- 25 year old male African Penguin (Spheniscus demersus) presented for hyporexia to anorexic for 4 weeks.
- 2 sets of blood (CBC/Chem/EPH) completed and an abnormal EPH noted but nothing else concerning.
- On Antifungals and Antibiotics and increased calorie diet with supplementation. Still not gaining weight.
1. Focal, eccentric mural mass of the proventriculus/ventriculus wall; consider neoplasia
like an adenocarcinoma, gastrointestinal stromal tumor, or leiomyosarcoma. An
infectious abscess or cavitated granuloma is considered less likely.
2. Right sided pneumonia with focal air sacculitis; consider infectious etiologies or metastatic neoplasia.
- Proventriculus/ventriculus: Regionally at the level of the proventriculus and ventriculus junction the mucosa, submucosa, muscularis, and serosa are effaced by an infiltrative, poorly demarcated, unencapsulated neoplasm. Adenocarcinoma, transmural
- Lung: Multifocally, parabronchial interstitium contain small aggregates of macrophages with yellow to brown granular and often refractile cytoplasmic pigment (pneumoconiosis). Rarely, pulmonary interstitium contains nodular aggregates of mineralized bone (osseous metaplasia). Moderate, multifocal, chronic, pneumoconiosis with rare interstitial osseous metaplasia
Gross Tissue Photographs (below)
Stop here and review images first