A 30 year old unmarried woman from a low socio economic status, family believes that a rich boy staying in her neighbourhood is in deep love with her. The boy clearly denies his love towards this lady. Still the lady insists that his denial is a secret affirmation of his love towards her. She makes desperate attempts to meet the boy despite resistance from her family. She also develops sadness at times when her effo to meet the boy does not materialize. She is able to maintain her daily routine but however, remains preoccupied with the thoughts of this boy. She is likely to be suffering from:

**Core Concept**
Delusional disorder is a psychiatric condition characterized by the presence of one or more non-bizarre delusions that last for at least one month. These delusions can be persistent and unshakeable, despite evidence to the contrary, and can significantly impair daily functioning.

**Why the Correct Answer is Right**
The given scenario describes a case of delusional disorder, where the woman has a persistent and unshakeable delusion that the boy is in love with her. This delusion is not based on reality, as the boy has clearly denied his love for her. Despite resistance from her family, she continues to make desperate attempts to meet the boy, indicating that her delusion is driving her behavior. Her preoccupation with the boy and sadness when her attempts to meet him are unsuccessful further support the diagnosis of delusional disorder.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not describe a specific psychiatric condition. The scenario provided is more consistent with delusional disorder, which is characterized by a single, non-bizarre delusion.

**Option B:** This option is incorrect as it refers to a depressive disorder, which is characterized by persistent sadness, loss of interest in activities, and other symptoms. While the woman in the scenario does experience sadness, it is not the primary symptom, and her behavior is more consistent with delusional disorder.

**Option C:** This option is incorrect as it refers to a personality disorder, which is characterized by enduring patterns of thought and behavior that deviate from cultural norms. The scenario provided does not describe a personality disorder, but rather a specific psychiatric condition (delusional disorder).

**Option D:** This option is incorrect as it refers to a dissociative disorder, which is characterized by a disruption in the integration of consciousness, memory, or identity. The scenario provided does not describe a dissociative disorder, but rather a delusional disorder.

**Clinical Pearl / High-Yield Fact**
Delusional disorder can be challenging to diagnose, as the individual may appear to be functioning normally, despite their persistent delusions. It is essential to carefully assess the individual's behavior, thoughts, and feelings to determine the underlying cause of their symptoms.

**Correct Answer:** C.

✓ Correct Answer: D. Schizophrenia