Mateo's Complete Clinical Story (and His Diagnosis)
Putting every clue together, what is Mateo's diagnosis, and how do we justify it?
💡 The evidence from twenty lessons converges on one diagnosis: isolated, lip and , multifactorial, managed over a lifetime.
Prerequisite check
- Optimal care is delivered by a cleft/craniofacial team spanning dental specialties (orthodontics, oral/maxillofacial surgery, pediatric dentistry, prosthodontics), medical specialties (plastic surgery, ENT, genetics, pediatrics, psychiatry), and allied health (audiology, speech-language pathology, nursing, psychology, social work).
- The reviews state that coordination of these specialties over years is what drives good functional and esthetic outcomes, not the specialists alone.
What you will learn
Goal: Students will synthesize the evidence gathered across all twenty lessons to reach and justify Mateo's diagnosis (isolated lip and , multifactorial, managed over a lifetime) and assemble his complete clinical story.
- Mateo's evidence board argues against a syndrome: a complete left CL/P with no other anomalies, no lower-, a negative and , unaffected parents with no clean dominant pattern.
- His profile fits the common population pattern: CL/P is the most common craniofacial birth defect (about 1 in 700), more common in males, usually left-sided when , and causes trace to many small genetic and environmental contributors.
- for unaffected parents with one affected child is intermediate, about 2 to 5 percent (the data tables give about 4.4 percent for CLP in this family situation), not the 50 percent of a dominant single gene.
- Mateo's diagnosis is isolated, lip and with , reached partly as a , and it is a lifelong condition managed by the same multidisciplinary team and 18-year plan.
Model: Mateo's evidence board and two competing explanations
Lay out the case file; each row is a clue and what it argues. A complete left lip and with no other anomalies on the (L1, L2) argues for a cleft that travels alone. No lower- (L3, L4) argues against Van der Woude, the most common . A negative and , plus the very low microarray yield for lip/palate (L5), argue against a chromosomal or single-gene syndrome. Unaffected parents with a sparse, ambiguous family history and no clean dominant pattern (the population and causes lessons) argue against simple Mendelian inheritance. Mateo's profile fitting the common population pattern (CL/P is the most common craniofacial birth defect, about 1 in 700, more common in males, usually left-sided when unilateral) fits the common, multifactorial form. Causes tracing to many small genetic and environmental contributors argue multifactorial, not single-gene. And a for unaffected parents with one affected child of about 2 to 5 percent (the data tables give about 4.4 percent for CLP), not 50 percent, fits a multifactorial threshold rather than dominant inheritance.
Two explanations were on the table from Lesson 3. Explanation A: Mateo's is one feature of a hidden syndrome. Explanation B: Mateo's cleft is isolated, the only finding, caused by many small genetic and environmental factors together. The evidence board is how you decide, and it points to B.
Explore (work the model before reading on)
- List every clue that argues against a syndrome.
- List every clue that argues for a common, multifactorial cause.
- Based on your two lists, which explanation does the evidence support? State it as a verdict.
- The for Mateo's parents is about 2 to 5 percent, not the 50 percent you would expect if a single dominant gene caused the . Explain how that one number helps you choose between Explanation A and Explanation B.
- A diagnosis like this is reached partly by ruling things out. Predict one thing that, if it had been present at Mateo's (lower-, a heart defect, or eye problems), would have pushed the team toward Explanation A instead.
- In one sentence, state Mateo's diagnosis and the single strongest reason your team is confident in it.
Guided notes
The converging diagnosis
- Mateo has an ______ (isolated): the cleft is his only anomaly, with no associated malformation pattern.
- Because it is not part of a broader syndrome, it is called ______ (nonsyndromic).
Why a diagnosis of exclusion fits
- The team actively looked for syndromes (Van der Woude , 22q11.2, Stickler, Pierre Robin) and found ______ of their features, and the yield for isolated CL/P is very low.
- The absence of those features plus the positive fit to the common population pattern is what justifies the call.
