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Exam Review

Key Facts: CMCPER Cirugía Plástica Exam

17 Apr 2026

Written theoretical examination date

CMCPER Convocatoria 2026

18-19 Apr 2026

Oral carousel examination dates

CMCPER Convocatoria 2026

MXN 13,000 / 18,000

Registration fee (National / Foreign)

CMCPER Convocatoria 2026

Tlatelolco UNAM

Testing venue in Mexico City

CMCPER Convocatoria 2026

5 years

Certification validity under CONACEM

CMCPER / CONACEM Guidelines

The CMCPER certification exam is the CONACEM-recognized board certification exam for plastic surgery in Mexico: a written theoretical exam at Torre de Tlatelolco UNAM followed by an oral carousel for qualifying surgeons.

Sample CMCPER Cirugía Plástica Practice Questions

Try these sample questions to review concepts for the CMCPER Cirugía Plástica exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 102+ question experience with AI tutoring.

1During normal cutaneous wound healing, which phase is characterized by peak fibroblast proliferation, robust neovascularization, and predominant initial deposition of type III collagen?
A.Hemostasis phase
B.Inflammatory phase
C.Proliferative phase
D.Maturation and remodeling phase
Explanation: The proliferative phase typically spans from day 4 to day 21 post-injury. It is characterized by fibroblast migration and proliferation, angiogenesis driven by VEGF and bFGF, and substantial synthesis of granulation tissue. During this phase, fibroblasts initially deposit predominantly type III collagen, which is later replaced by stronger type I collagen during the maturation and remodeling phase.
2During the first 24 to 48 hours following skin graft placement, by which physiological mechanism does the graft survive before true vascular connections are formed?
A.Plasmatic imbibition
B.Inosculation
C.Angiogenic capillary sprouting
D.Direct recipient arterial ingrowth
Explanation: Plasmatic imbibition is the initial phase of skin graft survival lasting approximately 24 to 48 hours. During this period, the ischemic graft absorbs nutrient-rich wound fluid, serum proteins, and electrolytes from the recipient bed by passive capillary action and diffusion, resulting in a 20% to 40% weight gain of the graft before any vascular lumina connect.
3Regarding the contractile behavior of skin grafts, which statement accurately distinguishes a full-thickness skin graft (FTSG) from a split-thickness skin graft (STSG)?
A.STSGs exhibit markedly greater primary recoil immediately upon harvesting because their dermal architecture lacks intact elastic fibers.
B.FTSGs exhibit greater primary contraction upon harvest, but experience significantly less secondary contraction during wound healing.
C.FTSGs undergo substantially greater secondary contraction in the recipient bed due to the dense collagenous matrix of the reticular dermis.
D.STSGs and FTSGs undergo identical degrees of primary elastic recoil and subsequent secondary contraction when placed onto vascular beds.
Explanation: Primary contraction occurs immediately upon harvesting due to passive recoil of elastin fibers within the dermis; because FTSGs contain the full dermal thickness and abundant elastin, they contract more immediately after harvest. Conversely, secondary contraction is mediated by myofibroblasts in the recipient wound bed; thicker grafts containing more dermis suppress myofibroblast differentiation, so FTSGs experience significantly less secondary contracture over time compared to thin STSGs.
4At approximately 48 to 72 hours after skin graft application, what key vascular event defines the phase of inosculation?
A.Complete lymphangiogenesis establishing normal mature lymphatic drainage across the graft margins
B.Extensive deep dermal collagen remodeling with organized substitution by type I fibers
C.Complete degeneration of donor capillaries followed by histiocytic clearance
D.Direct microvascular anastomosis between pre-existing cut vessel ends of graft and bed
Explanation: Inosculation is the second distinct phase of skin graft integration, occurring at 48 to 72 hours post-transfer. In this phase, pre-existing patent endothelial channels of the graft align and establish kissing microvascular connections (anastomoses) with capillaries of the recipient bed, allowing the resumption of initial red blood cell circulation through the graft.
5According to the Mathes and Nahai classification of muscle flaps, which vascular pattern defines a Type II muscle flap?
