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NEET MDS Exam Preparation – Oral Pathology
Subject: Oral Pathology
Topic: Micrognathia & median rhomboid glossitis
Micrognathia
- Small jaw, affecting the mandible or maxilla
- True micrognathia- A congential defect wherein there is an abnormal positioning of the jaw, or an abnormal relation of one jaw to the other
- Acquired micrognathia- It is of postnatal origin, usually resulting from a disturbance in the area of the TMJ.
Important associated syndromes:
- Pierre Robin syndrome
- Down’s syndrome
- Trisomy 18
- Cri du chat syndrome
- Di George syndrome
- Treacher Colin’s syndrome
Median Rhomboid Glossitis
- Caused by defective posterior dorsal point of fusion of the lateral lingual tubercles. Presents as a rhomboid, smooth mucosa, devoid of taste buds and papillae.
- Microbial etiology associated- Candida infection, hence the name Posterior midline atrophic candidiasis
- Midline soft palate erythema is seen in the area that contacts the underlying involved surface of the tongue- Kissing lesion
Questions
Trisomy of chromosome 18 is called
a) Mobius syndrome
b) Pierre Robin’s syndrome
c) Down’s syndrome
d) Edward’s syndrome
2. Developmental anomaly of the tongue associated with fungal etiology is
a) Geographic tongue
b) Ankyloglossia
c) Median rhomboid glossitis
d) Wandering rash of tongue
3.“Cat cry” is associated with
a) Down’s syndrome
b) Di George ‘s syndrome
c) Cri du Chat syndrome
d) None of the above
a) Mobius syndrome
b) Pierre Robin’s syndrome
c) Down’s syndrome
d) Edward’s syndrome
2. Developmental anomaly of the tongue associated with fungal etiology is
a) Geographic tongue
b) Ankyloglossia
c) Median rhomboid glossitis
d) Wandering rash of tongue
3.“Cat cry” is associated with
a) Down’s syndrome
b) Di George ‘s syndrome
c) Cri du Chat syndrome
d) None of the above
Answer
1) D2) C
3) C
