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MGP Cheat Sheet 2026: One-Page Review of Must-Know Facts

TL;DR
  • The 2026 exam has 245 questions across 17 domains in 6 hours 34 minutes of active testing time.
  • Solid Tumors (11%), Inherited Diseases (10%), and Hematopathology (9%) are the three highest-weighted domains.
  • The 2026 ABPath application/exam fee is USD 2,100, including a USD 200 nonrefundable administrative portion.
  • Passing requires a scaled score of 500, not a fixed raw percentage of correct answers.

What This Cheat Sheet Covers

This page is a condensed, one-stop reference for the Certification in Pathology: Molecular Genetic Pathology (MGP) examination - the joint subspecialty credential administered through the American Board of Pathology (ABPath) in coordination with the American Board of Medical Genetics and Genomics (ABMGG). It is meant to sit alongside your deeper preparation, not replace it. If you need the full narrative on how to structure months of study, see the MGP Study Guide 2026: How to Pass on Your First Attempt. If you're still confirming you qualify to sit for the exam, check the MGP Requirements 2026: Eligibility, Prerequisites & How to Qualify before you commit to a testing date.

Everything below reflects the specific facts governing this MGP subspecialty exam - not any other credential that happens to share the same three letters. Numbers, domain weights, and fee figures are drawn directly from the official ABPath blueprint and schedule documents for 2026.

Exam Format at a Glance

The MGP exam is a computer-based, single-best-answer multiple-choice test that also incorporates written/practical material - meaning you'll encounter image-based and data-interpretation items, not just plain text stems. Understanding the logistics before test day removes a major source of anxiety.

Feature2026 Detail
Total questions245 across six sections
Active testing time6 hours 34 minutes
Total scheduled time (with instructions, survey, breaks)9 hours 4 minutes
Test formatComputer-based, single-best-answer MCQ with written/practical content
Test locationIn-person only, Pearson VUE Professional Centers
Passing standardScaled score of 500

Because this is a full-day commitment at a physical testing center, plan travel and lodging in advance rather than the week before. For a detailed walkthrough of registration windows and cutoffs, see MGP Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

No Remote Option: Unlike some other board exams that shifted to remote proctoring, MGP testing remains strictly in-person at Pearson VUE Professional Centers. Build a test-center visit into your travel plans, and confirm your appointment window well ahead of the date.

The 17-Domain Blueprint

MGP content is organized into 17 domains with approximate percentage allocations in the official blueprint. Knowing these weights changes how you allocate review time - spending equal hours on a 2% domain and an 11% domain is a common and costly mistake.

Domain 10: Solid Tumors (11%)

The single largest domain. Expect heavy coverage of actionable mutations, fusion detection, and how molecular findings integrate with histology to guide targeted therapy decisions.

  • Common driver alterations across major tumor types
  • Fusion/rearrangement detection methods and reporting
  • Correlating molecular results with tumor classification

Domain 8: Inherited Diseases (10%)

Second-largest domain, centered on germline variant interpretation, inheritance patterns, and pedigree analysis.

  • Mendelian inheritance patterns and pedigree reasoning
  • Variant classification frameworks for germline findings
  • Distinguishing carrier, affected, and incidental results

Domain 11: Hematopathology (9%)

Third-largest domain, covering molecular signatures of myeloid and lymphoid neoplasms and how they integrate with morphology.

  • Recurrent mutations and rearrangements in hematologic malignancies
  • Minimal residual disease monitoring concepts
  • Clonality assessment methods

The remaining domains - Normal Structure and Function, Molecular Genetic Principles, Techniques and Methods, Assay Performance and Validation, Quality, Ethical/Legal/Regulatory issues, Indications for testing, Inherited Cancer Syndromes, Pharmacogenetics, Infectious Disease, Identity Testing, Histocompatibility, Informatics, and Management and Informatics-General - each carry smaller but still testable weights ranging from 2% to 7%. A full breakdown with study angles for each of the 17 areas lives in the MGP Exam Domains 2026: Complete Guide to All 17 Content Areas.

