Amyloidosis is a rare systemic disorder caused by abnormal folding of normal soluble proteins leading to fibril formation in one or more body organs, systems or soft tissues. Amyloid goiter is characterized by deposits of amyloid protein in the thyroid tissue. Amyloid infiltration of thyroid gland with development of secondary goiter is rare. Here we report a case of 36-year-old female presented with progressive painless swelling over neck. Thyroid profile was normal. Ultrasound neck showed enlarged bilateral thyroid gland and isthmus. Fine needle aspiration cytology suggestive of subacute thyroiditis (granulomatous thyroiditis). Total thyroidectomy was done and biopsy sample revealed amyloid goiter.

Neuromyelitis optica spectrum disorder (NMOSD) is an autoimmune disease that causes severe demyelination, especially in the optic nerve and spinal cord with typical clinical manifestations of acute optic neuritis and transverse myelitis. Seventy to ninety percent of the cases of NMOSD test positive for aquaporin 4 IgG Antibodies (AQP4 IgG Ab). Here we report a case of 22-year-old female who presented with history of diffuse headache since 1 week, history of double vision since1 week and excessive day time sleepiness since2 months. Patient had a past history of bilateral and simultaneous optic neuritis 9 months back. On further evaluation patient was diagnosed as seronegative NMOSD (AQP4 IgG Ab–negative).

Hoffman's syndrome is a rare form of hypothyroid myopathy, which causes proximal muscle weakness and pseudohypertrophy of muscles. It is a complication of untreated or uncontrolled Hypothyroidism.The neurological manifestations of hypothyroidism usually occur late in the course of disease. It is quite rare to present with neurological manifestations in the earlier stage of disease. Very few cases of Hoffman’s syndrome were reported from India. Here we report a case of 27-year-old male who presented to the medicine OPD with initial symptoms of proximal muscle weakness, fatigue and calf muscle hypertrophy. On further evaluation patient was found to have hypothyroid myopathy in the form of Hoffman’s syndrome.