Word and Excel
Most small labs in India still type reports in Word and keep the register in Excel, and it works: the layout is exactly what the pathologist wants and nobody needs training. What it cannot do is check itself. Nothing tells you a haemoglobin is below the range for a woman, nothing stops two patients getting the same case number, and nothing proves who changed a value after it was printed. Here is the trade, in both directions.
12 rows compared, 0 of them lost, and an eight-step manual checklist.