Key Takeaway

Rank your review time by domain weight, not by comfort level. Solid Tumors, Inherited Diseases, and Hematopathology together account for roughly 30% of the exam - proportionally more study time there pays off directly.

Fees, Registration, and Testing Mechanics

For the ABPath application route, the 2026 initial application/examination fee is USD 2,100, which includes a USD 200 nonrefundable administrative fee. This is a meaningful upfront investment, so confirm your eligibility documentation is complete before submitting - a rejected or incomplete application still costs you the administrative portion. A full cost breakdown, including what the administrative fee covers and how it differs from retake scenarios, is available at MGP Certification Cost 2026: Complete Pricing Breakdown.

  • Application route: through ABPath (this guide's focus), separate from ABMGG's Laboratory Genetics and Genomics certification track.
  • Test delivery: computer-based at Pearson VUE Professional Centers, in person only.
  • Fee structure: USD 2,100 total, USD 200 of which is nonrefundable regardless of outcome.

If you want the exact numbers behind the fee, along with historical context, don't rely on secondhand summaries - cross-check against the primary ABPath fee schedule linked from our resources page and reviewed in depth on the practice site at the main MGP practice test hub.

Passing Standard and Recent Results

ABPath uses a scaled score of 500 as the passing standard - not a fixed percentage of correct answers. This matters because it means question difficulty is factored into scoring; you cannot simply calculate "70% correct equals pass." For a deeper explanation of how scaled scoring works and what it means for your target performance, see MGP Passing Score 2026: Exactly What You Need to Pass.

In 2025, ABPath reported 50 of 56 examinees passed overall (89%), and 45 of 49 first-time examinees passed (92%). These figures come directly from ABPath's own annual reporting and should be the only numbers you cite when discussing MGP outcomes - see the full context in MGP Pass Rate 2026: What the Data Shows.

Reading the Numbers Correctly: A 92% first-time pass rate reflects candidates who were well-prepared through ACGME-accredited fellowship training and structured review - it is not a reason to under-prepare. Treat the scaled-score-of-500 threshold as your real target, not the historical pass rate.

Eligibility Recap

Before registering, confirm you meet all eligibility components:

  • Qualifying primary ABPath certification in AP/CP, AP alone, or CP alone - or eligible ABMGG physician certification.
  • Twelve months of ACGME-accredited Molecular Genetic Pathology fellowship training.
  • Applicable medical education, licensure, and training-verification requirements completed and documented.

These requirements are non-negotiable gatekeepers, and gathering verification letters can take longer than expected. Start this process early - the full checklist is broken down step-by-step in MGP Requirements 2026: Eligibility, Prerequisites & How to Qualify.

High-Yield Topics by Domain Cluster

Beyond memorizing domain names, candidates need to internalize the types of source material MGP questions draw from. Expect to interpret:

  • Molecular laboratory data - raw assay outputs, quality metrics, and controls that require you to judge validity before interpreting results.
  • Sequence and array findings - next-generation sequencing reads, copy number array plots, and variant call outputs.
  • Karyotypes and pedigrees - classic cytogenetic images paired with family history diagrams requiring inheritance-pattern reasoning.

A recurring theme across sections is distinguishing germline versus somatic findings, separating infectious-disease molecular questions (pathogen detection, viral load, resistance mutations) from laboratory-method questions (assay design, validation statistics, troubleshooting). Many candidates lose points not from lacking knowledge but from misreading which category a question stem is actually testing.

Domain 4: Assay Performance and Validation (7%)

This domain tests whether you can evaluate sensitivity, specificity, and validation study design for a new or modified molecular assay before it's used clinically.

  • Analytical vs. clinical validation concepts
  • Sensitivity/specificity tradeoffs in test design
  • Proficiency testing and quality control interpretation

Domain 12: Pharmacogenetics (5%) and Domain 9: Inherited Cancer Syndromes (5%)

Two mid-weighted but frequently tested domains that reward focused memorization of specific gene-drug pairs and hereditary cancer syndrome criteria.

