[Muscle metastasis as initial manifestation of adenocarcinoma of the stomach].
BACKGROUND
The presentation of gastric carcinoma with a metastasis in skeletal muscle is a distinct rarity.


METHODS
In a 72-year-old male patient a soft tissue mass behind the knee was biopsied rather late. Histology showed a metastasis of adenocarcinoma. The patient mentioned a slight feeling of strangulation, which led to endoscopy and the diagnosis of gastric carcinoma. Palliative chemotherapy was initially successful but the patient died after 21 months.


CONCLUSIONS
Based on this case history, three points are discussed: how to biopsy a peripheral soft tissue mass, how to proceed when a metastasis of an unknown primary tumor is diagnosed, and the epidemiology of metastases to skeletal muscle.
Departement für Innere Medizin, Universitätsspital Zürich.
B C
BC
Pestalozzi
A R
AR
von Hochstetter
D000230:Adenocarcinoma / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D000368:Aged; D001706:Biopsy; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D007717:Knee / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D019042:Muscle Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D018482:Muscle, Skeletal / Q000473:pathology; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology
Muskel-Metastase als Erstmanifestation eines Adenokarzinoms des Magens.