- 26 - 
RTLA 2507. Brown bullhead, Ictalurus nebulosus 
Material: Portion of gut with 3 lesions 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Herniation and eversion of intestine wall with 
hyperplasia of mucosa 
Submitter: P. Baumann 
RTLA 2508. Brown bullhead, Ictalurus nebulosus 
Material: String-like growth in 4 coils around barbel 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Epidermal papilloma 
Submitter: P. Baumann 
RTLA 2509. Brown bullhead, Ictalurus nebulosus 
Material: Liver tissue with embedded nodule; dorsal spine 
with 2 growths at base 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Liver - cholangiocarcinoma; base of dorsal spine - 
epidermal papilloma 
Submitter: P. Baumann 
RTLA 2510. Brown bullhead, Ictalurus nebulosus 
Material: Lip with growth 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Invasive, well-differentiated epidermal carcinoma 
Submitter: P. Baumann 
RTLA 2511. Brown bullhead, Ictalurus nebulosus 
Material: Lip with impigmented growth; skin with nodule 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Epidermal papillomas 
Submi11er: P. Baumann 
RTLA 2512. Brown bullhead, Ictalurus nebulosus 
Material: Skin with growth; 2 pieces of liver tissue 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Skin - epidermal papilloma; liver - cholangio¬ 
carcinoma 
Submitter: P. Baumann 
RTLA 2513. Brown bullhead, Ictalurus nebulosus 
Material: Ventral skin with rugose lesion; 2 pieces of liver 
tissue with small lesions 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Skin - epidermal papilloma; liver - cholangiocarci¬ 
noma and basophilic nodule of hepatocellular carcinoma 
Submitter: P. Baumann 
RTLA 2514. Brown bullhead, Ictalurus nebulosus 
Material: Floor of mouth with tri-nodular growth 
Habitat: Ohio, Lorain: Black River 
Diagnosis: Epidermal papilloma 
Submitter: P. Baumann 
