title: Unilateral calf swelling.
authors.affiliation: Accident and Emergency Department, United Christian Hospital, Hong Kong, China. Electronic address: aj12029@gmail.com.
authors.forename: Shing
authors.initials: S
authors.lastname: Ching
authors.affiliation: Accident and Emergency Department, United Christian Hospital, Hong Kong, China.
authors.forename: Soo Moi
authors.initials: SM
authors.lastname: Ting
authors.affiliation: Accident and Emergency Department, United Christian Hospital, Hong Kong, China.
authors.forename: Kai Ming
authors.initials: KM
authors.lastname: Li
mesh_terms: D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D004487:Edema / Q000209:etiology; D006801:Humans; D007866:Leg / Q000000981:diagnostic imaging; D008297:Male; D011151:Popliteal Cyst / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D012422:Rupture, Spontaneous; D014463:Ultrasonography; D020246:Venous Thrombosis / Q000175:diagnosis*