[Secondary amyloidosis of the bladder and massive hematuria]. / Amiloidosis vesical secundaria y hematuria masiva.

OBJECTIVE: To report four additional cases of secondary amyloidosis of the bladder, an extremely rare condition, as shown by the cases reported in the literature. MATERIALS AND METHODS: Four clinical cases are reported, all of them occurring as hematuria, which was massive and fulminant and resulted in death in three patients. RESULTS: Secondary amyloidosis of the bladder is of the AA type, which is more common in females and mainly secondary to rheumatoid arthritis, but also to ankylosing spondylitis and long-standing chronic inflammatory conditions. Hematuria is the main and virtually only symptom. A pathological and immunohistochemical study confirmed diagnosis. All three patients who experienced massive, fatal hematuria had an intercurrent condition requiring urethral catheterization, which was the triggering factor. CONCLUSIONS: Despite its rarity, as shown by the few cases reported, secondary amyloidosis of the bladder should be considered in patients already diagnosed with systemic amyloidosis and/or the conditions reported who require simple urethral catheterization.

Amiloidosis vesical secundaria y hematuria masiva / Secondary amyloidosis of the bladder and massive hematuria

Objetivo: Dar a conocer cuatro nuevos casos de amiloidosis vesical secundaria, cuya manifestación clínica es extraordinariamente rara, si atendemos a los escasos casos publicados que no llegan a la treintena. Material y métodos: Describimos los cuatro casos clínicos, manifestados todos ellos por hematuria, siendo en tres masiva y fulminante, con evolución fatal. Resultados: La amiloidosis vesical secundaria corresponde al tipo AA, más frecuente en mujeres y secundaria sobre todo a artritis reumatoide, pero también a espondilitis anquilopoyética y procesos inflamatorios crónicos de larga evolución. La hematuria es el síntoma fundamental, prácticamente único. El estudio patológico e inmunohistoquímico confirma el diagnóstico. Se da la circunstancia de que los tres casos de hematuria masiva y fatal presentaron una patología intercurrente que precisó practicar un sondaje uretral, siendo este el desencadenante. Conclusiones: A pesar de su rareza, confirmada por los pocos casos publicados, habrá que pensar en ella ante pacientes ya diagnosticados de amiloidosis sistémica y/o con las patologías descritas, que precisen un simple sondaje uretral(AU)

Objective: To report four additional cases of secondary amyloidosis of the bladder, an extremely rare condition, as shown by the cases reported in the literature. Materials and methods: Four clinical cases are reported, all of them occurring as hematuria, which was massive and fulminant and resulted in death in three patients. Results: Secondary amyloidosis of the bladder is of the AA type, which is more common in females and mainly secondary to rheumatoid arthritis, but also to ankylosing spondylitis and long-standing chronic inflammatory conditions. Hematuria is the main and virtually only symptom. A pathological and immunohistochemical study confirmed diagnosis. All three patients who experienced massiva, fatal hematuria had an intercurrent condition requiring urethral catheterization, which was the triggering factor. Objective: To report four additional cases of secondary amyloidosis of the bladder, an extremely rare condition, as shown by the cases reported in the literature. Materials and methods: Four clinical cases are reported, all of them occurring as hematuria, which was massive and fulminant and resulted in death in three patients. Results: Secondary amyloidosis of the bladder is of the AA type, which is more common in females and mainly secondary to rheumatoid arthritis, but also to ankylosing spondylitis and long-standing chronic inflammatory conditions. Hematuria is the main and virtually only symptom. A pathological and immunohistochemical study confirmed diagnosis. All three patients who experienced massiva, fatal hematuria had an intercurrent condition requiring urethral catheterization, which was the triggering factor(AU)