A.A single dominant vascular pedicle supplying the entire muscle belly
B.One dominant vascular pedicle combined with one or more minor vascular pedicles
C.Two codominant vascular pedicles arising from separate major arterial systems
D.Segmental vascular pedicles along the entire length of the muscle belly
Explanation: In the Mathes and Nahai classification, a Type II muscle flap possesses one dominant vascular pedicle that can support the entire muscle, along with one or more minor pedicles that enter the muscle elsewhere. Classic examples of Type II muscle flaps include the gracilis, soleus, trapezius, and abductor hallucis muscles.
6Which of the following muscle flaps is classified as a Mathes and Nahai Type V muscle flap?
A.Latissimus dorsi
B.Gluteus maximus
C.Gracilis
D.Sartorius
Explanation: A Mathes and Nahai Type V flap is characterized by one dominant vascular pedicle (which allows elevation and transfer as an axial flap or free tissue transfer) and secondary segmental vascular pedicles that can support the muscle if the dominant pedicle is divided. Classic examples are the latissimus dorsi (dominant thoracodorsal artery, secondary posterior intercostal and lumbar perforators) and the pectoralis major (dominant thoracoacromial pedicle, secondary internal mammary perforators).
7Which of the following muscle units exemplifies a Mathes and Nahai Type I muscle flap, possessing only a single dominant vascular pedicle?
A.Rectus abdominis
B.Pectoralis major
C.Extensor digitorum longus
D.Tensor fasciae latae
Explanation: A Type I muscle flap has a single vascular pedicle entering the muscle belly. The tensor fasciae latae (TFL), supplied solely by the ascending branch of the lateral circumflex femoral artery, and the gastrocnemius (medial and lateral bellies supplied individually by the medial and lateral sural arteries) are quintessential Type I muscle flaps.
8What is the defining anatomical characteristic of a Mathes and Nahai Type III muscle flap?
A.Multiple segmental vascular pedicles of equal caliber along the belly
B.A dominant pedicle with several minor auxiliary pedicles entering distally
C.Two codominant vascular pedicles from separate regional arterial origins
D.A single vascular pedicle entering exclusively near the proximal muscle origin
Explanation: Type III muscle flaps possess two codominant vascular pedicles arising from distinct vascular territories, either of which is capable of sustaining a substantial portion or the entirety of the muscle belly. Classic examples include the rectus abdominis (deep inferior epigastric artery and superior epigastric artery) and the gluteus maximus (superior gluteal artery and inferior gluteal artery).
9Which of the following muscle flaps is classified as Mathes and Nahai Type IV, severely limiting its arc of rotation when transposed as a pedicled unit?
A.Gastrocnemius
B.Sartorius
C.Soleus
D.Pectoralis major
Explanation: The sartorius is a classic Type IV muscle flap, receiving its blood supply through multiple segmental pedicles (usually 6 to 10) arising from the superficial femoral artery. Because each pedicle only perfuses a small segment of the muscle, division of multiple pedicles to achieve mobilization can result in segmental muscle necrosis, severely limiting its rotational arc.
10What is the primary anatomical advantage of a deep inferior epigastric perforator (DIEP) flap over a traditional transverse rectus abdominis musculocutaneous (TRAM) flap?
A.Preservation of rectus abdominis muscle and anterior sheath, significantly reducing donor site abdominal wall morbidity
B.Provision of a markedly larger cutaneous paddle surface area compared to what can be harvested on a standard unipedicled TRAM
C.Avoidance of microvascular anastomosis by relying on axial arc transposition into contralateral chest wall defects
D.Complete immunity from venous congestion due to direct superficial epigastric venous connections
Explanation: The DIEP flap is a muscle-sparing perforator flap where skin and subcutaneous fat are harvested based on individual musculocutaneous perforating vessels arising from the deep inferior epigastric system. By dissecting the perforator through the rectus abdominis muscle, the muscle and the anterior rectus fascia are spared, substantially decreasing the incidence of abdominal bulge, hernia, and donor site functional impairment compared to traditional TRAM flaps.

