Dr. William Carlos Nahas – Urologist in São Paulo, Brazil

Dr. William Carlos Nahas is a highly experienced urologist in São Paulo, Brazil, associated with Hospital Sírio-Libanês and the University of São Paulo. He has built a long academic and clinical career in urology, with particular interests in kidney transplantation, urologic oncology, and urinary stones. The official Hospital Sírio-Libanês profile identifies him as a urologist and lists him as coordinator of the hospital's urology team.

Dr. Nahas graduated from the University of São Paulo in 1978 and subsequently specialized in urology. He obtained a doctorate in Urology in 1993 and achieved livre-docência at USP in 1998. His professional career has combined patient care, surgery, academic medicine, teaching, research, and leadership in urology.

Specialization in Urology

Urology covers diseases of the urinary system and male reproductive system. Depending on the patient's condition, urological care may involve medical treatment, endoscopic procedures, minimally invasive surgery, conventional surgery, cancer treatment, transplantation, or long-term monitoring.

Dr. Nahas's official profile identifies renal transplantation, oncology, and urinary stones among his main areas of interest. These areas encompass some of the most complex aspects of modern urological practice.

Kidney Transplantation

One of Dr. Nahas's major professional areas is kidney transplantation. He is identified by Hospital Sírio-Libanês as responsible for the surgical sector of the Kidney Transplant Unit at Hospital das Clínicas da USP.

Kidney transplantation is a complex multidisciplinary process involving urologists, transplant surgeons, nephrologists, anesthesiologists, immunology specialists, nurses, and other professionals. Patient assessment includes determining transplant suitability, surgical planning, donor-recipient considerations, and long-term follow-up.

Dr. Nahas's involvement in kidney transplantation reflects his experience in complex urological surgery and transplant medicine.

Urologic Oncology

Dr. Nahas also has a professional interest in urologic oncology, which encompasses cancers affecting the urinary and male reproductive systems. These may include kidney, bladder, prostate, testicular, and other urological cancers.

The Hospital Sírio-Libanês Urology Center provides care across a broad range of urological conditions, including prostate, bladder, kidney, testicular, and other diseases.

Cancer treatment may require collaboration between urologists, clinical oncologists, radiation oncologists, radiologists, pathologists, and other specialists. Surgical treatment is selected according to the patient's diagnosis, stage, anatomy, overall health, and treatment plan.

Urinary Stones and Urological Conditions

Another area of Dr. Nahas's professional interest is urinary stone disease. Kidney and urinary stones can cause pain, obstruction, infection, or other complications and may require medication, observation, endoscopic treatment, lithotripsy, or surgery depending on the size, location, and clinical circumstances.

The Sírio-Libanês Urology Center lists urinary calculi among its areas of care and provides specialist evaluation for a broad range of urinary tract conditions.

Academic Career and University of São Paulo

Dr. William Carlos Nahas has a substantial academic connection with the University of São Paulo. His official hospital profile records his medical graduation from USP, doctorate in Urology, and livre-docência.

A recent Hospital Sírio-Libanês publication describes him as a professor of Surgery at USP and highlights his professional trajectory across healthcare, teaching, management, and academic medicine.

This academic background is particularly relevant in a specialty such as urology, where surgical techniques, transplantation, oncology, endoscopic procedures, and minimally invasive approaches continue to evolve.

International Professional Recognition

Hospital Sírio-Libanês lists Dr. Nahas as an honorary member of several international urological organizations, including the American Urological Association, as well as urological associations in Chile and Argentina.

Such professional affiliations reflect his long-standing involvement in the broader urological community and international exchange of medical knowledge.

Long-Standing Association with Sírio-Libanês

Dr. Nahas has a particularly long relationship with Hospital Sírio-Libanês. The hospital's official profile lists him as a member of its clinical staff since 1977.

The hospital's current Urology Center lists him as its coordinator, alongside a multidisciplinary team of urologists.

International Patients

For international patients considering urological treatment in Brazil, Dr. Nahas's experience in kidney transplantation, urologic oncology, and urinary stone management may be relevant when seeking specialized assessment.

Hospital Sírio-Libanês maintains an International Patient Center and provides access to advanced technology, specialized teams, and multidisciplinary medical services.

Patients traveling internationally for treatment should provide previous medical records, imaging, laboratory results, pathology reports, and treatment history where available so the medical team can conduct an appropriate individual evaluation.

Key Areas of Expertise

• Urology

• Kidney Transplantation

• Urologic Oncology

• Urinary Stones

• Urological Surgery

• Renal Transplant Surgery

• Academic Urology

• Complex Urological Care

• Medical Education and Research

With more than four decades of professional experience, advanced academic qualifications, long-standing involvement with Hospital Sírio-Libanês, and expertise in kidney transplantation, urologic oncology, and urinary stones, Dr. William Carlos Nahas is an established urologist in São Paulo, Brazil.