Venous lake - Ziwa La Venoushttps://en.wikipedia.org/wiki/Venous_lake
Ziwa La Venous (Venous lake) kwa ujumla ni papuli laini, inayoweza kubana, na giza iliyokolea, yenye urefu wa 0.2- hadi 1-cm inayopatikana kwa kawaida kwenye sehemu za mpaka wa kivermilioni wa mdomo. Vidonda kwa ujumla hutokea kati ya wazee. Ingawa vidonda hivi vinaweza kufanana na melanoma ya nodular, lakini kidonda cha ziwa la venous (venous lake) ni laini.

Matibabu
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  • Inatokea hasa kwenye midomo.
References Senile Hemangioma of the Lips - Case reports 25484424 
NIH
Venous lake ni senile hemangioma ya midomo. Kwa kawaida ni uvimbe laini, wa buluu unaosababishwa na mishipa midogo iliyopanuka. Kwa kawaida huonekana peke yake na hajisikii vigumu kuigusa. Mara nyingi hutokea kwenye sehemu za uso na masikio ambayo hupata jua nyingi. Mwanamume mwenye umri wa miaka 46 aliingia akiwa na uvimbe wa kibluu kwenye mdomo wake wa chini ambao ulikuwa umekua kwa miezi 8. Ilianza ndogo na ikawa kubwa baada ya muda. Alisema hakuwa amejeruhiwa eneo hilo. Hakuwa na uzoefu wa kutokwa na damu bila sababu au baada ya majeraha madogo. Daktari alipomchunguza, walipata nundu moja ya rangi ya samawati kwenye mdomo wake wa chini ambayo ilikuwa laini na rahisi kubana. Daktari alimtendea kwa cryotherapy kwa kutumia nitrojeni kioevu, kufungia kidonda kwa sekunde 10 kwa wakati na ukingo mdogo karibu nayo. Walifanya matibabu haya kila baada ya wiki mbili. Baada ya wiki 12, kulikuwa na uboreshaji fulani.
A venous lake, sometimes referred to as senile hemangioma of the lips is usually a solitary, non-indurated, soft, compressible, blue papule occurring due to dilatation of venules. It is commonly found on sun-exposed surfaces of the face and ears. A 46 year old male patient presented with an 8 month history of a single, painless, bluish swelling over the lower lip which began as a pea sized lesion and gradually increased to the present size. Patient strongly denied any history of trauma at the site. No history of bleeding spontaneously or following minimal trauma could be elicited. On physical examination, a single, violaceous, soft, compressible, non-indurated, non-pulsatile papule was present on the lower lip. Patient was treated with cryotherapy with application of liquid nitrogen by dipstick method with one 10-second freeze-thaw cycle with a 1-mm margin. This was done at biweekly intervals. Some improvement was obtained following 12 weeks of therapy.