Multifactorial and lifelong
- The inheritance is ______ (multifactorial): many small-effect variants plus environment, with the appearing when total liability crosses a threshold.
- is intermediate, about ______ to ______ percent for unaffected parents with one affected child, and the condition is managed over a lifetime by the team and 18-year plan.
Reading the Research
- Skim the title and abstract first to get the gist.
- Circle the one sentence that states the main claim.
- Box the evidence the authors give for that claim.
- Mark one sentence that confuses you, and move on.
Vetted readings for this lesson
- Dixon MJ, et al. 2011. Cleft lip and palate: genetic and environmental influences. Nat Rev Genet. [PMID:21331089]
- Vyas T, et al. 2020. Cleft of lip and palate: A review. J Family Med Prim Care. [PMID:32984097]
- Yan S, et al. 2024. Prenatal CL/P ultrasound abnormalities and copy number variants. Ital J Pediatr. [PMID:39169438]
- Askarian S, et al. 2022. Genetic factors in cleft lip-cleft palate and clinical utility. Oral Maxillofac Surg. [PMID:35426585]
Track your progress today
Check these off as you work through the lesson, then submit. This tells Mr. Mendoza how you're doing so he can help the class. It does not replace turning in your producible.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
- Read the Model and answered the Explore questions.
- Filled in the guided notes in my own words.
- Defined the new vocabulary with an example.
- Built the producible: As the team, present Mateo's case-conference summary to his family in one paragraph: state his diagnosis in plain language, give the two strongest reasons the team is confident it is isolated and not a syndrome, give the recurrence-risk number for future children, and end with one sentence about what 'managed over a lifetime' means for him. This is your Domain Report in miniature.
- Wrote my Claim, Evidence, and Reasoning exit ticket.
Exit ticket (Claim, Evidence, Reasoning)
- Claim: Mateo has ____ (isolated, nonsyndromic) lip and with .
- Evidence: At least three clues: no other anomalies, no ____ pits, low yield, a fit to the common 1-in-700 pattern, and a of about ____ to ____ percent.
- Reasoning: Ruling out syndromes plus the intermediate justifies 'isolated and multifactorial' over 'syndromic' because ____.
| Criterion | Proficient | Developing | Beginning |
|---|---|---|---|
| Complete | Every required part of the artifact is present and filled in. | Most parts are present, but one is missing or left blank. | Several parts are missing. |
| Accurate | The science and data are correct and match the evidence. | Mostly correct, with a small factual slip. | Key science or data is wrong. |
| Scientific reasoning (CER) | States a claim, backs it with specific evidence, and explains the reasoning. | Has a claim and evidence, but the reasoning is thin or missing. | Gives an answer with no evidence or reasoning. |
| Professional communication | Clear, organized, and labeled the way a clinician or scientist would write it. | Readable but disorganized or missing labels. | Hard to follow. |
| Submitted | Turned in the right way (Schoology for routine work) and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
- CompleteProficient: Nothing is left blank: the model fills every part of "As the team, present Mateo's case-conference summary to his family in one paragraph: state his diagnosis in plain language, give the two strongest reasons the team is confident it is isolated and not a syndrome, give the recurrence-risk number for future children, and end with one sentence about what 'managed over a lifetime' means for him. This is your Domain Report in miniature.".
- AccurateProficient: Every number and claim matches the case evidence.
- Scientific reasoning (CER)Proficient: It names a claim, cites the specific evidence, and explains the reasoning, not just the answer.
- Professional communicationProficient: It is organized and labeled like a real chart note.
- SubmittedProficient: It would be turned in on Schoology and confirmed.
Where this leads: careers
What's next: We answered the question we have chased since day one: Mateo has isolated, lip and , multifactorial, managed over a lifetime. But Mateo is not only the disease team's patient. The genetic, developmental, anatomical, and experimental teams have studied the same patient from their own angles. Five lenses, one Mateo, one diagnosis: bring your Disease to the conference and see how your answer matches theirs.