[Pulmonary tumorlet associated with second neoplasia]. / Asociación de tumorlet pulmonar con segundas neoplasias.

Tumorlets are pulmonary neuroendocrine tumors smaller than 0.5 cm. They are benign and usually asymptomatic. Their diagnosis is important so as to differentiate them from other neuroendocrine pathologies that require therapeutic intervention. We report a case of such entity and a discussion on the subject that can contribute to highlight the importance of diagnosing this entity.

Asociación de tumorlet pulmonar con segundas neoplasias / Pulmonary tumorlet associated with second neoplasia

Los tumorlets son tumores neuroendocrinos pulmonares menores a 0.5 cm, de evolución benigna y habitualmente asintomáticos. Su diagnóstico es importante para realizar la diferenciación con otras afecciones neuroendocrinas y enfermedad metastásica de otro origen, que requerirán una intervención terapéutica. Se presenta un caso de dicha entidad asociada a otros tumores.

Tumorlets are pulmonary neuroendocrine tumors smaller than 0.5 cm. They are benign and usually asymptomatic. Their diagnosis is important so as to differentiate them from other neuroendocrine pathologies that require therapeutic intervention. We report a case of such entity and a discussion on the subject that can contribute to highlight the importance of diagnosing this entity.

Malignant fibrous histiocytoma in a patient with history of treated retinoblastoma.

Retinoblastoma is one of the most important childhood tumors with genetic implications and necessity for family counseling and long term follow up. We are presenting a 22 year-old Saudi male with history of bilateral retinoblastoma, who was initially treated by enucleation of his left eye. The histopathology showed a moderately differentiated tumor with vitreous seeding and he received chemotherapy in addition to radiotherapy to his right eye. He presented 20 years later with a right orbital tumor, frozen globe and proptosis. The excisional biopsy of his orbital mass revealed a spindle cell sarcoma with features of malignant fibrous histiocytoma. His clinical and radiological findings are presented together with the histopathologic features of his orbital tumor and brief review of secondary tumors in retinoblastoma patients.