Resumen

DAMIAN-MUCHA, Milagros et al. Urinary chromatic duality in an elderly adult with advanced bladder cancer: partial manifestation of purple urinary bag syndrome. Rev. virtual Soc. Parag. Med. Int. [online]. 2025, vol.12, n.1, e12142518.  Epub 24-Ago-2025. ISSN 2312-3893.  https://doi.org/10.18004/rvspmi/2312-3893/2025.e12142518.

Purple urinary bag syndrome (PUBS) is a rare condition associated with chronic urinary tract infections in patients who use catheters, particularly older adults. We present the case of a 79-year-old woman with advanced bladder cancer and double urinary diversion (Bricker-type urostomy and right nephrostomy), who developed PUBS exclusively in the urostomy, showing a striking urinary chromatic duality. This observation suggests a predominant pathophysiological role of the bladder reservoir, influenced by the local microbiome, urinary pH, collection material, and exposure to oxygen. Urine culture isolated Escherichia coli, with a favorable response to ceftriaxone. This case broadens the understanding of PUBS from a geriatric, oncological, and microbiological perspective and proposes an in vivo model for studying the local factors that determine its expression. Recognizing this condition in palliative care allows for proportionate interventions, avoiding unnecessary treatments and prioritizing the comfort of the frail patient.

Palabras clave : urine; cystostomy; urinary bladder neoplasms; older adult..

        · resumen en Español     · texto en Español     · Español ( pdf )