Clinical Vignette
Patient: "Emma," 8-year-old 2nd grader, referred by her teacher for persistent reading difficulty despite normal intelligence and adequate instruction.
Chief Concern: Teacher: "Emma is one of the brightest kids in my class for verbal discussion, but she cannot read at grade level. She reads slowly, makes errors on common words, and her spelling is terrible. She's getting more frustrated and starting to say she's 'stupid.'"
History of Present Illness: Emma has struggled with reading since kindergarten. Despite in-class reading support for 2 years, she reads at a late kindergarten level (approximately 1.5 grades below). Specific difficulties: (1) word reading accuracy — misreads common words (substitutes visually similar words), guesses at words from context rather than decoding, (2) reading fluency — reads slowly and effortfully, loses place frequently, (3) reading comprehension — when text is read TO her, comprehension is excellent; when she reads independently, comprehension drops significantly because the reading effort exhausts her cognitive resources, (4) spelling — phonetically irregular (writes 'sed' for 'said,' 'ther' for 'there'), inconsistent (spells the same word differently across attempts). Her verbal IQ is estimated above-average: she has excellent vocabulary, tells elaborate stories, and engages in sophisticated class discussion. She has received standard reading instruction (phonics-based curriculum) for 2 years without adequate progress. No ADHD symptoms (attention and behavior normal when not reading). No sensory deficits (vision and hearing screened normal). She is becoming reluctant to read aloud and has told her parents: 'My brain is broken.'
Medical History: Vision: normal. Hearing: normal. No developmental delays otherwise.
Mental Status Exam: Engaged, verbal, articulate in conversation. Vocabulary above grade level. When asked to read a 2nd-grade passage aloud: halting, slow, multiple errors (substituted 'house' for 'horse,' omitted small function words). Became visibly frustrated and stopped after 30 seconds. When the same passage was read TO her, answered all comprehension questions correctly. Affect distressed during reading task. Self-statement: 'See? I can't do it. I'm not smart enough.'
Step 1: Specific Learning Disorder DSM-5-TR Criteria
Criterion A: Difficulties learning and using academic skills, with ≥1 symptom persisting for ≥6 months despite targeted intervention.
(1) Inaccurate/slow/effortful word reading. (2) Difficulty understanding meaning of what is read (when reading independently). (3) Difficulties with spelling. All 3 present. Duration: 2+ years. Targeted intervention: 2 years of reading support without adequate progress. MET (3 of 6 possible symptoms).
Criterion B: Affected academic skills are substantially and quantifiably below expected for age, and cause significant interference.
Reading 1.5 grades below level. Interferes with all academic subjects requiring reading. Developing negative self-concept about intelligence. MET.
Criterion C: Learning difficulties begin during school-age years (may not fully manifest until demands exceed capacity).
Difficulties noted since kindergarten. Manifested immediately with literacy instruction. MET.
Criterion D: Not better explained by intellectual disabilities, sensory deficits, neurological disorders, other mental disorders, inadequate instruction, or lack of language proficiency.
Normal IQ (above-average verbal). Normal vision/hearing. No ADHD. Adequate instruction (phonics-based, 2 years). English is first language. MET — all alternatives excluded.
Step 2: The Discrepancy Pattern
| Domain | Performance | Significance |
|---|---|---|
| Verbal intelligence | Above-average (excellent vocabulary, elaborate narratives, sophisticated discussion) | Demonstrates cognitive capacity is NOT the issue |
| Listening comprehension | Excellent (answers all questions when text is read to her) | Written language decoding is the specific deficit |
| Word reading | 1.5 grades below level (inaccurate, slow, effortful) | Core deficit: phonological decoding |
| Spelling | Phonetically irregular, inconsistent | Reflects the same phonological processing weakness |
| Self-concept | Deteriorating ('my brain is broken,' 'I'm stupid') | Secondary emotional consequence requiring intervention |
Impact on Self-Concept
The discrepancy between Emma's verbal intelligence (above-average) and her reading performance (1.5 grades below) is the hallmark of SLD. She is not 'stupid' — her brain processes written language differently. Reframing this for Emma and her parents is a critical intervention to prevent secondary emotional damage.
Diagnostic Formulation
Diagnostic Conclusion
Specific Learning Disorder, with Impairment in Reading (F81.0) — Moderate Severity: All 4 DSM-5-TR criteria met. Impairment in reading: word reading accuracy, reading fluency, and reading comprehension (secondary to decoding effort). Spelling also affected. Normal cognitive ability excludes intellectual disability. Severity: moderate (markedly below grade level; some skills may be attained with intensive support). Treatment: evidence-based reading intervention using Orton-Gillingham or structured literacy approach (systematic, explicit phonics instruction). Accommodations: extended time, text-to-speech technology, oral assessments when appropriate. Self-concept intervention: cognitive reframing ('your brain works differently, not worse').
Teaching Points
- DSM-5-TR moved to a unified 'Specific Learning Disorder' diagnosis with specifiers for the area of impairment (reading, written expression, mathematics). This replaced the DSM-IV categorical approach of Reading Disorder, Mathematics Disorder, and Disorder of Written Expression. The alternative term 'dyslexia' may be used for the reading-impaired subtype.
- The core deficit in dyslexia is PHONOLOGICAL PROCESSING: the ability to identify and manipulate the sound structure of language. This is why reading (decoding written symbols to sounds) and spelling (encoding sounds to written symbols) are both affected, while listening comprehension and verbal ability are preserved.
- The 'discrepancy model' (comparing IQ to achievement) is no longer required by DSM-5-TR, but the cognitive-achievement discrepancy remains clinically informative. Emma's above-average verbal IQ with below-grade reading performance illustrates the specific nature of the deficit: she can think but cannot decode written text efficiently.
- Response to Intervention (RTI) is both a diagnostic tool and an intervention model: if a student does not respond adequately to evidence-based, tiered instruction (Tier 1 universal, Tier 2 targeted, Tier 3 intensive), the lack of response supports an SLD diagnosis. Emma's 2 years of reading support without adequate progress satisfies this criterion.
- Secondary emotional consequences of SLD are clinically significant. Emma's self-label ('I'm stupid') is a common and damaging consequence. Children with SLD develop negative academic self-concept, anxiety about school performance, and avoidance behaviors. Addressing self-concept is as important as addressing the reading deficit.