Clinical assessments and uniplanar images in temporomandibular disorders are not always entirely reliable. This predicament is especially important when clinicians need to determine the nature of temporomandibular joint disease, particularly when clinical features are not helpful in determining the diagnosis. Clinical presentation A 63-year-old female patient presented with mild pain in her right TMJ. During routine imaging exams, a destructive monoarticular arthritis was noticed, producing multiple erosions of the mandibular and temporal condyles. In addition, attrition of the ceiling of the glenoid fossa was observed, generating a communication with the endocranium. Only the presumptive biological behavior revealed on TMJ imaging and the appearance of the psoriatic plaques later during follow-up helped the authors to narrow the differential diagnosis. Conclusion The clinical case presented illustrates the difficulties in diagnosing an erosive, seronegative TMJ destruction, suggestive of a systemic arthritis.
RESUMEN: El linfoma extranodal de células T/NK es una neoplasia maligna agresiva que se caracteriza por una destrucción de estructuras de la línea media de la cara como paladar y fosa nasal. Presentamos el caso de un paciente de sexo masculino, 48 años de edad, consumidor de cocaína, que consulta en la Facultad de Odontología de la Universidad de Chile en Septiembre del 2015 por síntomas de disfagia, rinorrea y que presenta al examen clínico un tumor ulcerado que compromete paladar duro y blando, de un mes de evolución. Se confirma diagnóstico de linfoma de células T/NK con una batería de pruebas inmunohistoquímicas. Esta patología, aunque infrecuente, siempre debe ser considerada dentro los diagnósticos diferenciales en tumores ulcerados en esta localización.
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