Oncology Second Opinion in Guatemala
You have the right to a second opinion. Before deciding.
A cancer diagnosis is one of the most important decisions a person will face. Getting an independent review before starting treatment isn't about distrusting your doctor — it's about making sure the plan is right for your case.
When should you look for an oncology second opinion?
You received a cancer diagnosis and want to confirm the treatment plan before starting
The tumor has no molecular markers and you want to know if testing is missing
Your current treatment isn't giving the expected results
The tumor progressed and you don't know what options remain
You've been offered aggressive chemotherapy and want to confirm it's the right choice
You have doubts about the histological diagnosis or the staging
⚡ Consultations Monday, Tuesday, and Thursday | By appointment only
30%
of oncology second opinions result in a change to diagnosis, stage, or treatment
ASCO · ESMO
up-to-date treatment guidelines for every type of solid tumor
8+
years of experience in medical oncology of solid tumors in Guatemala
Q600
second-opinion consultation with complete case review
A second opinion isn't an act of distrust. It's a clinical tool.
International oncology guidelines — ASCO and ESMO — recommend a second opinion as part of the decision-making process in oncology. Not because doctors make mistakes, but because cancer is complex, subtypes are numerous, and treatment options are constantly evolving.
A second opinion can confirm that the proposed treatment is correct — which brings peace of mind. Or it can identify that a molecular marker is missing, that the stage was classified differently, or that a treatment option wasn't considered. Either way, the patient comes away with more information to make the best decision.
“A second opinion doesn't compete with the treating physician — it complements them. My role is to review the case with fresh eyes, apply the most up-to-date guidelines, and give you my independent technical analysis.”—Dr. Giovanni Reynoso
Moments when a second opinion makes a difference.
There are specific clinical situations where an independent review has the greatest impact on treatment decisions.
Recent diagnosis without a clear plan
You received a cancer diagnosis but have no clarity about the next step, the stage, or the available options. A second opinion organizes the information and sets priorities.
Incomplete molecular profile
The tumor was diagnosed without relevant molecular markers — EGFR, ALK, BRAF, HER2, MSI, RAS. In some tumors, that testing completely changes the treatment. Dr. Reynoso identifies what's missing and how to obtain it.
Staging in question
The stage determines whether the goal is curative or palliative — and which treatment applies. Incorrect or incomplete staging can lead to inadequate treatment in either direction.
Treatment that isn't working
The tumor progressed on first-line treatment. Before accepting that there are no more options, an independent review can identify alternatives — second-line treatment, targeted therapies, immunotherapy — that weren't considered.
Aggressive treatment proposed
You've been offered high-intensity chemotherapy, a transplant, or an experimental protocol. Confirming that the indication is correct for your specific case is reasonable and advisable.
Uncertain histological diagnosis
The biopsy shows an atypical, uncommon, or hard-to-interpret result. A review by another oncologist can clarify the diagnosis and define the correct treatment.
Do you identify with any of these?
A first one-hour consultation is enough to begin your workup and, if applicable, reach a clear diagnosis
How an oncology second opinion works with Dr. Reynoso
The oncology second opinion is a structured consultation where Dr. Reynoso reviews the case independently and completely — without assuming that what's been done so far is right or wrong.
Gather all available documentation
Biopsy with pathology result, molecular markers if performed, imaging studies, recent lab work, and a summary of the treatment received or proposed. The more complete it is, the more useful the review.
Review consultation
A full hour dedicated to reviewing every document, every clinical decision, and every aspect of the diagnosis and plan. Dr. Reynoso asks the questions needed to fully understand the case.
Molecular profile analysis
Review of which molecular markers were performed and which are missing. In some cases, a key test is found to have never been requested — and its result would change the treatment.
Evaluation of diagnosis and staging
Confirmation or review of the histological type and stage. If there's doubt about the pathological diagnosis, guidance is given on how to get a second reading of the biopsy.
Evaluation of the proposed or ongoing treatment
Review of the treatment protocol — whether it's correct for that subtype and stage according to current ASCO and ESMO guidelines, whether alternatives are available, and whether the sequence is optimal.
Clinical report for the treating team
Dr. Reynoso's analysis is documented to share with the treating physician. The second opinion complements the oncology team — it's not a confrontation.
Why seek an oncology second opinion with Dr. Reynoso?
Independent review with no prior bias
Dr. Reynoso reviews the case without having taken part in earlier decisions. That makes it possible to spot what others may have overlooked — an untested molecular marker, incomplete staging, a treatment alternative that wasn't considered.
ASCO and ESMO guidelines applied to your case
Cancer treatment evolves quickly. Dr. Reynoso applies current ASCO and ESMO guidelines — the most up-to-date available — to evaluate whether what's being proposed aligns with the international standard of care.
Identification of options that weren't considered
Targeted therapies, immunotherapy, second-line combinations — oncology has multiple options that aren't always considered in the initial evaluation. Dr. Reynoso reviews all available alternatives for that tumor type and stage.
In coordination with your current medical team
The second opinion doesn't replace the treating physician — it complements them. Dr. Reynoso works in coordination with the patient's oncology team, not against it. The goal is for the patient to have the best possible information to decide.
Independent review with no prior bias
Dr. Reynoso reviews the case without having taken part in earlier decisions. That makes it possible to spot what others may have overlooked — an untested molecular marker, incomplete staging, a treatment alternative that wasn't considered.
ASCO and ESMO guidelines applied to your case
Cancer treatment evolves quickly. Dr. Reynoso applies current ASCO and ESMO guidelines — the most up-to-date available — to evaluate whether what's being proposed aligns with the international standard of care.
Identification of options that weren't considered
Targeted therapies, immunotherapy, second-line combinations — oncology has multiple options that aren't always considered in the initial evaluation. Dr. Reynoso reviews all available alternatives for that tumor type and stage.
In coordination with your current medical team
The second opinion doesn't replace the treating physician — it complements them. Dr. Reynoso works in coordination with the patient's oncology team, not against it. The goal is for the patient to have the best possible information to decide.
Received a cancer diagnosis? The next step is a consultation.
First visit, second opinion, or oncologic follow-up — you deserve an oncologist who explains everything.
Medical Oncology in Guatemala City
Dr. Giovanni Reynoso - Oncólogo
Edificio Spazio, 15 avenida y 5 calle 5-50, Vista Hermosa III, Zona 15. Nivel 10, Oficina 10-01Bonanova Health, private hospital specializing in cancer in Zona 15
Office Hours
Monday to Tuesday from 4:00 PM to 6:00 PM Thursday from 3:00 PM to 5:00 PM
Emergency Care
Dr. Reynoso does not handle emergencies. For oncologic emergencies, go to the nearest hospital.
Coverage Areas
Guatemala City
- • Zona 15, Vista Hermosa I, II, and III
- • Zona 10, 14, 16
- • Zona 9, 13
- • Carretera a El Salvador
Metropolitan Area
- • Mixco
- • Villa Nueva
- • Santa Catarina Pinula
- • San Cristóbal
Departmental Coverage
- • All departments of Guatemala
- • Patients traveling from other parts of the country
- • Zacapa, Chiquimula, Izabal, San Marcos, Petén
International Coverage
- • El Salvador
- • Belize
- • Honduras
- • Costa Rica
Common questions, clear answers
Still have questions? Let’s talk directly on WhatsApp for personalized answers.