About the CMCPER Cirugía Plástica Exam

Independent CMCPER plastic surgery certification study practice by OpenExamPrep. The official examination administered by the Consejo Mexicano de Cirugía Plástica, Estética y Reconstructiva, A.C. (CMCPER) under CONACEM idoneidad evaluates theoretical knowledge and clinical problem-solving through a written examination followed by an oral carousel. This bank is an independent English-language MCQ study adaptation built around the six evaluation areas the CMCPER lists (basic principles, grafts and flaps; burns; hand; craniofacial; lower-extremity and trunk reconstruction; aesthetic surgery). It is not an official exam paper, translation, or simulation of the Spanish-language written exam or the oral carousel stage.

Exam sponsor: Consejo Mexicano de Cirugía Plástica, Estética y Reconstructiva, A.C. (CMCPER). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Two-stage evaluation: Stage 1 is an in-person written theoretical examination (examen teórico-escrito) covering comprehensive plastic, aesthetic, and reconstructive surgery. Candidates passing the theoretical exam qualify for Stage 2, an oral carousel examination (mesas de carrusel temáticas) with clinical cases and imaging. This practice bank covers the written theoretical examination only.

Time Limit

Not published

Passing Score

not-published

Exam / Certification Fees

MXN 13,000 (national programs) / MXN 18,000 (foreign programs)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Official evaluation area (weight not published)

Principios básicos, injertos y colgajos

Wound healing biology and scars, skin graft take, Mathes and Nahai and Cormack-Lamberty flap classifications, perforator flaps, flap delay, microsurgical anastomosis and free-flap monitoring and salvage

Official evaluation area (weight not published)

Manejo y cirugía en quemaduras

Parkland resuscitation and its endpoints, inhalation injury, electrical injury and myoglobinuria, topical antimicrobials, and escharotomy

Official evaluation area (weight not published)

Cirugía de la mano, congénita y traumática

Flexor tendon zones, repair and rehabilitation, extensor injuries (mallet, boutonnière), nerve injury classification and regeneration, tendon transfers, and replantation

Official evaluation area (weight not published)

Cirugía craneofacial: congénitos y traumáticos

Mandibular, Le Fort, zygomaticomaxillary, orbital and frontal sinus fractures, cleft lip and palate management, craniosynostosis, and craniofacial syndromes

Official evaluation area (weight not published)

Reconstructiva de extremidad inferior y tronco (microcirugía)

Leg coverage by thirds and open fracture classification, autologous and implant breast reconstruction, and reconstruction after skin cancer, eyelid and lip excision

Official evaluation area (weight not published)

Cirugía estética

Facial analysis, rhinoplasty, blepharoplasty, SMAS and facelift nerve anatomy, breast augmentation and its complications, abdominoplasty, liposuction and gluteal fat grafting safety

Preparing for the CMCPER Cirugía Plástica Exam

What You Need to Know

  • Passing score: not-published
  • Assessment: Two-stage evaluation: Stage 1 is an in-person written theoretical examination (examen teórico-escrito) covering comprehensive plastic, aesthetic, and reconstructive surgery. Candidates passing the theoretical exam qualify for Stage 2, an oral carousel examination (mesas de carrusel temáticas) with clinical cases and imaging. This practice bank covers the written theoretical examination only.
  • Time limit: Not published
  • Exam / certification fees: MXN 13,000 (national programs) / MXN 18,000 (foreign programs) Official sources

Using Our Practice Resources

  • Work through all 102 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

CMCPER Cirugía Plástica: Suggested Study Strategy

1Master wound healing cascades and graft physiology: memorize the precise timing and cellular events of plasma imbibition (first 24-48 hours), inosculation (48-72 hours), and revascularization.
2Thoroughly understand the Mathes and Nahai muscle flap classification (Types I through V) along with clinical workhorse flaps (e.g., TRAM, latissimus dorsi, gastrocnemius, gracilis).
3Review craniofacial fracture management algorithms: Le Fort patterns, zygomaticomaxillary complex buttress reduction, and mandibular champy line plate fixation principles.
4Memorize the Parkland formula and initial burn management protocols, including specific topical agents (mafenide acetate for cartilage/eschar penetration vs silver sulfadiazine) and emergency escharotomy indications.
5Review the safety guidelines for gluteal fat grafting (subcutaneous plane only; never intramuscular) to avoid fatal pulmonary fat embolism, and know the Baker grading scale for capsular contracture.

Frequently Asked Questions

What is the CMCPER certification exam?

The Examen de Certificación en Cirugía Plástica, Estética y Reconstructiva is administered by the Consejo Mexicano de Cirugía Plástica, Estética y Reconstructiva, A.C. (CMCPER), holding idoneidad under Articles 81 and 272 Bis of the Mexican Ley General de Salud. It certifies that a plastic surgeon possesses the advanced knowledge, technical discernment, and ethical competence required for safe independent practice throughout Mexico.

How is the 2026 CMCPER examination administered?

For the first 2026 period, the written theoretical exam takes place on 17 April 2026 at the Torre del Centro Cultural Universitario Tlatelolco UNAM in Mexico City. Candidates who pass the written stage advance to the oral clinical case exam held on 18-19 April 2026 across thematic carousel tables.

What are the fees and eligibility requirements for the CMCPER exam?

The examination fee is MXN 13,000 for graduates of Mexican residency programs and MXN 18,000 for graduates of foreign programs. Candidates must have completed at least 4 years of formal residency training in Plastic, Aesthetic, and Reconstructive Surgery in a program recognized in Mexico, or have validated foreign specialty credentials.

What topics are evaluated in the CMCPER examination?

The CMCPER lists six evaluation areas: basic principles, grafts and flaps; burn management and surgery; hand surgery, congenital and traumatic; craniofacial surgery, congenital and traumatic; lower-extremity and trunk reconstruction (microsurgery); and aesthetic surgery. Together they span wound healing physiology, skin grafts and flaps, microsurgery, craniofacial trauma, hand and peripheral nerve surgery, burn resuscitation and acute care, congenital anomalies including cleft lip and palate, facial and body aesthetic surgery, and oncologic skin and breast reconstruction.

Does this OpenExamPrep question bank simulate the oral carousel stage?

No. This practice bank is an independent English-language MCQ study adaptation focusing on the knowledge and clinical scenarios assessed in the written theoretical examination. The oral carousel stage, consisting of interactive clinical cases and image-based stations with examiners, is not simulated.