Spec. MD. Guven Koc

A 72-year-old retired Byzantine art restorer presented with progressive weakness and bronze skin pigmentation. Dr. Koc diagnosed Addison's disease masked by years of occupational exposure to pigments and solvents. Treatment involved glucocorticoid replacement and coordination with occupational medicine specialists to address long-term solvent exposure effects, resulting in gradual pigment normalization and improved energy over six months.

A 19-year-old university exchange student from Kazakhstan developed recurrent fevers and migratory joint pain. Dr. Koc identified Brucellosis transmitted through unpasteurized dairy consumed during a rural homestay, complicated by reactive arthritis. Treatment required extended combination antibiotics and rheumatology consultation, with full recovery after three months and education about food safety practices.

A 41-year-old night-shift air traffic controller presented with resistant hypertension and circadian rhythm disruption. Dr. Koc implemented a chronotherapy approach, timing medications to the patient's inverted sleep-wake cycle and incorporating melatonin supplementation. Blood pressure normalized within eight weeks without additional medications, and the patient reported improved alertness during shifts.

A 67-year-old former silk worm farmer from Bursa presented with progressive dyspnea and digital clubbing. Dr. Koc diagnosed hypersensitivity pneumonitis from years of exposure to silkworm cocoon proteins (sericin), a rarely documented occupational lung disease. Treatment involved corticosteroid therapy and complete avoidance of exposure, with lung function improving by 40% over four months.

A 28-year-old competitive freediver from the Black Sea coast presented with recurrent episodes of confusion and headache after deep dives. Dr. Koc identified an unusual pattern of delayed-onset cerebral oxygen toxicity exacerbated by a previously undiagnosed PFO (patent foramen ovale). Treatment involved a collaborative approach with cardiology for device closure and a customized recompression protocol, allowing the patient to return to competitive diving with new depth limitations.