Immunoglobulin G4-Related Disease: A Case Report.

Immunoglobulin G4-related disease (IgG4 RD) has a fair prognosis but its diagnosis has been difficult due to the condition's wide range of clinical manifestations, limited awareness among common practitioners, and various differentials. Here, we present a case of an elderly male who presented with recurrent dental caries, recurrent sinusitis, persistent dry mouth, and dry eyes along with bilateral parotid gland enlargement without any lymphadenopathy. The patient was evaluated further and found to have elevated levels of IgG4 and on histopathological examination of the parotid gland showed lymphocytic infiltrate with germinal centers without any granulomatous lesions and IgG4-positive plasma cells on immunohistochemistry (IHC). The patient was diagnosed with IgG4 RD and was started on corticosteroids, after which there was a symptomatic improvement.

Complete heart block in COVID-19 without prior cardiac disease.

Cardiac involvement in COVID-19 is not rare but underdiagnosed. We report a 78-year-old man with COVID-19 and complete heart block, timely managed by teamwork involving internist, cardiologist, and intensivist. This case highlights the importance of involvement of the conducting system of the heart in COVID-19 that needs immediate life-saving intervention, especially in community.

Parotid Tuberculosis as the Presenting Manifestation of Disseminated Disease in an Otherwise Asymptomatic HIV Patient.

Parotid tuberculosis is not widely described in the literature. Even though a rare presentation of a commonly occurring disease, it is still missed as a differential diagnosis and often mistaken for neoplasms, eventually leading to unnecessary surgical resections. Here, we present a case of a young lady with a slowly growing unilateral parotid mass along with matted, non-tender cervical, axillary, and inguinal lymphadenopathy, who was incidentally found to have HIV with a cluster of differentiation 4 (CD4) lymphocyte count of 38 per microliter. Fine needle aspiration revealed acid-fast bacilli and CT thorax showed features of pulmonary tuberculosis, thus suggesting a disseminated tuberculosis infection. She was started on anti-tubercular and anti-retroviral therapy, after which there was a symptomatic improvement.

Efficacy of DPP-4 inhibitors and SGLT2 inhibitors compared to sulphonylureas in adult patients with diabetes with low c-peptide levels with or without anti-GAD65 antibody positivity.

BACKGROUND AND AIMS: Latent Autoimmune Diabetes of Adulthood (LADA) is different from type 2 diabetes. Present treatment protocols do not reflect that. DPP-4 and SGLT2 inhibitors have changed therapy. DPP-4 inhibitor use has shown delayed decline in beta-cell reserve in LADA. We studied patients with low c-peptide to assess relationship between c-peptide and anti-GAD65 antibody levels and compare DPP-4 inhibitors with SGLT2 inhibitors and sulphonylureas. METHODS: The study was an open-label trial conducted in 156 participants with low c-peptide (<0.8 ng/mL), age > 25 years, recently diagnosed diabetes with HBA1c ≥ 6.5%. Participants were enrolled into three arms: Group A received sulphonylureas + metformin, Group B received DPP-4 inhibitors + metformin, and Group C received SGLT-2 inhibitors + metformin. Serum anti-GAD-65 antibodies were assessed using sandwich ELISA. Participants were assessed on enrolment and after three months of dual pharmacotherapy. RESULTS: The three arms were comparable on enrolment. 52% of participants with low c-peptide had high anti-GAD65 antibody titers. Significant differences were observed after three months - DPP-4 inhibitors reduced HbA1c by 1.1 ± 0.3%, compared to SGLT2 inhibitors (0.8 ± 0.13%) and sulphonylureas (0.7 ± 0.3%) CONCLUSION: DPP-4 inhibitors appear to provide better glycemic control than alternate therapeutic options in patients with low serum c-peptide.

Case of rare association of peripheral neuropathy with mixed connective tissue disorder.

Chronic inflammatory demyelinating polyneuropathy (CIDP) is probably the best-recognised progressive immune-mediated peripheral neuropathy. It presents with symmetrical, motor predominant peripheral neuropathy that produces both distal and proximal weakness. Here we report a case of a 38-year-old man who presented with chronic additive large and small joint inflammatory polyarthritis, associated with morning stiffness, anasarca associated with frothy urine and progressive episodic, relapsing and remitting, sensorimotor lower motor neuron type quadriparesis without any bladder and bowel involvement. He was diagnosed as a case of CIDP, and the aetiology was found out to be mixed connective tissue disorder, which is a rare association with CIDP. The patient responded dramatically to glucocorticoid.