title: Primary reticulum-cell sarcoma of the alveolar mucosa.
mesh_terms: D003937:Diagnosis, Differential; D005882:Gingival Diseases; D005887:Gingival Neoplasms / Q000473:pathology; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000175:diagnosis