  • Common pharmacogenomic variant-drug response relationships
  • Hereditary cancer syndrome gene panels and screening thresholds
  • When germline testing is indicated versus somatic-only workup

If you're unsure how difficult this material tends to feel in practice compared to other pathology subspecialty exams, the comparative breakdown in How Hard Is the MGP Exam? Complete Difficulty Guide 2026 is worth reading before you finalize your study timeline.

Scheduling Your Final Review Weeks

In the final stretch before test day, structure your remaining study time around domain weight rather than a generic review calendar. A simple, MGP-specific final-month approach:

Week 1

Highest-weight domains

  • Solid Tumors (11%) - driver mutations, fusions, tumor classification correlation
  • Inherited Diseases (10%) - pedigree logic and variant classification frameworks
Week 2

Mid-weight technical domains

  • Hematopathology (9%), Molecular Genetic Principles (7%), Assay Performance and Validation (7%)
  • Practice reading sequence/array output alongside karyotype images
Week 3

Smaller but scoring-relevant domains

  • Pharmacogenetics, Inherited Cancer Syndromes, Infectious Disease, Quality
  • Drill germline vs. somatic vs. infectious-disease question discrimination
Week 4

Low-weight domains and full review

  • Identity Testing, Histocompatibility, Informatics, Management and Informatics-General, Ethical/Legal/Regulatory issues, Indications for testing
  • Full-length timed practice under the 6-hour-34-minute active testing constraint

This is a light structural technique, not a substitute for content mastery - pair it with active recall on domain-specific facts rather than passive re-reading. For a broader set of preparation strategies tailored to MGP's exact blueprint, revisit the MGP Study Guide 2026: How to Pass on Your First Attempt.

After the Exam: Continuing Certification

Passing MGP is not the finish line. Current ABPath certificates carry no fixed expiration date, but remain conditional on active Continuing Certification participation. For ABPath diplomates, this includes:

  • Biennial PATHway reporting
  • Maintaining professional standing
  • Demonstrating lifelong learning and improvement in medical practice
  • Standard CME route: 70 qualifying credits per two-year reporting period, with at least 80% related to your scope of practice (approved training/research alternatives also exist)
  • ABPath CertLink: a quarterly assessment requiring a cumulative performance of at least 60% over four years

Note that ABMGG diplomates follow their own issuing board's maintenance requirements rather than the ABPath pathway above. Understanding this distinction early helps you plan which continuing-certification track applies to your specific certification history.

Once certified, many candidates start thinking about career direction - the kinds of laboratories, academic centers, and reference labs that hire MGP-certified pathologists are outlined in MGP Jobs, and compensation considerations are covered in the MGP Salary Guide 2026: Complete Earnings Analysis. If you're still weighing whether the credential is worth pursuing at all, Is the MGP Certification Worth It? Complete ROI Analysis 2026 lays out the full cost-versus-benefit picture.

Keep This Sheet Handy: Bookmark this page as a quick-reference companion to your deeper study materials, and run through timed practice questions modeled on the real 245-question, six-section format at the MGP practice test platform before test day.

FAQ

How many questions are on the 2026 MGP exam?

The 2026 exam schedule includes 245 questions across six sections, with 6 hours 34 minutes of active testing time and 9 hours 4 minutes of total scheduled time including instructions, survey, and breaks.

What is the passing score for MGP?

ABPath uses a scaled score of 500 as the passing standard, rather than a fixed raw percentage of correct answers.

Can I take the MGP exam remotely?

No. Testing is conducted in person at Pearson VUE Professional Centers; there is no remote-proctoring option for this exam.

Which domains carry the most weight on the exam?

Solid Tumors is the largest domain at 11%, followed by Inherited Diseases at 10% and Hematopathology at 9%, according to the official 2026 blueprint.

What does the 2026 application fee include?

The ABPath initial application/examination fee for 2026 is USD 2,100, which includes a USD 200 nonrefundable administrative fee.

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