Hipoglicemia inducida por tumor fibroso solitario pulmonar: síndrome de Doege-Potter / Hypoglycemia induced by a solitary fibrous tumor of the lung or Doege-Potter syndrome: report of one case

We report the case of a 75-year-old man who was admitted to the hospital with symptoms of severe hypoglycemia. He had a history of solitary fibrous tumor diagnosed by Pathology after its complete surgical resection eight years before. The laboratory examination reported hypoglycemia with inhibited Insulin secretion. A computed tomography of the thorax revealed a large solid heterogeneous mass in the left hemithorax. Solitary fibrous tumor is a rare neoplasm. The association of solitary fibrous tumor and paraneoplastic hypoglycemia is known as Doege-Potter syndrome and occurs in less than 5% of all solitary fibrous tumors.

Tumor fibroso solitario de la pleura: análisis de 41 casos / Solitary fibrous tumor of the pleura: analysis about 41 cases

Solitary fibrous tumor of the pleura (TFSP) is an uncommon and mostly benign neoplasm. It grows slowly and presents with scant symptoms. Recurrence after surgical excision has been described. The aim of this report is to show our experience in managing this disease. Clinical as well as radiological, surgical, histopathological and follow-up data were analyzed in a clinical series. Forty one cases of TFSP that underwent surgery at our institution between 1991 and 2004 were retrospectively analyzed; 27 were females and 14 males with a median age of 60.4 years old; 24.4% of the cases were asymptomatic. All tumors were surgically excised, in average they weighed 945 g and 36.5% of the lesions showed a pedicle. Most of the lesions were originated in the visceral pleura. Surgical morbidity was 12.1% and no mortality was recorded. Three tumor recurred. TFSP is usually a benign neoplasm but it can recur. Complete surgical excision is the treatment of choice of primary and recurrent tumors.

Introducción: El tumor fibroso solitario de la pleura (TFSP) es una neoplasia infrecuente, considerada benigna, de crecimiento lento y poco sintomática pero que puede recidivar tras la resección quirúrgica. El objetivo de este estudio es mostrar la experiencia de nuestro centro con el manejo de estos tumores. Pacientes y Método: Análisis retrospectivo de 41 pacientes con TFSP intervenidos en nuestro Servicio entre 1991 y 2004. Se analizan datos clínicos, radiológicos, quirúrgicos, morbimortalidad, recurrencia y seguimiento. Resultados: De los 41 pacientes con TFSP resecados, 27 eran mujeres y 14 hombres. Edad media 60,4 años. 24,4% de los pacientes fueron asintomáticos. Todos los pacientes fueron intervenidos quirúrgicamente y se realizó estudio histopatológico en todas las piezas. El peso promedio de los tumores fue de 954 g y 36,5% eran tumores pediculados, el resto de base ancha. La mayoría (75,6%) se originaban de la pleura visceral. No hubo mortalidad operatoria y la morbilidad alcanzó el 12,1%. Tres tumores recidivaron. Conclusiones: El TFSP es una neoplasia rara generalmente benigna, pero que puede recidivar. El tratamiento es la resección quirúrgica completa y las recidivas deben ser resecadas nuevamente.