Handwriting by doctors is famous for being hard to read. I can't make out all of it, either, and I don't know all the medical abbreviations.

Diagnose:

- Z. n. (or u. ?) N?p?htamie (?) bei Nierenzellkarzinom [cancer of kidney cells] (...)
- Ahtndl [?] Kontroll-CT [computertomographic scan]
-> kein sicherer Tumornachweis [no certain proof of tumor]
-> aber eitrige [?] pulmonale [?] Veränderung in kleiner Nebenniere (eher gutartig) [but ? ? change in suprarenal gland]
Deshalb Kontrolle Anfg. März 2014
- Terminvereinbarung nach telef. Rücksprache

In other words, he has seen something on the CT near the kidney that might possibly be a tumor (or might be perfectly fine), so he wants to have another look at the beginning of March. An appointment should be made by phone.

Yea, it's really difficult to read this handwriting. The few things i could make out:

- Z. u. ... bei Nierenzellkarzinom (pT3 pNo Mo Ro) [Tumorklassifikation: T = Größe und Invasivität, N = Beurteilung der Lymphknoten, M = Aussage über Fernmetastasen, R = Grad der der Bösartigkeit]

- ... Kontroll-CT

---> kein sicherer Tumornachweis aber direkte? pulmonale Veränderung in kleiner ... (eher gutartig)

---> Deshalb Kontrolle Anfang März 2014

- Terminvereinbarung nach telefonischer Rücksprache

Maybe someone else can add the missing passages.