A patient suffering from symmetrical and persistent painless swelling of lacrimal and salivary gland with no or less xerostomia, responds to steroid therapy. What could be the possible diagnosis for this patient?
**Core Concept**
The patient's symptoms suggest a condition affecting the salivary and lacrimal glands, characterized by symmetrical and persistent painless swelling, with minimal xerostomia (dry mouth). This presentation, along with a positive response to steroid therapy, points towards an autoimmune or inflammatory cause.
**Why the Correct Answer is Right**
The patient's condition, characterized by symmetrical and persistent painless swelling of the salivary and lacrimal glands, with minimal xerostomia, is most likely Sjögren's syndrome. This autoimmune disorder affects the exocrine glands, particularly the salivary and lacrimal glands, leading to inflammation and glandular dysfunction. Steroid therapy is often effective in reducing inflammation and improving symptoms in Sjögren's syndrome. The involvement of multiple exocrine glands and the response to steroid therapy are key features that distinguish Sjögren's syndrome from other conditions.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is likely incorrect because it does not specify a condition that typically presents with symmetrical and persistent painless swelling of the salivary and lacrimal glands, along with a positive response to steroid therapy.
* **Option B:** This option might be incorrect because it does not accurately represent a condition that is primarily characterized by salivary and lacrimal gland involvement, with minimal xerostomia.
* **Option C:** This option is likely incorrect because it does not accurately represent a condition that is typically responsive to steroid therapy for the described symptoms.
**Clinical Pearl / High-Yield Fact**
Sjögren's syndrome often presents with a mix of autoimmune and inflammatory features, making it essential to consider this diagnosis in patients with symmetrical and persistent painless swelling of the salivary and lacrimal glands, who respond to steroid therapy.
**Correct Answer: C. Sjögren's syndrome**