Neurosarcoidosis: Neurosarcoidosis (sometimes shortened to neurosarcoid) refers to sarcoidosis, a condition of unknown cause featuring granulomas in various tissues, involving the central nervous system (brain and spinal cord). It can have many manifestations, but abnormalities of the cranial nerves (a group of twelve nerves supplying the head and neck area) are the most common.Kveim test: The Kveim test, Nickerson-Kveim or Kveim-Siltzbach test is a skin test used to detect sarcoidosis, where part of a spleen from a patient with known sarcoidosis is injected into the skin of a patient suspected to have the disease. If non caseating granulomas are found (4–6 weeks later), the test is positive.Fibrin ring granuloma: A fibrin ring granuloma is a histopathological finding that is characteristic of Q fever. On hematoxylin-eosin staining, the fibrin ring granuloma consists of a central lipid vacuole (usually washed-out during fixing and staining, leaving only an empty hole) surrounded by a dense red fibrin ring and epithelioid macrophages.Chronic lung diseaseDermatopathic lymphadenopathyErythema nodosumGallium-68 generator: A Germanium-68/Gallium-68 Generator is a device used to extract the positron-emitting isotope 68Ga of gallium from a source of decaying Germanium-68. The parent isotope 68Ge has a half-life of 271 days and can be easily utilized for in-hospital production of generator produced Ga-68.Endobronchial valve: An endobronchial valve is an implantable medical device—a small, one-way valve, which is implanted in an airway in the pulmonary system to treat one of several lung conditions. The one-way endobronchial valve is typically implanted such that when a patient exhales, air is able to flow through the valve and out of the lung compartment that is fed by that airway, but when the patient inhales, the valve closes and blocks air from entering that lung compartment.PrednisoloneCombined pulmonary fibrosis and emphysema: Combined pulmonary fibrosis and emphysema describes a medical syndrome involving both pulmonary fibrosis and emphysema. The combination is most commonly found in male smokers.Brain biopsyLung receptor: Lung receptors sense irritation or inflammation in the bronchi and alveoli.Heerfordt's syndrome: Heerfordt's syndrome, also referred to as uveoparotid fever, Heerfordt–Mylius syndrome, Heerfordt–Waldenström syndrome, and Waldenström’s uveoparotitis, is a rare manifestation of sarcoidosis. The symptoms include inflammation of the eye (uveitis), swelling of the parotid gland, chronic fever, and in some cases, palsy of the facial nerves.Familial hypocalciuric hypercalcemia